Stored cross-site scripting in Jenkins Link Column plugin

1) Stored cross-site scripting

EUVDB-ID: #VU29529

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2020-2219

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

Exploit availability: No

Description

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "javascript:" scheme. A remote user with View/Configure permission can inject and execute arbitrary HTML and script code in user's browser in 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

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Link Column: 1.0

External links

http://www.openwall.com/lists/oss-security/2020/07/02/7
http://jenkins.io/security/advisory/2020-07-02/#SECURITY-1803

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. However, proof of concept for this vulnerability is available.