Privilege escalation in Git for Visual Studio

1) Input validation error

EUVDB-ID: #VU20289

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-1211

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of configuration files in Git for Visual Studio. A local user with ability to modify Git configuration files can execute arbitrary code on the system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Visual Studio: 15.0 26228.04 - 16.2.0 16.2.29123.88

CPE2.3

• cpe:2.3:a:microsoft:visual_studio:15.0:26228.04:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:15.9:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:16.0.0:16.0.28729.10:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:16.1.0:16.1.28917.181:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:16.2.0:16.2.29123.88:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1211

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.