CVE-2023-43494 — Jenkins does not exclude sensitive build variables from search

Description

Jenkins 2.50 through 2.423 (both inclusive), LTS 2.60.1 through 2.414.1 (both inclusive) does not exclude sensitive build variables (e.g., password parameter values) from the search in the build history widget, allowing attackers with Item/Read permission to obtain values of sensitive variables used in builds by iteratively testing different characters until the correct sequence is discovered.

Affected products

Vendor	Product	Affected	Fixed
Jenkins Project	Jenkins	—	—

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

mqxmm/CVE-2023-43494 ★ 0 · Aug 21, 2024

Jenkins 2.50 through 2.423 (both inclusive), LTS 2.60.1 through 2.414.1 (both inclusive) File Read

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

Ecosystem	Package	Affected	Fixed	Record
Maven	org.jenkins-ci.main:jenkins-core	>= 2.50, < 2.414.2	2.414.2	GHSA-279f-qwgh-h5mp
Maven	org.jenkins-ci.main:jenkins-core	>= 2.415, < 2.424	2.424	GHSA-279f-qwgh-h5mp

Advisories 1

WID-SEC-2023-2411 Jenkins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 20, 2023

References

Jenkins Security Advisory 2023-09-20 vendor-advisory
http://www.openwall.com/lists/oss-security/2023/09/20/5