Stored cross-site scripting in jenkins (Alpine package)

1) Stored cross-site scripting

EUVDB-ID: #VU21354

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-2019-10402

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 attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when the "f:combobox" form control interpreted its item labels as HTML. A remote authenticated attacker with permission to define its contents 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 user via the Internet.

Is there known malware, which exploits this vulnerability?

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