CVE-2024-43623

Integer Overflow or Wraparound (CWE-190)

Published: Nov 12, 2024

010
CVSS 7.8EPSS 0.04%High
CVE info copied to clipboard

Summary

Windows NT OS Kernel Elevation of Privilege Vulnerability. This is a local attack vector vulnerability with low attack complexity and low privileges required. It has high impact on confidentiality, integrity, and availability. The vulnerability is associated with an Integer Overflow or Wraparound (CWE-190) issue in the Windows NT OS Kernel.

Impact

This vulnerability allows an attacker with low privileges to potentially gain elevated privileges on a Windows system. The high impact on confidentiality, integrity, and availability suggests that an attacker could potentially access sensitive information, modify system files or data, and disrupt system operations. Given the local attack vector, the attacker would need some form of local access to the system to exploit this vulnerability. While the specific impacts are not detailed, the potential for privilege escalation in the OS kernel could lead to full system compromise.

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 is available. Microsoft released an official fix for this vulnerability on November 12, 2024. The security team should prioritize applying this patch, as it addresses a high-severity issue (CVSS base score 7.8) in a critical system component.

Mitigation

1. Apply the official patch released by Microsoft as soon as possible. 2. Limit local access to systems to only trusted users. 3. Implement the principle of least privilege, ensuring users and processes operate with the minimum necessary permissions. 4. Monitor systems for unusual activity, particularly attempts to elevate privileges. 5. Keep all Windows systems and software up to date with the latest security patches.

CVSS:3.1/AV:L/AC:L/PR:L/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
First Article

Feedly found the first article mentioning CVE-2024-43623. See article

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

Feedly estimated the CVSS score as HIGH

Nov 12, 2024 at 6:01 PM
CVE Assignment

NVD published the first details for CVE-2024-43623

Nov 12, 2024 at 6:15 PM
CVSS Estimate

Feedly estimated the CVSS score as MEDIUM

Nov 12, 2024 at 6:36 PM
Detection in Vulnerability Scanners

Detection for the vulnerability has been added to Nessus (210865)

Nov 13, 2024 at 2:15 AM
Detection in Vulnerability Scanners

Detection for the vulnerability has been added to Nessus (210863)

Nov 13, 2024 at 2:15 AM
Detection in Vulnerability Scanners

Detection for the vulnerability has been added to Nessus (210861)

Nov 13, 2024 at 2:15 AM
Detection in Vulnerability Scanners

Detection for the vulnerability has been added to Nessus (210857)

Nov 13, 2024 at 2:15 AM
Static CVE Timeline Graph

Affected Systems

Microsoft/windows_11_23h2
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Patches

Microsoft
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Attack Patterns

CAPEC-92: Forced Integer Overflow
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References

Windows NT OS Kernel 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 40 more articles and social media posts

CVSS V3.1

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

Categories

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