SB2022041242 - Multiple vulnerabilities in Microsoft Windows Installer

Description

This security bulletin contains information about 2 vulnerabilities.

1) Link following (CVE-ID: CVE-2022-24499)

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 the the Windows Installer service. A local user can create a symbolic link to an arbitrary file on the system and modify its permissions. As a result, a local user can later modify this file and escalate privileges on the system.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-24530)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

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 application does not properly impose security restrictions in Windows Installer, which leads to security restrictions bypass and privilege escalation.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-24499
• https://www.zerodayinitiative.com/advisories/ZDI-22-810/
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-24530