CVE-2024-43646

Untrusted Pointer Dereference (CWE-822)

Published: Nov 12, 2024

010
CVSS 6.7EPSS 0.04%Medium
CVE info copied to clipboard

Summary

Windows Secure Kernel Mode Elevation of Privilege Vulnerability. This is a local vulnerability with a CVSS base score of 6.7, indicating moderate severity. The vulnerability is characterized by high impacts on confidentiality, integrity, and availability. It requires high privileges and no user interaction to exploit. The attack vector is local, and the attack complexity is low. This vulnerability is associated with an Untrusted Pointer Dereference (CWE-822) and potentially a Use After Free (CWE-416) issue.

Impact

Successful exploitation of this vulnerability could allow an attacker with high privileges to elevate their privileges further within the Windows Secure Kernel Mode. This could lead to complete compromise of the system's confidentiality, integrity, and availability. The attacker could potentially execute arbitrary code with elevated permissions, access sensitive information, modify system files, or cause system instability.

Exploitation

There is no evidence that a public proof-of-concept exists. There is no evidence of proof of exploitation at the moment.

Patch

A patch for this vulnerability is available. Microsoft released the patch on November 12, 2024.

Mitigation

1. Apply the security update provided by Microsoft as soon as possible. 2. Implement the principle of least privilege to limit the potential impact of this vulnerability. 3. Monitor and restrict access to local systems, as the attack vector is local. 4. Keep all Windows systems and software up to date with the latest security patches. 5. Use advanced threat protection and endpoint detection and response (EDR) solutions to detect and prevent potential exploitation attempts. 6. Implement strong access controls and user authentication mechanisms to reduce the risk of an attacker gaining the high privileges required to exploit this vulnerability.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Timeline

Detection in Vulnerability Scanners

Detection for the vulnerability has been added to Qualys (92186)

Nov 12, 2024 at 7:53 AM
CVSS

A CVSS base score of 6.7 has been assigned.

Nov 12, 2024 at 5:55 PM / microsoft
First Article

Feedly found the first article mentioning CVE-2024-43646. See article

Nov 12, 2024 at 6:00 PM / Microsoft Security Advisories - MSRC
CVSS Estimate

Feedly estimated the CVSS score as MEDIUM

Nov 12, 2024 at 6:01 PM
CVE Assignment

NVD published the first details for CVE-2024-43646

Nov 12, 2024 at 6:15 PM
EPSS

EPSS Score was set to: 0.04% (Percentile: 10.1%)

Nov 13, 2024 at 5:06 PM
EPSS

EPSS Score was set to: 0.04% (Percentile: 10.2%)

Nov 18, 2024 at 7:00 PM
CVSS

A CVSS base score of 7.8 has been assigned.

Nov 18, 2024 at 10:20 PM / nvd
Static CVE Timeline Graph

Affected Systems

Microsoft/windows_server_2025
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Patches

Microsoft
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Attack Patterns

CAPEC-129: Pointer Manipulation
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References

Windows Secure Kernel Mode Elevation of Privilege Vulnerability
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

News

2024-45 - Adobe, Mozilla, Canonical, Red Hat, Microsoft, Google, Jenkins, GitHub, Spring 🗂️
Advisory Week Week 45, 2024 National Cyber Awareness System CISA Releases Nineteen Industrial Control Systems Advisories CISA Adds Two Known Exploited Vulnerabilities to Catalog Palo Alto Networks Emphasizes Hardening Guidance Fortinet Releases Security Updates for Multiple Products Microsoft Releases November 2024 Security Updates Adobe Releases Security Updates for Multiple Products Ivanti Releases Security Updates for Multiple Products JCDC’s Collaborative Efforts Enhance Cybersecurity for the 2024 Olympic and Paralympic Games Citrix Releases Security Updates for NetScaler and Citrix Session Recording CISA Releases Five Industrial Control Systems Advisories CISA, FBI, NSA, and International Partners Release Joint Advisory on 2023 Top Routinely Exploited Vulnerabilities CISA Adds Five Known Exploited Vulnerabilities to Catalog Adobe Security Bulletins and Advisories Security updates available for Adobe Photoshop APSB24-89 Security Updates Available for Adobe Commerce APSB24-90 Security Updates Available for Adobe Illustrator APSB24-66 APSB24-87 Security Update Available for Adobe InDesign APSB24-88 Security Updates Available for Adobe Bridge APSB24-77 Security Updates Available for Adobe Audition APSB24-83 Mozilla Security Advisories Security Vulnerabilities fixed in Thunderbird 132.0.1 mfsa2024-62 Security Vulnerabilities fixed in Thunderbird 128.4.3 mfsa2024-61 Ubuntu Security Notices Linux kernel vulnerabilities: USN-7089-6 / USN-7088-5 / USN-7089-5 / USN-7110-1 / USN-7089-4 / USN-7100-2 / USN-7100-1 GD Graphics Library vulnerability: USN-7112-1 Go vulnerabilities: USN-7111-1 / USN-7109-1 Linux kernel vulnerability:
Microsoft’s Security Update in November on High-Risk Vulnerabilities in Multiple Products
On November 13, NSFOCUS CERT detected that Microsoft released a security update patch for November, which fixed 89 security issues, including Windows, Microsoft SQL Server, Microsoft Office, Azure, Open Source Software, Microsoft Visual Studio, System Center and other widely used products, including high-risk vulnerabilities such as privilege escalation vulnerability and remote code execution vulnerability. Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
1.771
Atlassian Confluence Server CVE-2023-22505 Remote Code Execution Vulnerability Atlassian Confluence Server CVE-2023-22508 Remote Code Execution Vulnerability
Patch Tuesday November 2024 - 3 Zero Days!
So, without further ado, here’s the chart of MS patches that affect Windows platforms in the past month. Of this months patches only 8 are critical and 88 important.
November Patch Tuesday loads up everyone’s plate – Sophos News
We are as always including at the end of this post additional appendices listing all Microsoft’s patches, sorted by severity, by predicted exploitability, and by product family. This Important-severity spoofing vulnerability, which Microsoft believes to be more likely to be exploited within the next 30 days, has a rather specific set of post-installation instructions, which can be seen on the company’s site.
See 25 more articles and social media posts

CVSS V3.1

Attack Vector:Local
Attack Complexity:Low
Privileges Required:High
User Interaction:None
Scope:Unchanged
Confidentiality:High
Integrity:High
Availability Impact:High

Categories

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