Key Exchange without Entity Authentication in Jenkins Git client plugin



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-36881
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Git client
Web applications / Modules and components for CMS

Vendor Jenkins

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU65843

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-36881

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected plugin does not perform SSH host key verification when connecting to Git repositories via SSH. A remote attacker can perform a man-in-the-middle (MitM) attack to intercept these connections

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Git client: 1.0.0 - 3.11.0

CPE2.3 External links

https://www.jenkins.io/security/advisory/2022-07-27/#SECURITY-1468
https://www.openwall.com/lists/oss-security/2022/07/27/1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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