Vulnerability identifier: #VU8606

Vulnerability risk: Medium

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14867

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Git
Client/Desktop applications / Software for system administration

Vendor: Git

Description
The vulnerability allows a remote authenticated attacker to execute arbitrary OS commands on vulnerable system.

The vulnerability exists due to improper input validation when processing "git-cvsserver" parameters. A remote authenticated attacker can inject arbitrary OS commands and execute them on vulnerable system with 'git' user privileges.

Mitigation
Update to version 2.10.5, 2.11.4, 2.12.5, 2.13.6 or 2.14.2.

Vulnerable software versions

Git: 2.14.0 - 2.14.1, 2.13.0 - 2.13.5, 2.12.0 - 2.12.4, 2.11.0 - 2.11.3, 2.10.0 - 2.10.4

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External links
http://www.openwall.com/lists/oss-security/2017/09/26/9

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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