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Apple and Microsoft recently released software updates to fix dozens of security holes in their operating systems. Microsoft today patched at least 60 vulnerabilities in its Windows OS. Meanwhile, Apple’s new macOS Sonoma addresses at least 68 security weaknesses, and its latest update for iOS fixes two zero-day flaws.
Last week, Apple pushed out an urgent software update to its flagship iOS platform, warning that there were at least two zero-day exploits for vulnerabilities being used in the wild (CVE-2024-23225 and CVE-2024-23296). The security updates are available in iOS 17.4, iPadOS 17.4, and iOS 16.7.6.
Apple’s macOS Sonoma 14.4 Security Update addresses dozens of security issues. Jason Kitka, chief information security officer at Automox, said the vulnerabilities patched in this update often stem from memory safety issues, a concern that has led to a broader industry conversation about the adoption of memory-safe programming languages [full disclosure: Automox is an advertiser on this site].
On Feb. 26, 2024, the Biden administration issued a report that calls for greater adoption of memory-safe programming languages. On Mar. 4, 2024, Google published Secure by Design, which lays out the company’s perspective on memory safety risks.
Mercifully, there do not appear to be any zero-day threats hounding Windows users this month (at least not yet). Satnam Narang, senior staff research engineer at Tenable, notes that of the 60 CVEs in this month’s Patch Tuesday release, only six are considered “more likely to be exploited” according to Microsoft.
Those more likely to be exploited bugs are mostly “elevation of privilege vulnerabilities” including CVE-2024-26182 (Windows Kernel), CVE-2024-26170 (Windows Composite Image File System (CimFS), CVE-2024-21437 (Windows Graphics Component), and CVE-2024-21433 (Windows Print Spooler).
Narang highlighted CVE-2024-21390 as a particularly interesting vulnerability in this month’s Patch Tuesday release, which is an elevation of privilege flaw in Microsoft Authenticator, the software giant’s app for multi-factor authentication. Narang said a prerequisite for an attacker to exploit this flaw is to already have a presence on the device either through malware or a malicious application.
“If a victim has closed and re-opened the Microsoft Authenticator app, an attacker could obtain multi-factor authentication codes and modify or delete accounts from the app,” Narang said. “Having access to a target device is bad enough as they can monitor keystrokes, steal data and redirect users to phishing websites, but if the goal is to remain stealth, they could maintain this access and steal multi-factor authentication codes in order to login to sensitive accounts, steal data or hijack the accounts altogether by changing passwords and replacing the multi-factor authentication device, effectively locking the user out of their accounts.”
CVE-2024-21334 earned a CVSS (danger) score of 9.8 (10 is the worst), and it concerns a weakness in Open Management Infrastructure (OMI), a Linux-based cloud infrastructure in Microsoft Azure. Microsoft says attackers could connect to OMI instances over the Internet without authentication, and then send specially crafted data packets to gain remote code execution on the host device.
CVE-2024-21435 is a CVSS 8.8 vulnerability in Windows OLE, which acts as a kind of backbone for a great deal of communication between applications that people use every day on Windows, said Ben McCarthy, lead cybersecurity engineer at Immersive Labs.
“With this vulnerability, there is an exploit that allows remote code execution, the attacker needs to trick a user into opening a document, this document will exploit the OLE engine to download a malicious DLL to gain code execution on the system,” Breen explained. “The attack complexity has been described as low meaning there is less of a barrier to entry for attackers.”
A full list of the vulnerabilities addressed by Microsoft this month is available at the SANS Internet Storm Center, which breaks down the updates by severity and urgency.
Finally, Adobe today issued security updates that fix dozens of security holes in a wide range of products, including Adobe Experience Manager, Adobe Premiere Pro, ColdFusion 2023 and 2021, Adobe Bridge, Lightroom, and Adobe Animate. Adobe said it is not aware of active exploitation against any of the flaws.
By the way, Adobe recently enrolled all of its Acrobat users into a “new generative AI feature” that scans the contents of your PDFs so that its new “AI Assistant” can “understand your questions and provide responses based on the content of your PDF file.” Adobe provides instructions on how to disable the AI features and opt out here.
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Web hosting giant GoDaddy made headlines this month when it disclosed that a multi-year breach allowed intruders to steal company source code, siphon customer and employee login credentials, and foist malware on customer websites. Media coverage understandably focused on GoDaddy’s admission that it suffered three different cyberattacks over as many years at the hands of the same hacking group. But it’s worth revisiting how this group typically got in to targeted companies: By calling employees and tricking them into navigating to a phishing website.
In a filing with the U.S. Securities and Exchange Commission (SEC), GoDaddy said it determined that the same “sophisticated threat actor group” was responsible for three separate intrusions, including:
-March 2020: A spear-phishing attack on a GoDaddy employee compromised the hosting login credentials of approximately 28,000 GoDaddy customers, as well as login credentials for a small number employees;
-November 2021: A compromised GoDaddy password let attackers steal source code and information tied to 1.2 million customers, including website administrator passwords, sFTP credentials, and private SSL keys;
-December 2022: Hackers gained access to and installed malware on GoDaddy’s cPanel hosting servers that “intermittently redirected random customer websites to malicious sites.”
“Based on our investigation, we believe these incidents are part of a multi-year campaign by a sophisticated threat actor group that, among other things, installed malware on our systems and obtained pieces of code related to some services within GoDaddy,” the company stated in its SEC filing.
What else do we know about the cause of these incidents? We don’t know much about the source of the November 2021 incident, other than GoDaddy’s statement that it involved a compromised password, and that it took about two months for the company to detect the intrusion. GoDaddy has not disclosed the source of the breach in December 2022 that led to malware on some customer websites.
But we do know the March 2020 attack was precipitated by a spear-phishing attack against a GoDaddy employee. GoDaddy described the incident at the time in general terms as a social engineering attack, but one of its customers affected by that March 2020 breach actually spoke to one of the hackers involved.
The hackers were able to change the Domain Name System (DNS) records for the transaction brokering site escrow.com so that it pointed to an address in Malaysia that was host to just a few other domains, including the then brand-new phishing domain servicenow-godaddy[.]com.
The general manager of Escrow.com found himself on the phone with one of the GoDaddy hackers, after someone who claimed they worked at GoDaddy called and said they needed him to authorize some changes to the account.
In reality, the caller had just tricked a GoDaddy employee into giving away their credentials, and he could see from the employee’s account that Escrow.com required a specific security procedure to complete a domain transfer.
The general manager of Escrow.com said he suspected the call was a scam, but decided to play along for about an hour — all the while recording the call and coaxing information out of the scammer.
“This guy had access to the notes, and knew the number to call,” to make changes to the account, the CEO of Escrow.com told KrebsOnSecurity. “He was literally reading off the tickets to the notes of the admin panel inside GoDaddy.”
About halfway through this conversation — after being called out by the general manager as an imposter — the hacker admitted that he was not a GoDaddy employee, and that he was in fact part of a group that enjoyed repeated success with social engineering employees at targeted companies over the phone.
Absent from GoDaddy’s SEC statement is another spate of attacks in November 2020, in which unknown intruders redirected email and web traffic for multiple cryptocurrency services that used GoDaddy in some capacity.
It is possible this incident was not mentioned because it was the work of yet another group of intruders. But in response to questions from KrebsOnSecurity at the time, GoDaddy said that incident also stemmed from a “limited” number of GoDaddy employees falling for a sophisticated social engineering scam.
“As threat actors become increasingly sophisticated and aggressive in their attacks, we are constantly educating employees about new tactics that might be used against them and adopting new security measures to prevent future attacks,” GoDaddy said in a written statement back in 2020.
Voice phishing or “vishing” attacks typically target employees who work remotely. The phishers will usually claim that they’re calling from the employer’s IT department, supposedly to help troubleshoot some issue. The goal is to convince the target to enter their credentials at a website set up by the attackers that mimics the organization’s corporate email or VPN portal.
Experts interviewed for an August 2020 story on a steep rise in successful voice phishing attacks said there are generally at least two people involved in each vishing scam: One who is social engineering the target over the phone, and another co-conspirator who takes any credentials entered at the phishing page — including multi-factor authentication codes shared by the victim — and quickly uses them to log in to the company’s website.
The attackers are usually careful to do nothing with the phishing domain until they are ready to initiate a vishing call to a potential victim. And when the attack or call is complete, they disable the website tied to the domain.
This is key because many domain registrars will only respond to external requests to take down a phishing website if the site is live at the time of the abuse complaint. This tactic also can stymie efforts by companies that focus on identifying newly-registered phishing domains before they can be used for fraud.
A U2F device made by Yubikey.
GoDaddy’s latest SEC filing indicates the company had nearly 7,000 employees as of December 2022. In addition, GoDaddy contracts with another 3,000 people who work full-time for the company via business process outsourcing companies based primarily in India, the Philippines and Colombia.
Many companies now require employees to supply a one-time password — such as one sent via SMS or produced by a mobile authenticator app — in addition to their username and password when logging in to company assets online. But both SMS and app-based codes can be undermined by phishing attacks that simply request this information in addition to the user’s password.
One multifactor option — physical security keys — appears to be immune to these advanced scams. The most commonly used security keys are inexpensive USB-based devices. A security key implements a form of multi-factor authentication known as Universal 2nd Factor (U2F), which allows the user to complete the login process simply by inserting the USB device and pressing a button on the device. The key works without the need for any special software drivers.
The allure of U2F devices for multi-factor authentication is that even if an employee who has enrolled a security key for authentication tries to log in at an impostor site, the company’s systems simply refuse to request the security key if the user isn’t on their employer’s legitimate website, and the login attempt fails. Thus, the second factor cannot be phished, either over the phone or Internet.
In July 2018, Google disclosed that it had not had any of its 85,000+ employees successfully phished on their work-related accounts since early 2017, when it began requiring all employees to use physical security keys in place of one-time codes.
One of the positive trends that we’ve seen in recent years is governments and users pressuring companies to simplify their privacy policies and security settings. This comes after a slew of concerning incidents, such as widespread data breaches and data sharing by social media companies.
The spotlight on these issues is beginning to take effect, as Facebook’s latest “Access Your Information” tool shows, and users are feeling more empowered. Furthermore, in November 2020, Californians voted in favor of the new California Privacy Rights Act to strengthen privacy protections for consumers. This is also reinforced by more and more states and countries considering or debating the introduction of comprehensive privacy legislation.
In fact, a recent study found that 71% of respondents checked their social media platform’s advanced privacy settings when they joined. This is great progress, but we can do more. We know from our research that only 39% of users make sure the site or service they’re using is legitimate, and a mere 12% use a dark web monitoring service. This year’s International Data Privacy Day, January 28th, is the perfect opportunity to make sure that your sensitive information stays as safe as possible.
The data we are looking to protect, known as Personal Data or Personally Identifiable Information (PII), can be anything that relates to your identity. And although many technology users feel that protecting this information is beyond their control, we actually have a lot of simple and effective ways to safeguard our PII. So, let’s start this new year by owning our privacy with a closer look at our social media accounts.
After all, we take pains to safeguard our finances, and the personal data we share on social channels is similar: it has value, and it’s up to us to make sure we take the right steps to keep it protected. Security tools like antivirus software and password managers help enormously in boosting our overall security, but when it comes to social media in particular it’s essential to know what kind of data we’re generating, and how it is used and shared.
First we need to recognize that where we click, “like” and login, all leave a digital footprint that can be used to reveal more about your identity and habits than you would think. For example, just using Facebook, Amazon, or Google to login to third-party sites generates an enormous amount of information about where you go and what you do. Many users choose this route because it is easier than creating and remembering passwords to each individual site.
Another way your data gets scattered around is through sharing—whether you intentionally post on social media sites, or use a website, app, or service that permits third-party access of user information. Many users unwittingly agree to this access because it’s buried somewhere in a thick privacy policy.
Now that we know a little more about how your PII gets out, let’s learn how to protect it.
Avoid oversharing—When it comes to social media accounts, set them to share with “friends only.” This should give you some control, but it’s also important to realize that your photos and data can still travel beyond your immediate network, so our best advice is not to post anything you wouldn’t want a future boss to see, for example.
For your other sensitive accounts, check to see which information is being shared, and with whom. If you’re not comfortable with the terms, you can decide to opt out, or close your account.
Check for linked logins—If you use your Facebook or Google login credentials to log in to other accounts, it’s a good idea to revise the list of sites that have access to your information and pare it down. In many cases you may have visited a site just once, and there is no reason for the third-party site to hold onto your data. Delete the linked information by visiting the website you used to login in the first place, and create unique login credentials for the sites you visit frequently.
Keep a careful eye on your apps—Mobile apps have become a key vector for hackers, so you want to make sure that you only download and install apps from reputable providers that have positive reviews.
For the apps that are already on on your phone or tablet, check the security settings to see if they are accessing more information than they need to work properly. For instance, a mapping app needs your exact physical location, but a gaming app may not. McAfee® Mobile Security can safeguard your devices from malicious files, and help prevent you from oversharing data with apps.
Lose what you don’t use—If you have accounts for apps or services that you no longer use, it’s time to get rid of them. This prevents them from potentially leaking your information in the future. Just remember that deleting an app doesn’t mean that your data is deleted. For that, you’ll need to close your account.
For the apps you want to keep, make sure they are updated, since updates often contain security fixes. You may also want to recheck the settings to ensure that your data is only being shared if you explicitly allow it.
Let tech tools help—Of course, I always recommend that you download security software, and a holistic solution like McAfee Total Protection includes dedicated privacy tools, like a virtual private network (VPN), which scrambles your data while it flows over the network, ensuring that no one else can see it. It also includes safe browsing tools to keep you safer from malicious sites and downloads, and dark web monitoring to help you keep tabs on your personal data.
McAfee also recently released a personal protection app (in beta) that monitors the dark web to see if your login credentials have been leaked. If so, it alerts you, so you can change your passwords immediately. It also includes a VPN.
Be careful where you click—Even the most savvy users can still accidentally click on a dangerous link, so consider using the free McAfee® WebAdvisor to alert you to risky links and downloads that may be hiding in your newsfeeds and timelines, before you click on them.
Stay aware of the latest scams—Part of owning your privacy includes staying informed about the latest threats. These blogs are a great resource.
This Data Privacy Day make a resolution to take back control of your personal information, and help others do the same. For more information visit the National Cyber Security Alliance.
Looking for more mobile security tips and trends? Be sure to follow @McAfee Home on Twitter, and like us on Facebook.
The post This Data Privacy Day Own Your Privacy, Even On Social Sites appeared first on McAfee Blogs.
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