CVE-2024-49046

Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367)

Published: Nov 12, 2024

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

Summary

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability. This is a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability affecting the Windows Win32 Kernel Subsystem. It has a base score of 7.8, indicating high severity.

Impact

This vulnerability allows an attacker with low privileges to elevate their privileges on the affected system. The impact is severe, with high potential for compromising confidentiality, integrity, and availability of the system. An attacker could potentially gain full control over the affected Windows system, accessing sensitive information, modifying critical data, or disrupting system operations.

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 update to address this vulnerability 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 minimize the potential impact of privilege escalation. 3. Monitor systems for suspicious activities, especially those related to privilege escalation. 4. Keep all Windows systems up-to-date with the latest security patches. 5. Consider implementing additional access controls and security measures to protect critical system components.

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
CVSS

A CVSS base score of 7.8 has been assigned.

Nov 12, 2024 at 5:55 PM / microsoft
CVE Assignment

NVD published the first details for CVE-2024-49046

Nov 12, 2024 at 6:15 PM
First Article

Feedly found the first article mentioning CVE-2024-49046. See article

Nov 12, 2024 at 6:21 PM / National Vulnerability Database
CVSS Estimate

Feedly estimated the CVSS score as MEDIUM

Nov 12, 2024 at 6:36 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 8:36 PM
Static CVE Timeline Graph

Affected Systems

Microsoft/windows_server_2025
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Patches

Microsoft
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Attack Patterns

CAPEC-27: Leveraging Race Conditions via Symbolic Links
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References

Windows Win32 Kernel Subsystem 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

Windows Win32 Kernel Subsystem 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.
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.
See 27 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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