Stored cross-site scripting in jenkins (Alpine package)

1) Stored cross-site scripting

EUVDB-ID: #VU21358

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-10406

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 the affected software does not restrict or filter values set as Jenkins URL in the global configuration. A remote authenticated user with Overall/Administer permission can permanently 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

Install update from vendor's website.

Vulnerable software versions

jenkins (Alpine package): 2.73.3-r0 - 2.198-r0

CPE2.3

• cpe:2.3:o:alpine:jenkins_alpine_package:2.73.3-r0:*:*:*:*:alpine_linux:*:3.7
• cpe:2.3:o:alpine:jenkins_alpine_package:2.89.2-r0:*:*:*:*:alpine_linux:*:3.7
• cpe:2.3:o:alpine:jenkins_alpine_package:2.89.3-r0:*:*:*:*:alpine_linux:*:3.7

External links

https://git.alpinelinux.org/aports/commit/?id=4416c0ae0e1c5dcf4a157fb30d404acce72c5771

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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