SB2024041053 - Multiple vulnerabilities in Microsoft Windows Update Stack

Description

This security bulletin contains information about 2 vulnerabilities.

1) Sensitive Data Storage in Improperly Locked Memory (CVE-ID: CVE-2024-26236)

CWE-ID: CWE-591 - Sensitive Data Storage in Improperly Locked Memory

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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to sensitive data storage in improperly locked memory in Windows Update Stack. A local user can cause a race condition and gain elevated privileges.

2) Missing Authentication for Critical Function (CVE-ID: CVE-2024-26235)

CWE-ID: CWE-306 - Missing Authentication for Critical Function

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

The vulnerability allows a local user to bypass authentication process.

The vulnerability exists due to a missing authentication check in Windows Update Stack. A local user can overwrite arbitrary files and gain elevated prvileges.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26236
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26235