Cross-site scripting in Jenkins

1) Cross-site scripting

EUVDB-ID: #VU44478

Risk: Low

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

CVE-ID: CVE-2011-4344

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in Jenkins Core in Jenkins before 1.438, and 1.409 LTS before 1.409.3 LTS, when a stand-alone container is used,. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Jenkins: 1.409.1 - 1.409.2

CPE2.3

• cpe:2.3:a:jenkins:jenkins:1.409.1:*:*:*:*:*:*:*
• cpe:2.3:a:jenkins:jenkins:1.409.2:*:*:*:*:*:*:*

External links

https://groups.google.com/group/jenkinsci-advisories/msg/1b94588f90f876b5?dmode=source&output=gplain
https://openwall.com/lists/oss-security/2011/11/23/5
https://openwall.com/lists/oss-security/2011/11/23/6
https://secunia.com/advisories/46911
https://www.cloudbees.com/jenkins-advisory/jenkins-security-advisory-2011-11-08.cb
https://www.securityfocus.com/bid/50786
https://github.com/jenkinsci/winstone/commit/410ed3001d51c689cf59085b7417466caa2ded7b.patch

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.