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January Linux Patch Wednesday

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January Linux Patch Wednesday

January Linux Patch Wednesday. Out of 424 total vulnerabilities, 271 are in the Linux Kernel. None show signs of exploitation in the wild, but 9 have public exploits.

🔸 RCE – Apache Tomcat (CVE-2024-56337). Based on the description, the vulnerability affects “case-insensitive file systems” like Windows or MacOS. However, Debian lists it as affecting tomcat9 and tomcat10. Either this is about rare case-insensitive Linux installations or there is an error in the description. 🤷‍♂️
🔸 RCE – Chromium (CVE-2025-0291). According to the FSTEC BDU, a public exploit exists.
🔸 RCE – 7-Zip (CVE-2024-11477). What’s in the public is not an exploit, but a write-up.
🔸 Memory Corruption – Theora (CVE-2024-56431). It’s not clear yet how to exploit this. 🤷‍♂️
🔸 Memory Corruption – Telegram (CVE-2021-31320, CVE-2021-31319, CVE-2021-31315, CVE-2021-31318, CVE-2021-31322). Ubuntu fixed these vulnerabilities in the rlottie library package.

🗒 Full Vulristics report

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The Elevation of Privilege – Windows Common Log File System Driver (CVE-2024-49138) has become more critical

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The Elevation of Privilege - Windows Common Log File System Driver (CVE-2024-49138) has become more critical

The Elevation of Privilege – Windows Common Log File System Driver (CVE-2024-49138) has become more critical. Just as I wrote that nothing had been heard about this vulnerability for a month since it was first published in Microsoft’s December Patch Tuesday, a public exploit for it appeared on January 15th. 🙂 It was developed by Alessandro Iandoli from HN Security. The source code and video demonstrating the exploit are available on GitHub: a local attacker runs an exe file in PowerShell and, after a second, becomes “nt authority/system”. The researcher tested the exploit on Windows 11 23h2. He also promises to publish a blog post with a detailed analysis of the vulnerability.

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What has become known about the Elevation of Privilege – Windows Common Log File System Driver (CVE-2024-49138) vulnerability from the December Microsoft Patch Tuesday a month later?

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What has become known about the Elevation of Privilege - Windows Common Log File System Driver (CVE-2024-49138) vulnerability from the December Microsoft Patch Tuesday a month later?

What has become known about the Elevation of Privilege – Windows Common Log File System Driver (CVE-2024-49138) vulnerability from the December Microsoft Patch Tuesday a month later? Almost nothing. 🙄 This is a vulnerability in a standard Windows component, available in all versions starting with Windows Server 2003 R2. Its description is typical for EoP in Windows: if successfully exploited, a local attacker can gain SYSTEM privileges. The cause of the vulnerability is Heap-based Buffer Overflow.

Microsoft has labeled the vulnerability as being exploited in the wild, but has not provided information on where the vulnerability was being exploited or how widespread the attacks were.

The vulnerability was reported by CrowdStrike’s Advanced Research Team. But neither they nor other researchers have provided technical details yet. 🤷‍♂️ And there are no exploits yet either.

So install the December Microsoft security updates and let’s wait for news! 😉

Update

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January Microsoft Patch Tuesday

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January Microsoft Patch Tuesday

January Microsoft Patch Tuesday. 170 CVEs, 10 of them were added since December MSPT. 3 exploited in the wild:

🔻 EoP – Windows Hyper-V NT Kernel Integration VSP (CVE-2025-21333, CVE-2025-21334, CVE-2025-21335). No details yet.

No vulnerabilities have public exploits. 5 have private ones:

🔸 Security Feature Bypass – Microsoft Update Catalog (CVE-2024-49147), MapUrlToZone (CVE-2025-21268, CVE-2025-21189)
🔸 EoP – Windows Installer (CVE-2025-21287)
🔸 Auth. Bypass – Azure (CVE-2025-21380)

Notable among the rest:

🔹 RCE – Windows OLE (CVE-2025-21298), Windows RMCAST (CVE-2025-21307), Microsoft Office (CVE-2025-21365), Windows Remote Desktop Services (CVE-2025-21297, CVE-2025-21309), NEGOEX (CVE-2025-21295)
🔹 EoP – Windows NTLM V1 (CVE-2025-21311), Windows Search Service (CVE-2025-21292), Windows App Package Installer (CVE-2025-21275)
🔹 Spoofing – Windows Themes (CVE-2025-21308)

🗒 Full Vulristics report

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About Elevation of Privilege – Windows Kernel Streaming WOW Thunk Service Driver (CVE-2024-38144) vulnerability

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About Elevation of Privilege - Windows Kernel Streaming WOW Thunk Service Driver (CVE-2024-38144) vulnerability

About Elevation of Privilege – Windows Kernel Streaming WOW Thunk Service Driver (CVE-2024-38144) vulnerability. The vulnerability is from the August Microsoft Patch Tuesday. It wasn’t highlighted in reviews; all we knew was that a local attacker could gain SYSTEM privileges.

Three and a half months later, on November 27, SSD Secure Disclosure released a write-up with exploit code. This vulnerability was exploited at TyphoonPWN 2024, earning the researcher a $70,000 prize.

SSD stated in their write-up that communications with Microsoft were problematic and noted that “at the time of trying this on the latest version of Windows 11, the vulnerability still worked”. It’s unclear if this “time of trying” was before the August MSPT or just before the write-up was released in November. If the second option, the vulnerability might still be a 0day. 🤔🤷‍♂️

No reports of this vulnerability being exploited in attacks yet.

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About Authentication Bypass – Hunk Companion WordPress plugin (CVE-2024-11972) vulnerability

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About Authentication Bypass - Hunk Companion WordPress plugin (CVE-2024-11972) vulnerability

About Authentication Bypass – Hunk Companion WordPress plugin (CVE-2024-11972) vulnerability. ThemeHunk company develops commercial themes for WordPress CMS. And the Hunk Companion plugin is designed to complement and enhance the functionality of these themes. The plugin has over 10,000 installations.

On December 10, WPScan reported a vulnerability in Hunk Companion plugin versions below 1.9.0, allowing unauthenticated attackers to install and activate plugins from the WordPressOrg repository. The exploit has been on GitHub since December 28.

This way, attackers can install plugins that contain additional vulnerabilities. 👾 In the incident analyzed by WPScan, the attackers installed the WP Query Console plugin with RCE vulnerability CVE‑2024‑50498 on the website and exploited it to install a backdoor.

If you use WordPress, try to minimize the number of plugins and update them regularly!

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Aggregators of actively discussed vulnerabilities

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Aggregators of actively discussed vulnerabilities

Aggregators of actively discussed vulnerabilities. Alexander Redchits updated his list of services that highlight TOP CVE vulnerabilities and uploaded it with descriptions to teletype (in Russian). Now there are 11 of them:

1. Intruder’s Top CVE Trends & Expert Vulnerability Insights
2. Cytidel Top Trending
3. CVE Crowd
4. Feedly Trending Vulnerabilities
5. CVEShield
6. CVE Radar
7. Vulners “Discussed in social networks”
8. Vulmon Vulnerability Trends
9. SecurityVulnerability Trends
10. CVESky
11. Vulnerability-lookup

It’s great that there are so many of them! 👍 But for the most part, these services are NOT about real attacks and exploitability, but about the desire of the information security community to discuss some vulnerabilities. What is being discussed may not always be important to you.

And the attention span of the information security community is like that of a goldfish: they analyze a vulnerability/incident, demonstrate their expertise and immediately forget about it. 🤷‍♂️😏

It’s fascinating to look at these selections of CVE vulnerabilities, but using these lists to prioritize vulnerabilities in the VM process is a bad idea. It’s better to focus on the trending vulnerability lists provided by Positive Technologies. 😉😇

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