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Meta Warns of 8 Spyware Firms Targeting iOS, Android, and Windows Devices

By Newsroom
Meta Platforms said it took a series of steps to curtail malicious activity from eight different firms based in Italy, Spain, and the United Arab Emirates (U.A.E.) operating in the surveillance-for-hire industry. The findings are part of its Adversarial Threat Report for the fourth quarter of 2023. The spyware targeted iOS, Android, and Windows devices. "Their various malware included

Critical Exchange Server Flaw (CVE-2024-21410) Under Active Exploitation

By Newsroom
Microsoft on Wednesday acknowledged that a newly disclosed critical security flaw in Exchange Server has been actively exploited in the wild, a day after it released fixes for the vulnerability as part of its Patch Tuesday updates. Tracked as CVE-2024-21410 (CVSS score: 9.8), the issue has been described as a case of privilege escalation impacting the Exchange Server. "An attacker

DarkMe Malware Targets Traders Using Microsoft SmartScreen Zero-Day Vulnerability

By Newsroom
A newly disclosed security flaw in the Microsoft Defender SmartScreen has been exploited as a zero-day by an advanced persistent threat actor called Water Hydra (aka DarkCasino) targeting financial market traders. Trend Micro, which began tracking the campaign in late December 2023, said it entails the exploitation of CVE-2024-21412, a security bypass vulnerability related to Internet

Microsoft Rolls Out Patches for 73 Flaws, Including 2 Windows Zero-Days

By Newsroom
Microsoft has released patches to address 73 security flaws spanning its software lineup as part of its Patch Tuesday updates for February 2024, including two zero-days that have come under active exploitation. Of the 73 vulnerabilities, 5 are rated Critical, 65 are rated Important, and three and rated Moderate in severity. This is in addition to 24 flaws that have been fixed

Fat Patch Tuesday, February 2024 Edition

By BrianKrebs

Microsoft Corp. today pushed software updates to plug more than 70 security holes in its Windows operating systems and related products, including two zero-day vulnerabilities that are already being exploited in active attacks.

Top of the heap on this Fat Patch Tuesday is CVE-2024-21412, a “security feature bypass” in the way Windows handles Internet Shortcut Files that Microsoft says is being targeted in active exploits. Redmond’s advisory for this bug says an attacker would need to convince or trick a user into opening a malicious shortcut file.

Researchers at Trend Micro have tied the ongoing exploitation of CVE-2024-21412 to an advanced persistent threat group dubbed “Water Hydra,” which they say has being using the vulnerability to execute a malicious Microsoft Installer File (.msi) that in turn unloads a remote access trojan (RAT) onto infected Windows systems.

The other zero-day flaw is CVE-2024-21351, another security feature bypass — this one in the built-in Windows SmartScreen component that tries to screen out potentially malicious files downloaded from the Web. Kevin Breen at Immersive Labs says it’s important to note that this vulnerability alone is not enough for an attacker to compromise a user’s workstation, and instead would likely be used in conjunction with something like a spear phishing attack that delivers a malicious file.

Satnam Narang, senior staff research engineer at Tenable, said this is the fifth vulnerability in Windows SmartScreen patched since 2022 and all five have been exploited in the wild as zero-days. They include CVE-2022-44698 in December 2022, CVE-2023-24880 in March 2023, CVE-2023-32049 in July 2023 and CVE-2023-36025 in November 2023.

Narang called special attention to CVE-2024-21410, an “elevation of privilege” bug in Microsoft Exchange Server that Microsoft says is likely to be exploited by attackers. Attacks on this flaw would lead to the disclosure of NTLM hashes, which could be leveraged as part of an NTLM relay or “pass the hash” attack, which lets an attacker masquerade as a legitimate user without ever having to log in.

“We know that flaws that can disclose sensitive information like NTLM hashes are very valuable to attackers,” Narang said. “A Russian-based threat actor leveraged a similar vulnerability to carry out attacks – CVE-2023-23397 is an Elevation of Privilege vulnerability in Microsoft Outlook patched in March 2023.”

Microsoft notes that prior to its Exchange Server 2019 Cumulative Update 14 (CU14), a security feature called Extended Protection for Authentication (EPA), which provides NTLM credential relay protections, was not enabled by default.

“Going forward, CU14 enables this by default on Exchange servers, which is why it is important to upgrade,” Narang said.

Rapid7’s lead software engineer Adam Barnett highlighted CVE-2024-21413, a critical remote code execution bug in Microsoft Office that could be exploited just by viewing a specially-crafted message in the Outlook Preview pane.

“Microsoft Office typically shields users from a variety of attacks by opening files with Mark of the Web in Protected View, which means Office will render the document without fetching potentially malicious external resources,” Barnett said. “CVE-2024-21413 is a critical RCE vulnerability in Office which allows an attacker to cause a file to open in editing mode as though the user had agreed to trust the file.”

Barnett stressed that administrators responsible for Office 2016 installations who apply patches outside of Microsoft Update should note the advisory lists no fewer than five separate patches which must be installed to achieve remediation of CVE-2024-21413; individual update knowledge base (KB) articles further note that partially-patched Office installations will be blocked from starting until the correct combination of patches has been installed.

It’s a good idea for Windows end-users to stay current with security updates from Microsoft, which can quickly pile up otherwise. That doesn’t mean you have to install them on Patch Tuesday. Indeed, waiting a day or three before updating is a sane response, given that sometimes updates go awry and usually within a few days Microsoft has fixed any issues with its patches. It’s also smart to back up your data and/or image your Windows drive before applying new updates.

For a more detailed breakdown of the individual flaws addressed by Microsoft today, check out the SANS Internet Storm Center’s list. For those admins responsible for maintaining larger Windows environments, it often pays to keep an eye on Askwoody.com, which frequently points out when specific Microsoft updates are creating problems for a number of users.

Fortinet Warns of Critical FortiOS SSL VPN Flaw Likely Under Active Exploitation

By Newsroom
Fortinet has disclosed a new critical security flaw in FortiOS SSL VPN that it said is likely being exploited in the wild. The vulnerability, CVE-2024-21762 (CVSS score: 9.6), allows for the execution of arbitrary code and commands. "An out-of-bounds write vulnerability [CWE-787] in FortiOS may allow a remote unauthenticated attacker to execute arbitrary code or command via specially

Warning: New Ivanti Auth Bypass Flaw Affects Connect Secure and ZTA Gateways

By Newsroom
Ivanti has alerted customers of yet another high-severity security flaw in its Connect Secure, Policy Secure, and ZTA gateway devices that could allow attackers to bypass authentication. The issue, tracked as CVE-2024-22024, is rated 8.3 out of 10 on the CVSS scoring system. "An XML external entity or XXE vulnerability in the SAML component of Ivanti Connect Secure (9.x, 22.x), Ivanti

Global Coalition and Tech Giants Unite Against Commercial Spyware Abuse

By Newsroom
A coalition of dozens of countries, including France, the U.K., and the U.S., along with tech companies such as Google, MDSec, Meta, and Microsoft, have signed a joint agreement to curb the abuse of commercial spyware to commit human rights abuses. The initiative, dubbed the Pall Mall Process, aims to tackle the proliferation and irresponsible use of commercial cyber intrusion tools by

Chinese Hackers Exploited FortiGate Flaw to Breach Dutch Military Network

By Newsroom
Chinese state-backed hackers broke into a computer network that's used by the Dutch armed forces by targeting Fortinet FortiGate devices. "This [computer network] was used for unclassified research and development (R&D)," the Dutch Military Intelligence and Security Service (MIVD) said in a statement. "Because this system was self-contained, it did not lead to any damage to the

Warning: New Malware Emerges in Attacks Exploiting Ivanti VPN Vulnerabilities

By Newsroom
Google-owned Mandiant said it identified new malware employed by a China-nexus espionage threat actor known as UNC5221 and other threat groups during post-exploitation activity targeting Ivanti Connect Secure VPN and Policy Secure devices. This includes custom web shells such as BUSHWALK, CHAINLINE, FRAMESTING, and a variant of LIGHTWIRE. "CHAINLINE is a Python web shell backdoor that is

New CherryLoader Malware Mimics CherryTree to Deploy PrivEsc Exploits

By Newsroom
A new Go-based malware loader called CherryLoader has been discovered by threat hunters in the wild to deliver additional payloads onto compromised hosts for follow-on exploitation. Arctic Wolf Labs, which discovered the new attack tool in two recent intrusions, said the loader's icon and name masquerades as the legitimate CherryTree note-taking application to dupe potential victims

U.S. Cybersecurity Agency Warns of Actively Exploited Ivanti EPMM Vulnerability

By Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a now-patched critical flaw impacting Ivanti Endpoint Manager Mobile (EPMM) and MobileIron Core to its Known Exploited Vulnerabilities (KEV) catalog, stating it's being actively exploited in the wild. The vulnerability in question is CVE-2023-35082 (CVSS score: 9.8), an authentication bypass

Zero-Day Alert: Update Chrome Now to Fix New Actively Exploited Vulnerability

By Newsroom
Google on Tuesday released updates to fix four security issues in its Chrome browser, including an actively exploited zero-day flaw. The issue, tracked as CVE-2024-0519, concerns an out-of-bounds memory access in the V8 JavaScript and WebAssembly engine, which can be weaponized by threat actors to trigger a crash. <!-- adsense --> "By reading out-of-bounds memory, an attacker might be able to

Nation-State Actors Weaponize Ivanti VPN Zero-Days, Deploying 5 Malware Families

By Newsroom
As many as five different malware families were deployed by suspected nation-state actors as part of post-exploitation activities leveraging&nbsp;two zero-day vulnerabilities&nbsp;in Ivanti Connect Secure (ICS) VPN appliances since early December 2023. "These families allow the threat actors to circumvent authentication and provide backdoor access to these devices," Mandiant&nbsp;said&nbsp;in an

Act Now: CISA Flags Active Exploitation of Microsoft SharePoint Vulnerability

By Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has&nbsp;added&nbsp;a critical security vulnerability impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The issue, tracked as&nbsp;CVE-2023-29357&nbsp;(CVSS score: 9.8), is a privilege escalation flaw that could be exploited by an attacker to gain

Chinese Hackers Exploit Zero-Day Flaws in Ivanti Connect Secure and Policy Secure

By Newsroom
A pair of zero-day flaws identified in Ivanti Connect Secure (ICS) and Policy Secure have been chained by suspected China-linked nation-state actors to breach less than 10 customers. Cybersecurity firm Volexity, which&nbsp;identified&nbsp;the activity on the network of one of its customers in the second week of December 2023, attributed it to a hacking group it tracks under the name&nbsp;UTA0178

Microsoft's January 2024 Windows Update Patches 48 New Vulnerabilities

By Newsroom
Microsoft has addressed a total of&nbsp;48 security flaws&nbsp;spanning its software as part of its Patch Tuesday updates for January 2024. Of the 48 bugs, two are rated Critical and 46 are rated Important in severity. There is no evidence that any of the issues are publicly known or under active attack at the time of release, making it the second consecutive Patch Tuesday with no zero-days. The

CISA Flags 6 Vulnerabilities - Apple, Apache, Adobe, D-Link, Joomla Under Attack

By Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has&nbsp;added&nbsp;six security flaws to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. This includes&nbsp;CVE-2023-27524&nbsp;(CVSS score: 8.9), a high-severity vulnerability impacting the Apache Superset open-source data visualization software that could enable remote code execution.

Alert: Ivanti Releases Patch for Critical Vulnerability in Endpoint Manager Solution

By Newsroom
Ivanti has released security updates to address a critical flaw impacting its Endpoint Manager (EPM) solution that, if successfully exploited, could result in remote code execution (RCE) on susceptible servers. Tracked as CVE-2023-39336, the vulnerability has been rated 9.6 out of 10 on the CVSS scoring system. The shortcoming impacts EPM 2021 and EPM 2022 prior to SU5. “If exploited, an

Most Sophisticated iPhone Hack Ever Exploited Apple's Hidden Hardware Feature

By Newsroom
The&nbsp;Operation Triangulation&nbsp;spyware attacks targeting Apple iOS devices leveraged never-before-seen exploits that made it possible to even bypass pivotal hardware-based security protections erected by the company. Russian cybersecurity firm Kaspersky, which&nbsp;discovered&nbsp;the&nbsp;campaign&nbsp;at the beginning of 2023 after becoming one of the targets,&nbsp;described&nbsp;it as

Critical Zero-Day in Apache OfBiz ERP System Exposes Businesses to Attack

By Newsroom
A new zero-day security flaw has been discovered in Apache OfBiz, an open-source Enterprise Resource Planning (ERP) system that could be exploited to bypass authentication protections. The vulnerability, tracked as&nbsp;CVE-2023-51467, resides in the login functionality and is the result of an incomplete patch for another critical vulnerability (CVE-2023-49070, CVSS score: 9.8) that was released

Chinese Hackers Exploited New Zero-Day in Barracuda's ESG Appliances

By Newsroom
Barracuda has revealed that Chinese threat actors exploited a new zero-day in its Email Security Gateway (ESG) appliances to deploy backdoors on a "limited number" of devices. Tracked as&nbsp;CVE-2023-7102, the issue relates to a case of&nbsp;arbitrary code execution&nbsp;that resides within a third-party and open-source library named Spreadsheet::ParseExcel that's used by the Amavis scanner

Decoy Microsoft Word Documents Used to Deliver Nim-Based Malware

By Newsroom
A new phishing campaign is leveraging decoy Microsoft Word documents as bait to deliver a backdoor written in the&nbsp;Nim programming language. "Malware written in uncommon programming languages puts the security community at a disadvantage as researchers and reverse engineers' unfamiliarity can hamper their investigation," Netskope researchers Ghanashyam Satpathy and Jan Michael Alcantara&nbsp

Experts Detail Multi-Million Dollar Licensing Model of Predator Spyware

By Newsroom
A new analysis of the sophisticated commercial spyware called Predator has revealed that its ability to persist between reboots is offered as an "add-on feature" and that it depends on the licensing options opted by a customer. "In 2021, Predator spyware couldn't survive a reboot on the infected Android system (it had it on iOS)," Cisco Talos researchers Mike Gentile, Asheer Malhotra, and Vitor

Urgent: New Chrome Zero-Day Vulnerability Exploited in the Wild - Update ASAP

By Newsroom
Google has rolled out security updates for the Chrome web browser to address a high-severity zero-day flaw that it said has been exploited in the wild. The vulnerability, assigned the CVE identifier&nbsp;CVE-2023-7024, has been described as a&nbsp;heap-based buffer overflow bug&nbsp;in the WebRTC framework that could be exploited to result in program crashes or arbitrary code execution. Clément

Microsoft's Final 2023 Patch Tuesday: 33 Flaws Fixed, Including 4 Critical

By Newsroom
Microsoft released its final set of Patch Tuesday updates for 2023, closing out&nbsp;33 flaws&nbsp;in its software, making it one of the lightest releases in recent years. Of the 33 shortcomings, four are rated Critical and 29 are rated Important in severity. The fixes are in addition to&nbsp;18 flaws&nbsp;Microsoft addressed in its Chromium-based Edge browser since the release of&nbsp;Patch

Microsoft Patch Tuesday, December 2023 Edition

By BrianKrebs

The final Patch Tuesday of 2023 is upon us, with Microsoft Corp. today releasing fixes for a relatively small number of security holes in its Windows operating systems and other software. Even more unusual, there are no known “zero-day” threats targeting any of the vulnerabilities in December’s patch batch. Still, four of the updates pushed out today address “critical” vulnerabilities that Microsoft says can be exploited by malware or malcontents to seize complete control over a vulnerable Windows device with little or no help from users.

Among the critical bugs quashed this month is CVE-2023-35628, a weakness present in Windows 10 and later versions, as well as Microsoft Server 2008 and later. Kevin Breen, senior director of threat research at Immersive Labs, said the flaw affects MSHTML, a core component of Windows that is used to render browser-based content. Breen notes that MSHTML also can be found in a number of Microsoft applications, including Office, Outlook, Skype and Teams.

“In the worst-case scenario, Microsoft suggests that simply receiving an email would be enough to trigger the vulnerability and give an attacker code execution on the target machine without any user interaction like opening or interacting with the contents,” Breen said.

Another critical flaw that probably deserves priority patching is CVE-2023-35641, a remote code execution weakness in a built-in Windows feature called the Internet Connection Sharing (ICS) service that lets multiple devices share an Internet connection. While CVE-2023-35641 earned a high vulnerability severity score (a CVSS rating of 8.8), the threat from this flaw may be limited somewhat because an attacker would need to be on the same network as the target. Also, while ICS is present in all versions of Windows since Windows 7, it is not on by default (although some applications may turn it on).

Satnam Narang, senior staff research engineer at Tenable, notes that a number of the non-critical patches released today were identified by Microsoft as “more likely to be exploited.” For example, CVE-2023-35636, which Microsoft says is an information disclosure vulnerability in Outlook. An attacker could exploit this flaw by convincing a potential victim to open a specially crafted file delivered via email or hosted on a malicious website.

Narang said what makes this one stand out is that exploitation of this flaw would lead to the disclosure of NTLM hashes, which could be leveraged as part of an NTLM relay or “pass the hash” attack, which lets an attacker masquerade as a legitimate user without ever having to log in.

”It is reminiscent of CVE-2023-23397, an elevation of privilege vulnerability in Microsoft Outlook that was exploited in the wild as a zero day and patched in the March 2023 Patch Tuesday release,” Narang said. “However, unlike CVE-2023-23397, CVE-2023-35636 is not exploitable via Microsoft’s Preview Pane, which lowers the severity of this flaw.”

As usual, the SANS Internet Storm Center has a good roundup on all of the patches released today and indexed by severity. Windows users, please consider backing up your data and/or imaging your system before applying any updates. And feel free to sound off in the comments if you experience any difficulties as a result of these patches.

Apple Releases Security Updates to Patch Critical iOS and macOS Security Flaws

By Newsroom
Apple on Monday released&nbsp;security patches&nbsp;for iOS, iPadOS, macOS, tvOS, watchOS, and Safari web browser to address multiple security flaws, in addition to backporting fixes for two recently disclosed zero-days to older devices. This includes updates for&nbsp;12 security vulnerabilities&nbsp;in iOS and iPadOS spanning AVEVideoEncoder, ExtensionKit, Find My, ImageIO, Kernel, Safari

Hackers Exploited ColdFusion Vulnerability to Breach Federal Agency Servers

By Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned of active exploitation of a&nbsp;high-severity Adobe ColdFusion vulnerability&nbsp;by unidentified threat actors to gain initial access to government servers. "The vulnerability in ColdFusion (CVE-2023-26360) presents as an improper access control issue and exploitation of this CVE can result in arbitrary code execution,"

Zero-Day Alert: Google Chrome Under Active Attack, Exploiting New Vulnerability

By Newsroom
Google has rolled out security updates to fix seven security issues in its Chrome browser, including a zero-day that has come under active exploitation in the wild. Tracked as&nbsp;CVE-2023-6345, the high-severity vulnerability has been described as an integer overflow bug in Skia, an open source 2D graphics library. Benoît Sevens and Clément Lecigne of Google's Threat Analysis Group (TAG) have

How to Handle Retail SaaS Security on Cyber Monday

By The Hacker News
If forecasters are right, over the course of today, consumers will spend&nbsp;$13.7 billion. Just about every click, sale, and engagement will be captured by a CRM platform. Inventory applications will trigger automated re-orders; communication tools will send automated email and text messages confirming sales and sharing shipping information.&nbsp; SaaS applications supporting retail efforts

Mirai-based Botnet Exploiting Zero-Day Bugs in Routers and NVRs for Massive DDoS Attacks

By Newsroom
An active malware campaign is leveraging two zero-day vulnerabilities with remote code execution (RCE) functionality to rope routers and video recorders into a Mirai-based distributed denial-of-service (DDoS) botnet. “The payload targets routers and network video recorder (NVR) devices with default admin credentials and installs Mirai variants when successful,” Akamai said in an advisory

CISA Adds Three Security Flaws with Active Exploitation to KEV Catalog

By Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added three security flaws to its Known Exploited Vulnerabilities (KEV) catalog based on evidence of active exploitation in the wild. The vulnerabilities are as follows - CVE-2023-36584 (CVSS score: 5.4) - Microsoft Windows Mark-of-the-Web (MotW) Security Feature Bypass Vulnerability CVE-2023-1671 (CVSS score: 9.8) -

Zero-Day Flaw in Zimbra Email Software Exploited by Four Hacker Groups

By Newsroom
A zero-day flaw in the Zimbra Collaboration email software was exploited by four different groups in real-world attacks to pilfer email data, user credentials, and authentication tokens. "Most of this activity occurred after the initial fix became public on GitHub," Google Threat Analysis Group (TAG) said in a report shared with The Hacker News. The flaw, tracked as CVE-2023-37580 (CVSS score:

Experts Uncover DarkCasino: New Emerging APT Threat Exploiting WinRAR Flaw

By Newsroom
A hacking group that leveraged a recently disclosed security flaw in the WinRAR software as a zero-day has now been categorized as an entirely new advanced persistent threat (APT). Cybersecurity company NSFOCUS has described DarkCasino as an "economically motivated" actor that first came to light in 2021. "DarkCasino is an APT threat actor with strong technical and learning ability, who is good

Alert: Microsoft Releases Patch Updates for 5 New Zero-Day Vulnerabilities

By Newsroom
Microsoft has released fixes to address 63 security bugs in its software for the month of November 2023, including three vulnerabilities that have come under active exploitation in the wild. Of the 63 flaws, three are rated Critical, 56 are rated Important, and four are rated Moderate in severity. Two of them have been listed as publicly known at the time of the release. The updates are in

Microsoft Patch Tuesday, November 2023 Edition

By BrianKrebs

Microsoft today released updates to fix more than five dozen security holes in its Windows operating systems and related software, including three “zero day” vulnerabilities that Microsoft warns are already being exploited in active attacks.

The zero-day threats targeting Microsoft this month include CVE-2023-36025, a weakness that allows malicious content to bypass the Windows SmartScreen Security feature. SmartScreen is a built-in Windows component that tries to detect and block malicious websites and files. Microsoft’s security advisory for this flaw says attackers could exploit it by getting a Windows user to click on a booby-trapped link to a shortcut file.

Kevin Breen, senior director of threat research at Immersive Labs, said emails with .url attachments or logs with processes spawning from .url files “should be a high priority for threat hunters given the active exploitation of this vulnerability in the wild.”

The second zero day this month is CVE-2023-36033, which is a vulnerability in the “DWM Core Library” in Microsoft Windows that was exploited in the wild as a zero day and publicly disclosed prior to patches being available. It affects Microsoft Windows 10 and later, as well as Microsoft Windows Server 2019 and subsequent versions.

“This vulnerability can be exploited locally, with low complexity and without needing high-level privileges or user interaction,” said Mike Walters, president and co-founder of the security firm Action1. “Attackers exploiting this flaw could gain SYSTEM privileges, making it an efficient method for escalating privileges, especially after initial access through methods like phishing.”

The final zero day in this month’s Patch Tuesday is a problem in the “Windows Cloud Files Mini Filter Driver” tracked as CVE-2023-36036 that affects Windows 10 and later, as well as Windows Server 2008 at later. Microsoft says it is relatively straightforward for attackers to exploit CVE-2023-36036 as a way to elevate their privileges on a compromised PC.

Beyond the zero day flaws, Breen said organizations running Microsoft Exchange Server should prioritize several new Exchange patches, including CVE-2023-36439, which is a bug that would allow attackers to install malicious software on an Exchange server. This weakness technically requires the attacker to be authenticated to the target’s local network, but Breen notes that a pair of phished Exchange credentials will provide that access nicely.

“This is typically achieved through social engineering attacks with spear phishing to gain initial access to a host before searching for other vulnerable internal targets – just because your Exchange Server doesn’t have internet-facing authentication doesn’t mean it’s protected,” Breen said.

Breen said this vulnerability goes hand in hand with three other Exchange bugs that Microsoft designated as “exploitation more likely:” CVE-2023-36050, CVE-2023-36039 and CVE-2023-36035.

Finally, the SANS Internet Storm Center points to two additional bugs patched by Microsoft this month that aren’t yet showing signs of active exploitation but that were made public prior to today and thus deserve prioritization. Those include: CVE-2023-36038, a denial of service vulnerability in ASP.NET Core, with a CVSS score of 8.2; and CVE-2023-36413: A Microsoft Office security feature bypass. Exploiting this vulnerability will bypass the protected mode when opening a file received via the web.

Windows users, please consider backing up your data and/or imaging your system before applying any updates. And feel free to sound off in the comments if you experience any difficulties as a result of these patches.

CISA Sets a Deadline - Patch Juniper Junos OS Flaws Before November 17

By Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has given a November 17, 2023, deadline for federal agencies and organizations to apply mitigations to secure against a number of security flaws in Juniper Junos OS that came to light in August. The agency on Monday added five vulnerabilities to the Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active

Chinese Hackers Launch Covert Espionage Attacks on 24 Cambodian Organizations

By Newsroom
Cybersecurity researchers have discovered what they say is malicious cyber activity orchestrated by two prominent Chinese nation-state hacking groups targeting 24 Cambodian government organizations. "This activity is believed to be part of a long-term espionage campaign," Palo Alto Networks Unit 42 researchers said in a report last week. "The observed activity aligns with geopolitical goals of

Zero-Day Alert: Lace Tempest Exploits SysAid IT Support Software Vulnerability

By Newsroom
The threat actor known as Lace Tempest has been linked to the exploitation of a zero-day flaw in SysAid IT support software in limited attacks, according to new findings from Microsoft. Lace Tempest, which is known for distributing the Cl0p ransomware, has in the past leveraged zero-day flaws in MOVEit Transfer and PaperCut servers. The issue, tracked as CVE-2023-47246, concerns a path traversal

Nation State Hackers Exploiting Zero-Day in Roundcube Webmail Software

By Newsroom
The threat actor known as Winter Vivern has been observed exploiting a zero-day flaw in Roundcube webmail software on October 11, 2023, to harvest email messages from victims' accounts. "Winter Vivern has stepped up its operations by using a zero-day vulnerability in Roundcube," ESET security researcher Matthieu Faou said in a new report published today. Previously, it was using known

Backdoor Implanted on Hacked Cisco Devices Modified to Evade Detection

By Newsroom
The backdoor implanted on Cisco devices by exploiting a pair of zero-day flaws in IOS XE software has been modified by the threat actor so as to escape visibility via previous fingerprinting methods. "Investigated network traffic to a compromised device has shown that the threat actor has upgraded the implant to do an extra header check," NCC Group's Fox-IT team said. "Thus, for a lot of devices

Cisco Zero-Day Exploited to Implant Malicious Lua Backdoor on Thousands of Devices

By Newsroom
Cisco has warned of a new zero-day flaw in IOS XE that has been actively exploited by an unknown threat actor to deploy a malicious Lua-based implant on susceptible devices. Tracked as CVE-2023-20273 (CVSS score: 7.2), the issue relates to a privilege escalation flaw in the web UI feature and is said to have been used alongside CVE-2023-20198 (CVSS score: 10.0) as part of an exploit chain. "The

Signal Debunks Zero-Day Vulnerability Reports, Finds No Evidence

By Newsroom
Encrypted messaging app Signal has pushed back against "viral reports" of an alleged zero-day flaw in its software, stating it found no evidence to support the claim. "After responsible investigation *we have no evidence that suggests this vulnerability is real* nor has any additional info been shared via our official reporting channels," it said in a series of messages posted in X (formerly

Microsoft Releases October 2023 Patches for 103 Flaws, Including 2 Active Exploits

By Newsroom
Microsoft has released its Patch Tuesday updates for October 2023, addressing a total of 103 flaws in its software, two of which have come under active exploitation in the wild. Of the 103 flaws, 13 are rated Critical and 90 are rated Important in severity. This is apart from 18 security vulnerabilities addressed in its Chromium-based Edge browser since the second Tuesday of September. The two

Microsoft Warns of Nation-State Hackers Exploiting Critical Atlassian Confluence Vulnerability

By Newsroom
Microsoft has linked the exploitation of a recently disclosed critical flaw in Atlassian Confluence Data Center and Server to a nation-state actor it tracks as Storm-0062 (aka DarkShadow or Oro0lxy). The tech giant's threat intelligence team said it observed in-the-wild abuse of the vulnerability since September 14, 2023. "CVE-2023-22515 is a critical privilege escalation vulnerability in
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