CVE-2024-23899 – org.jenkins-ci.plugins:git-server

Package

Manager: maven
Name: org.jenkins-ci.plugins:git-server
Vulnerable Version: >=0 <99.101.v720e86326c09

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.0067 pctl0.70461

Details

Arbitrary file read vulnerability in Git server Plugin can lead to RCE Jenkins Git server Plugin uses the [args4j](https://github.com/kohsuke/args4j) library to parse command arguments and options on the Jenkins controller when processing Git commands received via SSH. This command parser has a feature that replaces an @ character followed by a file path in an argument with the file’s contents (`expandAtFiles`). This feature is enabled by default and Git server Plugin 99.va_0826a_b_cdfa_d and earlier does not disable it. This allows attackers with Overall/Read permission to read the first two lines of arbitrary files on the Jenkins controller file system using the default character encoding of the Jenkins controller process. See [SECURITY-3314](https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3314) for further information about the potential impact of being able to read files on the Jenkins controller, as well as the [limitations for reading binary files](https://www.jenkins.io/security/advisory/2024-01-24/#binary-files-note). Note that for this issue, unlike SECURITY-3314, attackers need Overall/Read permission. ## Fix Description Git server Plugin 99.101.v720e86326c09 disables the command parser feature that replaces an @ character followed by a file path in an argument with the file’s contents for CLI commands. ## Workaround Navigate to Manage Jenkins » Security and ensure that the SSHD Port setting in the SSH Server section is set to Disable. This disables access to Git repositories hosted by Jenkins (and the Jenkins CLI) via SSH.

Metadata

Created: 2024-01-24T18:31:02Z
Modified: 2025-06-04T22:48:07Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-vph5-2q33-7r9h/GHSA-vph5-2q33-7r9h.json
CWE IDs: ["CWE-22"]
Alternative ID: GHSA-vph5-2q33-7r9h
Finding: F063
Auto approve: 1