SB2024081393 - Multiple vulnerabilities in Microsoft Azure Connected Machine Agent

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2024-38162)

CWE-ID: CWE-284 - Improper Access Control

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 gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in Azure Connected Machine Agent. A local user can bypass implemented security restrictions and create or delete files in the security context of the NT AUTHORITY SYSTEM account.

2) Link following (CVE-ID: CVE-2024-38098)

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

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 escalate privileges on the system.

The vulnerability exists due to insecure link following in Azure Connected Machine Agent. A local user can gain elevated privileges on the system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-38162
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-38098