#VU33180 Cross-site scripting in Jenkins - CVE-2019-1003050

Vulnerability identifier: #VU33180

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-1003050

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Jenkins
Server applications / Application servers

Vendor: Jenkins

Description

The vulnerability allows a remote authenticated user to read and manipulate data.

The f:validateButton form control for the Jenkins UI did not properly escape job URLs in Jenkins 2.171 and earlier and Jenkins LTS 2.164.1 and earlier, resulting in a cross-site scripting (XSS) vulnerability exploitable by users with the ability to control job names.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Jenkins: 2.0 - 2.171

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External links
https://www.securityfocus.com/bid/107889
https://access.redhat.com/errata/RHBA-2019:1605
https://jenkins.io/security/advisory/2019-04-10/#SECURITY-1327

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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.