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Hackers Exploit Mitel VoIP Zero-Day in Likely Ransomware Attack

By Ravie Lakshmanan
A suspected ransomware intrusion attempt against an unnamed target leveraged a Mitel VoIP appliance as an entry point to achieve remote code execution and gain initial access to the environment. The findings come from cybersecurity firm CrowdStrike, which traced the source of the attack to a Linux-based Mitel VoIP device sitting on the network perimeter, while also identifying a previously

It’s Social Media Day! Here’s How to Protect Yourself From Social Engineering Online

By McAfee

It’s Social Media Day! How are you celebrating? Reposting your very first profile picture from a decade ago? Sharing your most-loved status update or the photo you’re most proud of? This year, consider commemorating the day by learning more about how to keep your information safe. Enjoy your favorite platform, but be on the lookout for scams, such as social engineering. 

What is Social Engineering 

Social engineering is a cybercrime common to social media sites. It is a tactic where a cybercriminal lurks on people’s social media pages, gleaning personal information that they then use to impersonate them elsewhere. 

With more than half of the global population on social media, you may think that a cybercriminal will never single you out from such a huge pool; however, it is possible.1 Luckily, you only have to make a few, easy changes to your online habits to keep your valuable private information just that: private. Check out these tips to make smart decisions and be more confident about your and your family’s online security. 

Why Do Cybercriminals Care About Social Media? 

Think of the types of posts you share with your dozens – or even hundreds or thousands! – of followers: updates about your life, where you live, work, or favorite travel destinations, your hobbies, pets, family members, etc. All of these details, that only you and those closest to you should know, are a valuable commodity to cybercriminals. Plus, now that social media shopping is growing in popularity, the credit card information linked to accounts is sweetening the deal for cybercriminals. 

Here are a few social engineering scams that are common to social media.  

Credential stuffing

People commonly create passwords based on things, places, and people that are important. Have you ever published a 20 questions-style get-to-know-me post? Those contain a lot of valuable personally identifiable information (PII). With just a few of those details about your personal life, cybercriminals can make educated guesses at your passwords, a tactic called credential stuffing. If they’re able to crack the code to one of your accounts, they’ll then input that password and login variations in several other sites, especially online banking portals, to see if they can gain entry to those too. 

Fake contests 

You’ve won! Send us your banking information and address, and you’ll receive a package in the mail or a direct deposit to your bank account!  

But did you enter a drawing for a prize? Very rarely does anyone win something just by being a follower of a certain page. If you receive a message similar to the above, it’s likely a phisher trying to draw more PII and sensitive banking information out of you. Or, the message may have links within it that redirect to an untrustworthy site. If you regularly enter social media contests, keep a list and only respond to legitimate ones. Also, never give your banking information out over social media, private messages, or email. 

Emotional messages and posts

There are plenty of valid fundraisers and petitions circulating around social media; however, there are just as many social engineering scams that dupe social media users because they inspire a strong emotion in them. For example, there have been several scams around Ukrainian donation sites. Cybercriminals often use fear, anger, or sadness to inspire people to open their wallets and share confidential banking information. 

How to Protect Yourself from Social Engineering

Luckily, all it takes is a few smart habits to stop social engineers in their tracks. Consider the following tips and make these small changes to your social media usage: 

Edit your follower or friend lists

At this point, you’ve probably had several of your social media accounts active for over a decade. That means it’s time to do some cleaning out of your friends and followers lists. It’s best to only accept requests from people you personally know and would actually like to keep in the loop about your life. A friend and follower request from strangers could be cyber criminals in disguise. Also, consider setting your account to private so that your posts are invisible to strangers. 

Slow down and think 

Social engineering hacks often bank on people acting rashly and quickly because of strong emotion, either excitement, fear, sadness, or anger. If you see a post on your newsfeed or receive a direct message that gives you a tight window to respond and asks for PII, slow down and think before acting. Double-check the destination of every link in the message by hovering over it with your cursor and checking the link preview at the bottom of your browser screen. Be careful, because some link previews include slight misspellings of legitimate websites. As a great rule of thumb, be automatically skeptical of direct messages from people you do not personally know. And if a DM from a friend seems out of the ordinary, shoot them a text to confirm they actually sent it. It could be that their social media account was hacked and a criminal is spamming their followers.   

Create strong, unique passwords or passphrases

A password manager will go a long way toward ensuring you have unique, strong passwords and passphrases for every account. Not reusing passwords makes credential stuffing impossible. McAfee True Key stores all your logins and passwords and guards them with one of the strongest encryption algorithms available. All you need to do is remember your master password. It’s a great practice to also enable multifactor authentication whenever a website offers it. This makes it incredibly difficult for a cybercriminal to break into your online accounts with their educated guesses at your password. 

Live More Confidently and Safely Online 

Now that you know what to look for and the best tricks to be safe, you can feel more confident that you’re doing everything you can to protect your online accounts and private information. McAfee Protection Score can also help you take control of your online safety. This service allows you to monitor your current online safety and encourages you to take specific steps to improve it. Now you can enjoy digitally keeping in touch with your friends with peace of mind! 

1Smart Insights, “Global social media statistics research summary 2022 

The post It’s Social Media Day! Here’s How to Protect Yourself From Social Engineering Online appeared first on McAfee Blog.

Update Google Chrome Browser to Patch New Zero-Day Exploit Detected in the Wild

By Ravie Lakshmanan
Google on Monday shipped security updates to address a high-severity zero-day vulnerability in its Chrome web browser that it said is being exploited in the wild. The shortcoming, tracked as CVE-2022-2294, relates to a heap overflow flaw in the WebRTC component that provides real-time audio and video communication capabilities in browsers without the need to install plugins or download native

Microsoft Releases Fix for Zero-Day Flaw in July 2022 Security Patch Rollout

By Ravie Lakshmanan
Microsoft released its monthly round of Patch Tuesday updates to address 84 new security flaws spanning multiple product categories, counting a zero-day vulnerability that's under active attack in the wild. Of the 84 shortcomings, four are rated Critical, and 80 are rated Important in severity. Also separately resolved by the tech giant are two other bugs in the Chromium-based Edge browser, one

Microsoft Patch Tuesday, July 2022 Edition

By BrianKrebs

Microsoft today released updates to fix at least 86 security vulnerabilities in its Windows operating systems and other software, including a weakness in all supported versions of Windows that Microsoft warns is actively being exploited. The software giant also has made a controversial decision to put the brakes on a plan to block macros in Office documents downloaded from the Internet.

In February, security experts hailed Microsoft’s decision to block VBA macros in all documents downloaded from the Internet. The company said it would roll out the changes in stages between April and June 2022.

Macros have long been a trusted way for cybercrooks to trick people into running malicious code. Microsoft Office by default warns users that enabling macros in untrusted documents is a security risk, but those warnings can be easily disabled with the click of button. Under Microsoft’s plan, the new warnings provided no such way to enable the macros.

As Ars Technica veteran reporter Dan Goodin put it, “security professionals—some who have spent the past two decades watching clients and employees get infected with ransomware, wipers, and espionage with frustrating regularity—cheered the change.”

But last week, Microsoft abruptly changed course. As first reported by BleepingComputer, Redmond said it would roll back the changes based on feedback from users.

“While Microsoft has not shared the negative feedback that led to the rollback of this change, users have reported that they are unable to find the Unblock button to remove the Mark-of-the-Web from downloaded files, making it impossible to enable macros,” Bleeping’s Sergiu Gatlan wrote.

Microsoft later said the decision to roll back turning off macros by default was temporary, although it has not indicated when this important change might be made for good.

The zero-day Windows vulnerability already seeing active attacks is CVE-2022-22047, which is an elevation of privilege vulnerability in all supported versions of Windows. Trend Micro’s Zero Day Initiative notes that while this bug is listed as being under active attack, there’s no information from Microsoft on where or how widely it is being exploited.

“The vulnerability allows an attacker to execute code as SYSTEM, provided they can execute other code on the target,” ZDI’s Dustin Childs wrote. “Bugs of this type are typically paired with a code execution bug, usually a specially crafted Office or Adobe document, to take over a system. These attacks often rely on macros, which is why so many were disheartened to hear Microsoft’s delay in blocking all Office macros by default.”

Kevin Breen, director of cyber threat research at Immersive Labs, said CVE-2022-22047 is the kind of vulnerability that is typically seen abused after a target has already been compromised.

“Crucially, it allows the attacker to escalate their permissions from that of a normal user to the same permissions as the SYSTEM,” he said. “With this level of access, the attackers are able to disable local services such as Endpoint Detection and Security tools. With SYSTEM access they can also deploy tools like Mimikatz which can be used to recover even more admin and domain level accounts, spreading the threat quickly.”

After a brief reprieve from patching serious security problems in the Windows Print Spooler service, we are back to business as usual. July’s patch batch contains fixes for four separate elevation of privilege vulnerabilities in Windows Print Spooler, identified as CVE-2022-22022, CVE-2022-22041, CVE-2022-30206, and CVE-2022-30226. Experts at security firm Tenable note that these four flaws provide attackers with the ability to delete files or gain SYSTEM level privileges on a vulnerable system.

Roughly a third of the patches issued today involve weaknesses in Microsoft’s Azure Site Recovery offering. Other components seeing updates this month include Microsoft Defender for Endpoint; Microsoft Edge (Chromium-based); Office; Windows BitLocker; Windows Hyper-V; Skype for Business and Microsoft Lync; and Xbox.

Four of the flaws fixed this month address vulnerabilities Microsoft rates “critical,” meaning they could be used by malware or malcontents to assume remote control over unpatched Windows systems, usually without any help from users. CVE-2022-22029 and CVE-2022-22039 affect Network File System (NFS) servers, and CVE-2022-22038 affects the Remote Procedure Call (RPC) runtime.

“Although all three of these will be relatively tricky for attackers to exploit due to the amount of sustained data that needs to be transmitted, administrators should patch sooner rather than later,” said Greg Wiseman, product manager at Rapid7. “CVE-2022-30221 supposedly affects the Windows Graphics Component, though Microsoft’s FAQ indicates that exploitation requires users to access a malicious RDP server.”

Separately, Adobe today issued patches to address at least 27 vulnerabilities across multiple products, including Acrobat and Reader, Photoshop, RoboHelp, and Adobe Character Animator.

For a closer look at the patches released by Microsoft today and indexed by severity and other metrics, check out the always-useful Patch Tuesday roundup from the SANS Internet Storm Center. And it’s not a bad idea to hold off updating for a few days until Microsoft works out any kinks in the updates: AskWoody.com usually has the lowdown on any patches that may be causing problems for Windows users.

As always, please consider backing up your system or at least your important documents and data before applying system updates. And if you run into any problems with these updates, please drop a note about it here in the comments.

7 cybersecurity tips for your summer vacation!

By Paul Ducklin
Here you go - seven thoughtful cybersecurity tips to help you travel safely...

Microsoft Uncovers Austrian Company Exploiting Windows and Adobe Zero-Day Exploits

By Ravie Lakshmanan
A cyber mercenary that "ostensibly sells general security and information analysis services to commercial customers" used several Windows and Adobe zero-day exploits in limited and highly-targeted attacks against European and Central American entities. The company, which Microsoft describes as a private-sector offensive actor (PSOA), is an Austria-based outfit called DSIRF that's linked to the

How to celebrate SysAdmin Day!

By Paul Ducklin
I've just popped in to wish you all/The best SysAdmin Day!

Microsoft Patch Tuesday, August 2022 Edition

By BrianKrebs

Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.

In June, Microsoft patched a vulnerability in MSDT dubbed “Follina” that had been used in active attacks for at least three months prior. This latest MSDT bug — CVE-2022-34713 — is a remote code execution flaw that requires convincing a target to open a booby-trapped file, such as an Office document. Microsoft this month also issued a different patch for another MSDT flaw, tagged as CVE-2022-35743.

The publicly disclosed Exchange flaw is CVE-2022-30134, which is an information disclosure weakness. Microsoft also released fixes for three other Exchange flaws that rated a “critical” label, meaning they could be exploited remotely to compromise the system and with no help from users. Microsoft says addressing some of the Exchange vulnerabilities fixed this month requires administrators to enable Windows Extended protection on Exchange Servers. See Microsoft’s blog post on the Exchange Server updates for more details.

“If your organization runs local exchange servers, this trio of CVEs warrant an urgent patch,” said Kevin Breen, director of cyber threat research for Immerse Labs. “Exchanges can be treasure troves of information, making them valuable targets for attackers. With CVE-2022-24477, for example, an attacker can gain initial access to a user’s host and could take over the mailboxes for all exchange users, sending and reading emails and documents. For attackers focused on Business Email Compromise this kind of vulnerability can be extremely damaging.”

The other two critical Exchange bugs are tracked as CVE-2022-24516 and CVE-2022-21980. It’s difficult to believe it’s only been a little more than a year since malicious hackers worldwide pounced in a bevy of zero-day Exchange vulnerabilities to remotely compromise the email systems for hundreds of thousands of organizations running Exchange Server locally for email. That lingering catastrophe is reminder enough that critical Exchange bugs deserve immediate attention.

The SANS Internet Storm Center‘s rundown on Patch Tuesday warns that a critical remote code execution bug in the Windows Point-to-Point Protocol (CVE-2022-30133) could become “wormable” — a threat capable of spreading across a network without any user interaction.

“Another critical vulnerability worth mentioning is an elevation of privilege affecting Active Directory Domain Services (CVE-2022-34691),” SANS wrote. “According to the advisory, ‘An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow elevation of privilege to System.’ A system is vulnerable only if Active Directory Certificate Services is running on the domain. The CVSS for this vulnerability is 8.8.”

Breen highlighted a set of four vulnerabilities in Visual Studio that earned Microsoft’s less-dire “important” rating but that nevertheless could be vitally important for the security of developer systems.

“Developers are empowered with access to API keys and deployment pipelines that, if compromised, could be significantly damaging to organizations,” he said. “So it’s no surprise they are often targeted by more advanced attackers. Patches for their tools should not be overlooked. We’re seeing a continued trend of supply-chain compromise too, making it vital that we ensure developers, and their tools, are kept up-to-date with the same rigor we apply to standard updates.”

Greg Wiseman, product manager at Rapid7, pointed to an interesting bug Microsoft patched in Windows Hello, the biometric authentication mechanism for Windows 10.  Microsoft notes that the successful exploitation of the weakness requires physical access to the target device, but would allow an attacker to bypass a facial recognition check.

Wiseman said despite the record number of vulnerability fixes from Redmond this month, the numbers are slightly less dire.

“20 CVEs affect their Chromium-based Edge browser and 34 affect Azure Site Recovery (up from 32 CVEs affecting that product last month),” Wiseman wrote. “As usual, OS-level updates will address a lot of these, but note that some extra configuration is required to fully protect Exchange Server this month.”

As it often does on Patch Tuesday, Adobe has also released security updates for many of its products, including Acrobat and Reader, Adobe Commerce and Magento Open Source. More details here.

Please consider backing up your system or at least your important documents and data before applying system updates. And if you run into any problems with these updates, please drop a note about it here in the comments.

Microsoft Issues Patches for 121 Flaws, Including Zero-Day Under Active Attack

By Ravie Lakshmanan
As many as 121 new security flaws were patched by Microsoft as part of its Patch Tuesday updates for the month of August, which also includes a fix for a Support Diagnostic Tool vulnerability that the company said is being actively exploited in the wild. Of the 121 bugs, 17 are rated Critical, 102 are rated Important, one is rated Moderate, and one is rated Low in severity. Two of the issues

New Google Chrome Zero-Day Vulnerability Being Exploited in the Wild

By Ravie Lakshmanan
Google on Tuesday rolled out patches for Chrome browser for desktops to contain an actively exploited high-severity zero-day flaw in the wild. Tracked as CVE-2022-2856, the issue has been described as a case of insufficient validation of untrusted input in Intents. Security researchers Ashley Shen and Christian Resell of Google Threat Analysis Group have been credited with reporting the flaw on

Google Patches Chrome’s Fifth Zero-Day of the Year

By Elizabeth Montalbano
An insufficient validation input flaw, one of 11 patched in an update this week, could allow for arbitrary code execution and is under active attack.

Google Patches Chrome’s Fifth Zero-Day of the Year

By Elizabeth Montalbano
An insufficient validation input flaw, one of 11 patched in an update this week, could allow for arbitrary code execution and is under active attack.

URGENT! Apple slips out zero-day update for older iPhones and iPads

By Paul Ducklin
Patch as soon as you can - that recent WebKit zero-day affecting new iPhones and iPads is apparently being used against older models, too.

Apple Releases iOS Update for Older iPhones to Fix Actively Exploited Vulnerability

By Ravie Lakshmanan
Apple on Wednesday backported security updates to older iPhones, iPads, and iPod touch devices to address a critical security flaw that has been actively exploited in the wild. The shortcoming, tracked as CVE-2022-32893 (CVSS score: 8.8), is an out-of-bounds write issue affecting WebKit that could lead to arbitrary code execution when processing maliciously crafted web content. WebKit is the

Chrome and Edge fix zero-day security hole – update now!

By Paul Ducklin
This time, the crooks got there first - only 1 security hole patched, but it's a zero-day.

Hackers Exploit Zero-Day in WordPress BackupBuddy Plugin in ~5 Million Attempts

By Ravie Lakshmanan
A zero-day flaw in a WordPress plugin called BackupBuddy is being actively exploited, WordPress security company Wordfence has disclosed. "This vulnerability makes it possible for unauthenticated users to download arbitrary files from the affected site which can include sensitive information," it said. BackupBuddy allows users to back up their entire WordPress installation from within the

Apple Releases iOS and macOS Updates to Patch Actively Exploited Zero-Day Flaw

By Ravie Lakshmanan
Apple has released another round of security updates to address multiple vulnerabilities in iOS and macOS, including a new zero-day flaw that has been used in attacks in the wild. The issue, assigned the identifier CVE-2022-32917, is rooted in the Kernel component and could enable a malicious app to execute arbitrary code with kernel privileges. "Apple is aware of a report that this issue may

Wormable Flaw, 0days Lead Sept. 2022 Patch Tuesday

By BrianKrebs

This month’s Patch Tuesday offers a little something for everyone, including security updates for a zero-day flaw in Microsoft Windows that is under active attack, and another Windows weakness experts say could be used to power a fast-spreading computer worm. Also, Apple has also quashed a pair of zero-day bugs affecting certain macOS and iOS users, and released iOS 16, which offers a new privacy and security feature called “Lockdown Mode.” And Adobe axed 63 vulnerabilities in a range of products.

Microsoft today released software patches to plug at least 64 security holes in Windows and related products. Worst in terms of outright scariness is CVE-2022-37969, which is a “privilege escalation” weakness in the Windows Common Log File System Driver that allows attackers to gain SYSTEM-level privileges on a vulnerable host. Microsoft says this flaw is already being exploited in the wild.

Kevin Breen, director of cyber threat research at Immersive Labs, said any vulnerability that is actively targeted by attackers in the wild must be put to the top of any patching list.

“Not to be fooled by its relatively low CVSS score of 7.8, privilege escalation vulnerabilities are often highly sought after by cyber attackers,” Breen said. “Once an attacker has managed to gain a foothold on a victim’s system, one of their first actions will be to gain a higher level of permissions, allowing the attacker to disable security applications and any device monitoring. There is no known workaround to date, so patching is the only effective mitigation.”

Satnam Narang at Tenable said CVE-2022-24521 — a similar vulnerability in the same Windows log file component — was patched earlier this year as part of Microsoft’s April Patch Tuesday release and was also exploited in the wild.

“CVE-2022-37969 was disclosed by several groups, though it’s unclear if CVE-2022-37969 is a patch-bypass for CVE-2022-24521 at this point,” Narang said.

Another vulnerability Microsoft patched this month — CVE-2022-35803 — also seems to be related to the same Windows log file component. While there are no indications CVE-2022-35803 is being actively exploited, Microsoft suggests that exploitation of this flaw is more likely than not.

Trend Micro’s Dustin Childs called attention to CVE-2022-34718, a remote code execution flaw in the Windows TCP/IP service that could allow an unauthenticated attacker to execute code with elevated privileges on affected systems without user interaction.

“That officially puts it into the ‘wormable’ category and earns it a CVSS rating of 9.8,” Childs said. “However, only systems with IPv6 enabled and IPSec configured are vulnerable. While good news for some, if you’re using IPv6 (as many are), you’re probably running IPSec as well. Definitely test and deploy this update quickly.”

Cisco Talos warns about four critical vulnerabilities fixed this month — CVE-2022-34721 and CVE-2022-34722 — which have severity scores of 9.8, though they are “less likely” to be exploited, according to Microsoft.

“These are remote code execution vulnerabilities in the Windows Internet Key Exchange protocol that could be triggered if an attacker sends a specially crafted IP packet,” wrote Jon Munshaw and Asheer Malhotra. “Two other critical vulnerabilities, CVE-2022-35805 and CVE-2022-34700 exist in on-premises instances of Microsoft Dynamics 365. An authenticated attacker could exploit these vulnerabilities to run a specially crafted trusted solution package and execute arbitrary SQL commands. The attacker could escalate their privileges further and execute commands as the database owner.”

Not to be outdone, Apple fixed at least two zero-day vulnerabilities when it released updates for iOS, iPadOS, macOS and Safari. CVE-2022-32984 is a problem in the deepest recesses of the operating system (the kernel). Apple pushed an emergency update for a related zero-day last month in CVE-2022-32983, which could be used to foist malware on iPhones, iPads and Macs that visited a booby-trapped website.

Also listed under active attack is CVE-2022-32817, which has been fixed on macOS 12.6 (Monterey), macOS 11.7 (Big Sur), iOS 15.7 and iPadOS 15.7, and iOS 16. The same vulnerability was fixed in Apple Watch in July 2022, and credits Xinru Chi of Japanese cybersecurity firm Pangu Lab.

“Interestingly, this CVE is also listed in the advisory for iOS 16, but it is not called out as being under active exploit for that flavor of the OS,” Trend Micro’s Childs noted. “Apple does state in its iOS 16 advisory that ‘Additional CVE entries to be added soon.’ It’s possible other bugs could also impact this version of the OS. Either way, it’s time to update your Apple devices.”

Apple’s iOS 16 includes two new security and privacy features — Lockdown Mode and Safety Check. Wired.com describes Safety Check as a feature for users who are at risk for, or currently experiencing, domestic abuse.

“The tool centralizes a number of controls in one place to make it easier for users to manage and revoke access to their location data and reset privacy-related permissions,” wrote Lily Hay Newman.

“Lockdown Mode, on the other hand, is meant for users who potentially face targeted spyware attacks and aggressive state-backed hacking. The feature comprehensively restricts any nonessential iOS features so there are as few potential points of entry to a device as possible. As more governments and repressive entities around the world have begun purchasing powerful commodity spyware to target individuals of particular importance or interest, iOS’s general security defenses haven’t been able to keep pace with these specialized threats.”

To turn on Lockdown Mode in iOS 16, go to Settings, then Privacy and Security, then Lockdown Mode. Safety Check is located in the same area.

Finally, Adobe released seven patches addressing 63 security holes in Adobe Experience Manager, Bridge, InDesign, Photoshop, InCopy, Animate, and Illustrator. More on those updates is here.

Don’t forget to back up your data and/or system before applying any security updates. If you experience glitches or problems installing any of these patches this month, please consider leaving a comment about it below; there’s a decent chance other readers have experienced the same and may chime in here with useful tips.

Over 280,000 WordPress Sites Attacked Using WPGateway Plugin Zero-Day Vulnerability

By Ravie Lakshmanan
A zero-day flaw in the latest version of a WordPress premium plugin known as WPGateway is being actively exploited in the wild, potentially allowing malicious actors to completely take over affected sites. Tracked as CVE-2022-3180 (CVSS score: 9.8), the issue is being weaponized to add a malicious administrator user to sites running the WPGateway plugin, WordPress security company Wordfence

Microsoft's Latest Security Update Fixes 64 New Flaws, Including a Zero-Day

By Ravie Lakshmanan
Tech giant Microsoft on Tuesday shipped fixes to quash 64 new security flaws across its software lineup, including one zero-day flaw that has been actively exploited in real-world attacks. Of the 64 bugs, five are rated Critical, 57 are rated Important, one is rated Moderate, and one is rated Low in severity. The patches are in addition to 16 vulnerabilities that Microsoft addressed in its

S3 Ep100: Browser-in-the-Browser – how to spot an attack [Audio + Text]

By Paul Ducklin
Latest episode - listen now! Cosmic rockets, zero-days, spotting cybercrooks, and unlocking the DEADBOLT...

s3-ep100-js-1200

WARNING: New Unpatched Microsoft Exchange Zero-Day Under Active Exploitation

By Ravie Lakshmanan
Security researchers are warning of previously undisclosed flaws in fully patched Microsoft Exchange servers being exploited by malicious actors in real-world attacks to achieve remote code execution on affected systems. The advisory comes from Vietnamese cybersecurity company GTSC, which discovered the shortcomings as part of its security monitoring and incident response efforts in August 2022.

State-Sponsored Hackers Likely Exploited MS Exchange 0-Days Against ~10 Organizations

By Ravie Lakshmanan
Microsoft on Friday disclosed that a single activity group in August 2022 achieved initial access and breached Exchange servers by chaining the two newly disclosed zero-day flaws in a limited set of attacks aimed at less than 10 organizations globally. "These attacks installed the Chopper web shell to facilitate hands-on-keyboard access, which the attackers used to perform Active Directory

Microsoft: Two New 0-Day Flaws in Exchange Server

By BrianKrebs

Microsoft Corp. is investigating reports that attackers are exploiting two previously unknown vulnerabilities in Exchange Server, a technology many organizations rely on to send and receive email. Microsoft says it is expediting work on software patches to plug the security holes. In the meantime, it is urging a subset of Exchange customers to enable a setting that could help mitigate ongoing attacks.

In customer guidance released Thursday, Microsoft said it is investigating two reported zero-day flaws affecting Microsoft Exchange Server 2013, 2016, and 2019. CVE-2022-41040, is a Server-Side Request Forgery (SSRF) vulnerability that can enable an authenticated attacker to remotely trigger the second zero-day vulnerability — CVE-2022-41082 — which allows remote code execution (RCE) when PowerShell is accessible to the attacker.

Microsoft said Exchange Online has detections and mitigation in place to protect customers. Customers using on-premises Microsoft Exchange servers are urged to review the mitigations suggested in the security advisory, which Microsoft says should block the known attack patterns.

Vietnamese security firm GTSC on Thursday published a writeup on the two Exchange zero-day flaws, saying it first observed the attacks in early August being used to drop “webshells.” These web-based backdoors offer attackers an easy-to-use, password-protected hacking tool that can be accessed over the Internet from any browser.

“We detected webshells, mostly obfuscated, being dropped to Exchange servers,” GTSC wrote. “Using the user-agent, we detected that the attacker uses Antsword, an active Chinese-based opensource cross-platform website administration tool that supports webshell management. We suspect that these come from a Chinese attack group because the webshell codepage is 936, which is a Microsoft character encoding for simplified Chinese.”

GTSC’s advisory includes details about post-compromise activity and related malware, as well as steps it took to help customers respond to active compromises of their Exchange Server environment. But the company said it would withhold more technical details of the vulnerabilities for now.

In March 2021, hundreds of thousands of organizations worldwide had their email stolen and multiple backdoor webshells installed, all thanks to four zero-day vulnerabilities in Exchange Server.

Granted, the zero-day flaws that powered that debacle were far more critical than the two detailed this week, and there are no signs yet that exploit code has been publicly released (that will likely change soon). But part of what made last year’s Exchange Server mass hack so pervasive was that vulnerable organizations had little or no advance notice on what to look for before their Exchange Server environments were completely owned by multiple attackers.

Microsoft is quick to point out that these zero-day flaws require an attacker to have a valid username and password for an Exchange user, but this may not be such a tall order for the hackers behind these latest exploits against Exchange Server.

Steven Adair is president of Volexity, the Virginia-based cybersecurity firm that was among the first to sound the alarm about the Exchange zero-days targeted in the 2021 mass hack. Adair said GTSC’s writeup includes an Internet address used by the attackers that Volexity has tied with high confidence to a China-based hacking group that has recently been observed phishing Exchange users for their credentials.

In February 2022, Volexity warned that this same Chinese hacking group was behind the mass exploitation of a zero-day vulnerability in the Zimbra Collaboration Suite, which is a competitor to Microsoft Exchange that many enterprises use to manage email and other forms of messaging.

If your organization runs Exchange Server, please consider reviewing the Microsoft mitigations and the GTSC post-mortem on their investigations.

Move over Patch Tuesday – it’s Ada Lovelace Day!

By Paul Ducklin
Hacking on actual computers is one thing, but hacking purposefully on imaginary computers is, these days, something we can only imagine.

Microsoft Patch Tuesday, October 2022 Edition

By BrianKrebs

Microsoft today released updates to fix at least 85 security holes in its Windows operating systems and related software, including a new zero-day vulnerability in all supported versions of Windows that is being actively exploited. However, noticeably absent from this month’s Patch Tuesday are any updates to address a pair of zero-day flaws being exploited this past month in Microsoft Exchange Server.

The new zero-day flaw– CVE-2022-41033 — is an “elevation of privilege” bug in the Windows COM+ event service, which provides system notifications when users logon or logoff. Microsoft says the flaw is being actively exploited, and that it was reported by an anonymous individual.

“Despite its relatively low score in comparison to other vulnerabilities patched today, this one should be at the top of everyone’s list to quickly patch,” said Kevin Breen, director of cyber threat research at Immersive Labs. “This specific vulnerability is a local privilege escalation, which means that an attacker would already need to have code execution on a host to use this exploit. Privilege escalation vulnerabilities are a common occurrence in almost every security compromise. Attackers will seek to gain SYSTEM or domain-level access in order to disable security tools, grab credentials with tools like Mimkatz and move laterally across the network.

Indeed, Satnam Narang, senior staff research engineer at Tenable, notes that almost half of the security flaws Microsoft patched this week are elevation of privilege bugs.

Some privilege escalation bugs can be particularly scary. One example is CVE-2022-37968, which affects organizations running Kubernetes clusters on Azure and earned a CVSS score of 10.0 — the most severe score possible.

Microsoft says that to exploit this vulnerability an attacker would need to know the randomly generated DNS endpoint for an Azure Arc-enabled Kubernetes cluster. But that may not be such a tall order, says Breen, who notes that a number of free and commercial DNS discovery services now make it easy to find this information on potential targets.

Late last month, Microsoft acknowledged that attackers were exploiting two previously unknown vulnerabilities in Exchange Server. Paired together, the two flaws are known as “ProxyNotShell” and they can be chained to allow remote code execution on Exchange Server systems.

Microsoft said it was expediting work on official patches for the Exchange bugs, and it urged affected customers to enable certain settings to mitigate the threat from the attacks. However, those mitigation steps were soon shown to be ineffective, and Microsoft has been adjusting them on a daily basis nearly each day since then.

The lack of Exchange patches leaves a lot of Microsoft customers exposed. Security firm Rapid7 said that as of early September 2022 the company observed more than 190,000 potentially vulnerable instances of Exchange Server exposed to the Internet.

“While Microsoft confirmed the zero-days and issued guidance faster than they have in the past, there are still no patches nearly two weeks out from initial disclosure,” said Caitlin Condon, senior manager of vulnerability research at Rapid7. “Despite high hopes that today’s Patch Tuesday release would contain fixes for the vulnerabilities, Exchange Server is conspicuously missing from the initial list of October 2022 security updates. Microsoft’s recommended rule for blocking known attack patterns has been bypassed multiple times, emphasizing the necessity of a true fix.”

Adobe also released security updates to fix 29 vulnerabilities across a variety of products, including Acrobat and Reader, ColdFusion, Commerce and Magento. Adobe said it is not aware of active attacks against any of these flaws.

For a closer look at the patches released by Microsoft today and indexed by severity and other metrics, check out the always-useful Patch Tuesday roundup from the SANS Internet Storm Center. And it’s not a bad idea to hold off updating for a few days until Microsoft works out any kinks in the updates: AskWoody.com usually has the lowdown on any patches that may be causing problems for Windows users.

As always, please consider backing up your system or at least your important documents and data before applying system updates. And if you run into any problems with these updates, please drop a note about it here in the comments.

Microsoft Patch Tuesday Fixes New Windows Zero-Day; No Patch for Exchange Server Bugs

By Ravie Lakshmanan
Microsoft's Patch Tuesday update for the month of October has addressed a total of 85 security vulnerabilities, including fixes for an actively exploited zero-day flaw in the wild. Of the 85 bugs, 15 are rated Critical, 69 are rated Important, and one is rated Moderate in severity. The update, however, does not include mitigations for the actively exploited ProxyNotShell flaws in Exchange Server

Researchers Detail Windows Zero-Day Vulnerability Patched Last Month

By Ravie Lakshmanan
Details have emerged about a now-patched security flaw in Windows Common Log File System (CLFS) that could be exploited by an attacker to gain elevated permissions on compromised machines. Tracked as CVE-2022-37969 (CVSS score: 7.8), the issue was addressed by Microsoft as part of its Patch Tuesday updates for September 2022, while also noting that it was being actively exploited in the wild. "

Apple megaupdate: Ventura out, iOS and iPad kernel zero-day – act now!

By Paul Ducklin
Ventura hits the market with 112 patches, Catalina's gone missing, and iPhones and iPads get a critical kernel-level zero-day patch...

Apple Releases Patch for New Actively Exploited iOS and iPadOS Zero-Day Vulnerability

By Ravie Lakshmanan
Tech giant Apple on Monday rolled out updates to remediate a zero-day flaw in iOS and iPadOS that it said has been actively exploited in the wild. The weakness, given the identifier CVE-2022-42827, has been described as an out-of-bounds write issue in the Kernel, which could be abused by a rogue application to execute arbitrary code with the highest privileges. Successful exploitation of

Google Issues Urgent Chrome Update to Patch Actively Exploited Zero-Day Vulnerability

By Ravie Lakshmanan
Google on Thursday rolled out emergency fixes to contain an actively exploited zero-day flaw in its Chrome web browser. The vulnerability, tracked as CVE-2022-3723, has been described as a type confusion flaw in the V8 JavaScript engine. Security researchers Jan Vojtěšek, Milánek, and Przemek Gmerek of Avast have been credited with reporting the flaw on October 25, 2022. "Google is aware of

Chrome issues urgent zero-day fix – update now!

By Paul Ducklin
We've said it before/And we'll say it again/It's not *if* you should patch/It's a matter of *when*. (Hint: now!)

The Worst Black Friday and Cyber Monday Scams – And How to Avoid Them

By McAfee

On Black Friday and Cyber Monday, the deals roll out. So do some of the worst Black Friday and Cyber Monday scams. 

Hackers, scammers, and thieves look to cash in this time of year by blending in with the holiday rush, spinning up their own fake shipping notices, phony deals, and even bogus charities that look legitimate at first glance, yet are anything but. Instead, they may be loaded with malware, point you to phishing sites that steal your personal info, or they may simply rip you off.   

Classically, many online scams play on emotions by creating a sense of urgency or even fear. And for the holidays, you can throw stress into that mix as well—the stress of time, money, or even the pressure of finding that hard-to-get gift that seems to be out of stock everywhere. The bad actors out there will tailor their attacks around these feelings, hoping that they’ll catch you with your guard down during this busy time of year. 

”The Five Least Wanted” – Top online shopping scams to avoid 

So while knowing how to spot a great gift at a great price is solid skill to have this time of year, so is the ability to spot a scam. Let’s look at some of the worst ones out there, along with what you can do to steer clear of them. 

1) The fake order scam  

Come this time of year, keeping tabs on all the packages you have in transit can get tricky. You may have an armload of them enroute at any given time, and scammers will look to slip into this mix with phony order confirmations sent to your mailbox or your phone by text. Packed with either an email attachment or a link to a bogus website, they’ll try to get you to download malware or visit a site that attempts to steal your identity.  

These messages can look quite legit, so the best way to keep track of your orders is on the sites where you purchased them. Go directly to those sites rather than clicking on any links or attachments you get. 

2) The phony tracking number scam 

This scam plays out much like the fake order scam, yet in this case the crooks will send a phony package tracking notification, again either as a link or as an attachment. For starters, legitimate retailers won’t send tracking numbers in an attached file. If you see anything like that, it’s surely a scam designed to inject malware onto your device. In the case of a link, the scammers aim to send you to a site that will steal your personal info, just like in the case above.  

Once again, the best way to track your packages is to go to the source. Visit the online store where you made your purchase, open your current orders, and get your package tracking information from there. 

3) The bogus website scam  

A classic scammer move is to “typosquat” phony email addresses and URLs that look awfully close to legitimate addresses of legitimate companies and retailers. So close that you may overlook them. They often appear in phishing emails and instead of leading you to a great deal, these can in fact link you to scam sites that can then lift your login credentials, payment info, or even funds should you try to place an order through them.  

You can avoid these sites by going to the retailer’s site directly. Be skeptical of any links you receive by email, text, or direct message—it’s best to go to the site yourself by manually typing in the legitimate address yourself and look for the deal there.  

4) The hot deal scam  

At the heart of holiday shopping is scarcity. And scarcity is something scammers love. There’s always some super-popular holiday item that’s tough to find, and scammers will spin up phony websites and offers around those items to lure you in. They may use the typosquatting technique mentioned above to pose as a legitimate retailer, or they may set up a site with their own branding to look legitimate on their own (or at least try). Either way, these scams can hurt you in a couple of ways—one, you’ll pay for the goods and never receive them; and two, the scammers will now have your payment info and address, which they can use to commit further fraud. 

If the pricing, availability, or delivery time all look too good to be true for the item in question, it may be a scam designed to harvest your personal info and accounts. Use caution here before you click. If you’re unsure about a product or retailer, read reviews from trusted websites to help see if it’s legitimate. (The Better Business Bureau is a great place to start—more on that in moment.) 

5) The fake charity scam 

In the season of giving, donating to charities in your name or in the name of others makes for a popular holiday gesture. Scammers know this too and will set up phony charities to cash in. Some indications that a phony charity has reached you include an urgent pitch that asks you to “act now.” A proper charity will certainly make their case for a donation, yet they won’t pressure you into it. Moreover, phony charities will outright ask for payment in the form of gift cards, wire transfers (like Western Union), money orders, or even cryptocurrency—because once those funds are sent, they’re nearly impossible to reclaim when you find out you’ve been scammed. 

There are plenty of ways to make donations to legitimate charities, and the U.S. Federal Trade Commission (FTC) has a site full of resources so that you can make your donation truly count 

So, how can I avoid getting scammed on Black Friday and Cyber Monday? 

Some of it takes an eagle eye that can spot these scams as they pop up in your inbox, texts, social media feed, and so on. Yet you have further ways you can keep safe while shopping on Black Friday, Cyber Monday, and any time. 

Stick with known, legitimate retailers online 

This is a great one to start with. Directly typing in the correct address for online stores and retailers is a prime way to avoid scammers online. In the case of retailers that you don’t know much about, the U.S. Better Business Bureau (BBB) asks shoppers to do their research and make sure that retailer has a good reputation. The BBB makes that easier with a listing of retailers you can search simply by typing in their name. 

Look for the lock icon in your browser when you shop 

Secure websites begin their address with “https,” not just “http.” That extra “s” in stands for “secure,” which means that it uses a secure protocol for transmitting sensitive info like passwords, credit card numbers, and the like over the internet. It often appears as a little padlock icon in the address bar of your browser, so double-check for that. If you don’t see that it’s secure, it’s best to avoid making purchases on that website.  

Pay with a credit card instead of your debit card  

In the U.S., the Fair Credit Billing Act offers the public protection against fraudulent charges on credit cards, where citizens can dispute charges over $50 for goods and services that were never delivered or otherwise billed incorrectly. Note that many credit card companies have their own policies that improve upon the Fair Credit Billing Act as well. However, debit cards aren’t afforded the same protection under the Act. Avoid using a debit card while shopping online and use your credit card instead.  

Use two-factor authentication on your accounts  

Two-factor authentication is an extra layer of defense on top of your username and password. It adds in the use of a special one-time-use code to access your account, usually sent to you via email or to your phone by text or a phone call. In all, it combines something you know, like your password, with something you have, like your smartphone. Together, that makes it tougher for a crook to hack your account. If any of your accounts support two-factor authentication, the few extra seconds it takes to set up is more than worth the big boost in protection you’ll get.  

Use a VPN if you’re shopping on public Wi-Fi  

Public Wi-Fi in coffee shops and other public locations can expose your private surfing to prying eyes because those networks are open to all. Using a virtual private network (VPN) encrypts your browsing, shopping, and other internet traffic, thus making it secure from attempts at intercepting your data on public Wi-Fi, such as your passwords and credit card numbers.  

What’s more, a VPN masks your whereabouts and your IP address, plus uses encryption that helps keep your activities private. As a result, companies and data brokers can potentially learn far less about you, your shopping, your travels, your habits, and any other information that they could possibly collect and otherwise profit from. 

Clean up your personal data online 

Yes, it’s true. Your information gets collected, bought, and solid online. In fact, personal information fuels a global data trading economy estimated at $200 billion U.S. dollars a year. Run by data brokers that keep hundreds and even thousands of data points on billions of people, these sites gather, analyze, buy, and sell this information to other companies as well as to advertisers. Likewise, these data brokers may sell this information to bad actors, such as hackers, spammers, and identity thieves who would twist this information for their own purposes. 

Getting your info removed from these sites can seem like a daunting task. (Where do I start, and just how many of these sites are out there?) Our Personal Data Cleanup can help by regularly scanning these high-risk data broker sites for info like your home address, date of birth, and names of relatives. It identifies which sites are selling your data, and depending on your plan, automatically requests removal. 

Protect your identity from identity thieves 

Another place where personal information is bought and sold, stored, and exchanged is the dark web. The problem is that it’s particularly difficult for you to determine what, if any, of your info is on the dark web, stashed away in places where hackers and thieves can get their hands on it. Identity monitoring can help. McAfee’s identity monitoring helps you keep your personal info safe by alerting you if your data is found on the dark web, an average of 10 months before our competitors. 

Monitored info can range anywhere from bank account and credit card numbers to your email addresses and government ID number, depending on your location. If your information gets spotted, you’ll get an alert, along with steps you can take to minimize or even prevent damage if the information hasn’t already been put to illegal use. 

Take advantage of identity protection 

Identity protection through McAfee takes identity monitoring a step further by offering, depending on your location and plan, identity theft coverage for financial losses and expenses due to identity theft, in addition to hands-on help from a recovery professional to help restore your identity—all in addition to the identity monitoring called out above, again depending on your location and plan. 

Monitor your credit 

Keeping an eye on your bills and statements as they come in can help you spot unusual activity on your accounts. A credit monitoring service can do that one better by keeping daily tabs on your credit report. While you can do this manually, there are limitations. First, it involves logging into each bureau and doing some digging of your own. Second, there are limitations as to how many free credit reports you can pull each year. A service does that for you and without impacting your credit score. 

Depending on your location and plan, McAfee’s credit monitoring allows you to look after your credit score and the accounts within it to see fluctuations and help you identify unusual activity, all in one place, checking daily for signs of identity theft. 

Use protection while you shop  

A complete suite of online protection software like McAfee+ can offer layers of extra security while you shop. In addition to the VPN, identity, credit monitoring, and other features mentioned above, it includes web browser protection that can block malicious and suspicious links that could lead you down the road to malware or a phishing scam—along with a password manager that can create strong, unique passwords and store them securely as well. Taken together, McAfee+ offers all-in-one online protection for your identity, privacy, and security that can keep you far safer when you shop online—and as you spend your time online in general. 

What should I do if I fall victim to a Black Friday or Cyber Monday scam? 

Even if you take the proper precautions the unexpected can happen. Whether it’s a scam, an identity crime, or flat-out theft, there are steps you can take right away to help minimize the damage. 

The first bit of advice is to take a deep breath and get right to work on recovery. From there, you can take the following steps: 

1. Notify the companies involved 

Whether you spot a curious charge on your bank statement, discover potentially a fraudulent account when you check credit report, or when you get an alert from your monitoring service, let the bank or organization involved know you suspect fraud or theft. With a visit to their website, you can track down the appropriate number to call and get the investigation process started. 

2. File a police report 

Some businesses will require you to file a local police report and acquire a case number to complete your claim. Beyond that, filing a report is a good idea in itself. Identity theft is still theft and reporting it provides an official record of the incident. Should your case of identity theft lead to someone impersonating you or committing a crime in your name, filing a police report right away can help clear your name down the road. Be sure to save any evidence you have, like statements or documents that are associated with the theft. They can help clean up your record as well. 

3. Contact your governmental anti-fraud or trade organization 

In the U.S., the identity theft website from the Federal Trade Commission (FTC) is a fantastic resource should you find yourself in need. In addition to keeping records of the theft, the FTC can provide you with a step-by-step recovery plan—and even walk you through the process if you create an account with them. Additionally, reporting theft to the FTC can prove helpful if debtors come knocking to collect on any bogus charges in your name. With a copy of your report, you can ask debtors to stop. 

4. Put on a credit freeze or lock 

An instance of identity fraud or theft, suspected or otherwise, is a good time to review your options for a credit freeze or lock. As mentioned earlier, see what the credit bureaus in your region offer, along with the terms and conditions of each. With the right decision, a freeze or lock can help minimize and prevent further harm. 

5. Continue to monitor 

Strongly consider using a monitoring service like the one we described earlier to help you continue to keep tabs on your identity. The unfortunate fact of identity theft and fraud is that it can mark the start of a long, drawn-out affair. One instance of theft can possibly lead to another, so even what may appear to be an isolated bad charge on your credit card calls for keeping an eye on your identity all around. Many of the tools you would use up to this point still apply, such as checking up on your credit reports, maintaining fraud alerts as needed, and reviewing your accounts closely—along with utilizing an identity monitoring service. 

6. Work with a recovery pro 

A recovery service can help you clean up your credit in the wake of fraud or theft, all by working on your behalf. Given the time, money, and stress that can come along with setting your financial record straight, leaning on the expertise of a professional can provide you with much-needed relief on several counts. 

Take an extra moment to spot those Black Friday and Cyber Monday scams  

Just as it’s always been, hackers, scammers, and thieves want to ruin a good thing. In this case, it’s your spirit of giving and sharing in the holiday season. Yet with this list of top scams and ways you can avoid them, you can keep bad actors like them at bay. Remember, they’re counting on you to be in a hurry this time of year, and maybe a bit stressed and a little disorganized to boot. Take your time while shopping out there and keep an eye out for their tricks. That extra moment can save you far more time and money than you may think. 

The post The Worst Black Friday and Cyber Monday Scams – And How to Avoid Them appeared first on McAfee Blog.

Microsoft Warns of Uptick in Hackers Leveraging Publicly-Disclosed 0-Day Vulnerabilities

By Ravie Lakshmanan
Microsoft is warning of an uptick among nation-state and criminal actors increasingly leveraging publicly-disclosed zero-day vulnerabilities for breaching target environments. The tech giant, in its 114-page Digital Defense Report, said it has "observed a reduction in the time between the announcement of a vulnerability and the commoditization of that vulnerability," making it imperative that

Patch Tuesday, November 2022 Election Edition

By BrianKrebs

Let’s face it: Having “2022 election” in the headline above is probably the only reason anyone might read this story today. Still, while most of us here in the United States are anxiously awaiting the results of how well we’ve patched our Democracy, it seems fitting that Microsoft Corp. today released gobs of security patches for its ubiquitous Windows operating systems. November’s patch batch includes fixes for a whopping six zero-day security vulnerabilities that miscreants and malware are already exploiting in the wild.

Probably the scariest of the zero-day flaws is CVE-2022-41128, a “critical” weakness in the Windows scripting languages that could be used to foist malicious software on vulnerable users who do nothing more than browse to a hacked or malicious site that exploits the weakness. Microsoft credits Google with reporting the vulnerability, which earned a CVSS score of 8.8.

CVE-2022-41073 is a zero-day flaw in the Windows Print Spooler, a Windows component that Microsoft has patched mightily over the past year. Kevin Breen, director of cyber threat research at Immersive Labs, noted that the print spooler has been a popular target for vulnerabilities in the last 12 months, with this marking the 9th patch.

The third zero-day Microsoft patched this month is CVE-2022-41125, which is an “elevation of privilege” vulnerability in the Windows Cryptography API: Next Generation (CNG) Key Isolation Service, a service for isolating private keys. Satnam Narang, senior staff research engineer at Tenable, said exploitation of this vulnerability could grant an attacker SYSTEM privileges.

The fourth zero-day, CVE-2022-41091, was previously disclosed and widely reported on in October. It is a Security Feature Bypass of “Windows Mark of the Web” – a mechanism meant to flag files that have come from an untrusted source.

The other two zero-day bugs Microsoft patched this month were for vulnerabilities being exploited in Exchange Server. News that these two Exchange flaws were being exploited in the wild surfaced in late September 2022, and many were surprised when Microsoft let October’s Patch Tuesday sail by without issuing official patches for them (the company instead issued mitigation instructions that it was forced to revise multiple times). Today’s patch batch addresses both issues.

Greg Wiseman, product manager at Rapid7, said the Exchange flaw CVE-2022-41040 is a “critical” elevation of privilege vulnerability, and CVE-2022-41082 is considered Important, allowing Remote Code Execution (RCE) when PowerShell is accessible to the attacker.

“Both vulnerabilities have been exploited in the wild,” Wiseman said. “Four other CVEs affecting Exchange Server have also been addressed this month. Three are rated as Important, and CVE-2022-41080 is another privilege escalation vulnerability considered Critical. Customers are advised to update their Exchange Server systems immediately, regardless of whether any previously recommended mitigation steps have been applied. The mitigation rules are no longer recommended once systems have been patched.”

Adobe usually issues security updates for its products on Patch Tuesday, but it did not this month. For a closer look at the patches released by Microsoft today and indexed by severity and other metrics, check out the always-useful Patch Tuesday roundup from the SANS Internet Storm Center. And it’s not a bad idea to hold off updating for a few days until Microsoft works out any kinks in the updates: AskWoody.com usually has the lowdown on any patches that may be causing problems for Windows users.

As always, please consider backing up your system or at least your important documents and data before applying system updates. And if you run into any problems with these updates, please drop a note about it here in the comments.

Install Latest Windows Update ASAP! Patches Issued for 6 Actively Exploited Zero-Days

By Ravie Lakshmanan
Microsoft's latest round of monthly security updates has been released with fixes for 68 vulnerabilities spanning its software portfolio, including patches for six actively exploited zero-days. 12 of the issues are rated Critical, two are rated High, and 55 are rated Important in severity. This also includes the weaknesses that were closed out by OpenSSL the previous week. Also separately 

S3 Ep108: You hid THREE BILLION dollars in a popcorn tin?

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Top Cyber Threats Facing E-Commerce Sites This Holiday Season

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Chrome fixes 8th zero-day of 2022 – check your version now (Edge too!)

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Unwrapping Some of the Holiday Season’s Biggest Scams

By McAfee

Even with the holidays in full swing, scammers won’t let up. In fact, it’s high time for some of their nastiest cons as people travel, donate to charities, and simply try to enjoy their time with friends and family. 

Unfortunate as it is, scammers see this time of year as a tremendous opportunity to profit. While people focus giving to others, they focus on taking, propping up all manner of scams that use the holidays as a disguise. So as people move quickly about their day, perhaps with a touch of holiday stress in the mix, they hope to catch people off their guard with scams that wrap themselves in holiday trappings. 

Yet once you know what to look for, they’re relatively easy to spot. The same scams roll out every year, sometimes changing in appearance yet remaining the same in substance. With a sharp eye, you can steer clear of them. 

Watch out for these online scams this holiday season 

1. Shopping scams 

With Black Friday and Cyber Monday in the books, we can look forward to what’s next—a wave of post-holiday sales events that will likewise draw in millions of online shoppers. And just like those other big shopping days, bad actors will roll out a host of scams aimed at unsuspecting shoppers. Shopping scams take on several forms, which makes this a topic unto itself, one that we cover thoroughly in our Black Friday & Cyber Monday shopping scams blog. It’s worth a read if you haven’t done so already, as digs into the details of these scams and shows how you can avoid them.  

However, the high-level advice for avoiding shopping scams is this: keep your eyes open. Deals that look too good to be true likely are, and shopping with retailers you haven’t heard of before requires a little bit of research to determine if their track record is clean. In the U.S., you can turn to the Better Business Bureau (BBB) for help with a listing of retailers you can search simply by typing in their names. You can also use https://whois.domaintools.com to look up the web address of the shopping site you want to research. There you can see its history and see when it was registered. A site that was registered only recently may be far less reputable than one that’s been registered for some time. 

2. Tech support scams  

Plenty of new tech makes its way into our homes during the holiday season. And some of that tech can be a little challenging to set up. Be careful when you search for help online. Many scammers will establish phony tech support sites that aim to steal funds and credit card information. Go directly to the product manufacturer for help. Often, manufacturers will offer free support as part of the product warranty, so if you see a site advertising support for a fee, that could be a sign of a scam. 

Likewise, scammers will reach out to you themselves. Whether through links from unsolicited emails, pop-up ads from risky sites, or by spammy phone calls, these scammers will pose as tech support from reputable brands. From there, they’ll falsely inform you that there’s something urgently wrong with your device and that you need to get it fixed right now—for a fee. Ignore these messages and don’t click on any links or attachments. Again, if you have concerns about your device, contact the manufacturer directly. 

3. Travel scams 

With the holidays comes travel, along with all the online booking and ticketing involved. Scammers will do their part to cash in here as well. Travel scams may include bogus emails that pose as reputable travel sites telling you something’s wrong with your booking. Clicking a link takes you to a similarly bogus site that asks for your credit card information to update the booking—which then passes it along to the scammer so they can rack up charges in your name. Other travel scams involve ads for cut-rate lodging, tours, airfare, and the like, all of which are served up on a phony website that only exists to steal credit card numbers and other personal information. 

Some of these scams can look quite genuine, even though they’re not. They’ll use cleverly disguised web addresses that look legitimate, but aren’t, so don’t click any links. If you receive notice about an issue with your holiday travel, contact the company directly to follow up. Also, be wary of ads with unusually deep discounts or that promise availability in an otherwise busy season or time. These could be scams, so stick with reputable booking sites or with the websites maintained by hotels and travel providers themselves. 

4. Fake charity scams 

Donations to an organization or cause that’s close to someone’s heart make for a great holiday gift, just as they offer you a way to give back during the holiday season. And you guessed it, scammers will take advantage of this too. They’ll set up phony charities and apply tactics that pressure you into giving. As with so many scams out there, any time an email, text, direct message, or site urges you into immediate action—take pause. Research the charity. See how long they’ve been in operation, how they put their funds to work, and who truly benefits from them.  

Likewise, note that there some charities pass along more money to their beneficiaries than others. As a general rule of thumb, most reputable organizations only keep 25% or less of their funds for operations, while some less-than-reputable organizations keep up to 95% of funds, leaving only 5% for advancing the cause they advocate. In the U.S., the Federal Trade Commission (FTC) has a site full of resources so that you can make your donation truly count. Resources like Charity Watch and Charity Navigator, along with the BBB’s Wise Giving Alliance can also help you identify the best charities. 

5. Online betting scams 

The holidays also mean a flight of big-time sporting events, and with the advent of online betting in many regions scammers want to cash in. This scam works quite like shopping scams, where bad actors will set up online betting sites that look legitimate. They’ll take your bet, but if you win, they won’t pay out. Per the U.S. Better Business Bureau (BBB), the scam plays out like this: 

“You place a bet, and, at first, everything seems normal. But as soon as you try to cash out your winnings, you find you can’t withdraw a cent. Scammers will make up various excuses. For example, they may claim technical issues or insist on additional identity verification. In other cases, they may require you to deposit even more money before you can withdraw your winnings. Whatever you do, you’ll never be able to get your money off the site. And any personal information you shared is now in the hands of scam artists.” 

You can avoid these sites rather easily. Stick with the online betting sites that are approved by your regional gambling commission. Even so, be sure to read the fine print on any promo offers that these sites advertise because even legitimate betting sites can freeze accounts and the funds associated with them based on their terms and conditions. 

Further protection from scams 

A complete suite of online protection software, such as McAfee+ Ultimate can offer layers of extra security. In addition to more private and secure time online with a VPN, identity monitoring, and password management, it includes web browser protection that can block malicious and suspicious links that could lead you down the road to malware or a phishing scam—which antivirus protection can’t do alone. Additionally, we offer $1M identity theft coverage and support from a recovery pro, just in case. 

And because scammers use personal information such as email addresses and cell phone numbers to wage their attacks, other features like our  Personal Data Cleanup service can scan high-risk data broker sites for your personal information and then help you remove it, which can help reduce spam, phishing attacks, and deny bad actors the information they need to commit identity theft. 

Scammers love a good thing—and will twist it for their own benefit. 

That’s why they enjoy the holidays so much. With all our giving, travel, and charity in play, it’s prime time for their scams. Yet a little insight into their cons, along with some knowledge as to how they play out, you can avoid them.  

Remember that they’re playing into the hustle and bustle of the season and that they’re counting on you to lower your guard more than you might during other times of the year. Keep an eye open for the signs, do a little research when it’s called for, and stick with reputable stores, charities, and online services. With a thoughtful pause and a second look, you can spare yourself the grief of a scam and fully enjoy your holidays. 

The post Unwrapping Some of the Holiday Season’s Biggest Scams appeared first on McAfee Blog.

Google Accuses Spanish Spyware Vendor of Exploiting Chrome, Firefox, & Windows Zero-Days

By Ravie Lakshmanan
A Barcelona-based surveillanceware vendor named Variston IT is said to have surreptitiously planted spyware on targeted devices by exploiting several zero-day flaws in Google Chrome, Mozilla Firefox, and Windows, some of which date back to December 2018. "Their Heliconia framework exploits n-day vulnerabilities in Chrome, Firefox, and Microsoft Defender, and provides all the tools necessary to
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