Multiple vulnerabilities in Microsoft Windows Installer

Published: 2022-04-12 | Updated: 2022-06-01

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-24499 CVE-2022-24530
CWE-ID	CWE-59 CWE-264
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Link following

EUVDB-ID: #VU62141

Risk: Low

CVSSv4.0: 5.9 [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]

CVE-ID: CVE-2022-24499

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

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 - 11 21H2 10.0.22000.194

Windows Server: 2008 - 2022 10.0.20348.202

CPE2.3

External links

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

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU62142