SB2024010990 - Multiple vulnerabilities in Microsoft Windows Themes

Description

This security bulletin contains information about 2 vulnerabilities.

1) Spoofing attack (CVE-ID: CVE-2024-21320)

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in the Windows Themes. A remote attacker can trick a victim to manipulate a specially crafted file and spoof page content.

2) Race condition (CVE-ID: CVE-2024-20691)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to gain access to sensitvie information.

The vulnerability exists due to a race condition in the Windows Themes. A local user can exploit the race and gain unauthorized access to sensitive information on the target system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21320
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20691