Remote code execution in Git client plugin for Jenkins

1) OS Command Injection

EUVDB-ID: #VU21118

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-10392

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to the affected software does not properly restrict values passed as URL argument to an invocation of git "ls-remote". A remote authenticated attacker with Job/Configure permission can execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Git client: 1.4.0 - 2.8.4

External links

http://www.openwall.com/lists/oss-security/2019/09/12/2
http://jenkins.io/security/advisory/2019-09-12/#SECURITY-1534

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.