CVE-2024-43645

Protection Mechanism Failure (CWE-693)

Published: Nov 12, 2024

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

Summary

Windows Defender Application Control (WDAC) Security Feature Bypass Vulnerability. This is a protection mechanism failure that allows for a security feature bypass in Windows Defender Application Control. The vulnerability has a CVSS v3.1 base score of 6.7, indicating a medium to high severity. The attack vector is local, requiring high privileges, but no user interaction.

Impact

If exploited, this vulnerability could lead to high impacts on confidentiality, integrity, and availability of the affected systems. An attacker who successfully exploits this vulnerability could bypass Windows Defender Application Control, potentially allowing the execution of unauthorized applications or code. This could compromise the security posture of the system, leading to potential data breaches, system compromise, or disruption of services.

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 for this vulnerability. Microsoft released an update to address this issue on November 12, 2024.

Mitigation

1. Apply the security update provided by Microsoft as soon as possible. 2. Prioritize patching based on the medium to high severity (CVSS score 6.7) and the potential for high impact on system security. 3. Monitor systems for any suspicious activity or unauthorized application execution. 4. Implement the principle of least privilege to minimize the risk of exploitation, as the vulnerability requires high privileges. 5. Keep Windows Defender and other security software up to date. 6. Regularly audit and review WDAC policies to ensure they are correctly configured and enforced.

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-2024-43645. 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-2024-43645

Nov 12, 2024 at 6:15 PM
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 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_10_1507
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Patches

Microsoft
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Links to Mitre Att&cks

T1574.010: Services File Permissions Weakness
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Attack Patterns

CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs
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References

Windows Defender Application Control (WDAC) Security Feature Bypass Vulnerability
What kind of security feature could be bypassed by successfully exploiting this vulnerability? An attacker who successfully exploits this vulnerability could bypass Windows Defender Application Control (WDAC) enforcement.

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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