CVE-2023-24423 in Gerrit Trigger Plugin
Summary
by MITRE • 01/26/2023
A cross-site request forgery (CSRF) vulnerability in Jenkins Gerrit Trigger Plugin 2.38.0 and earlier allows attackers to rebuild previous builds triggered by Gerrit.
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Analysis
by VulDB Data Team • 07/04/2025
The CVE-2023-24423 vulnerability represents a critical cross-site request forgery flaw within the Jenkins Gerrit Trigger Plugin ecosystem. This vulnerability affects versions 2.38.0 and earlier, creating a significant security risk for organizations that rely on Jenkins for continuous integration and deployment processes integrated with Gerrit code review systems. The flaw specifically enables unauthorized attackers to manipulate the build system by triggering rebuilds of previous builds that were originally initiated through Gerrit events, fundamentally undermining the integrity of automated build processes.
The technical nature of this vulnerability stems from insufficient validation of request origins and lack of proper anti-CSRF token implementation within the plugin's web interface. When users interact with the Gerrit Trigger Plugin's web UI to manage builds, the system fails to properly verify that requests originate from legitimate authenticated sessions. This absence of proper origin validation creates a pathway for attackers to craft malicious requests that appear to come from authenticated users, effectively allowing them to execute unauthorized build operations. The vulnerability operates at the application layer and specifically targets the authentication and authorization mechanisms within Jenkins' plugin architecture, making it particularly dangerous in environments where Jenkins serves as a central automation hub.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential disruption of development workflows, resource exhaustion through unauthorized build execution, and possible exploitation for more advanced attack vectors. Attackers could leverage this flaw to consume excessive system resources by triggering multiple unnecessary builds, potentially leading to denial of service conditions. Additionally, the ability to rebuild previous builds could enable attackers to introduce malicious modifications to the build process, corrupting the integrity of the software delivery pipeline. Organizations may face compliance issues and potential data integrity concerns as this vulnerability undermines the trustworthiness of automated build systems that are critical for modern DevOps practices. The vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses, and maps to ATT&CK technique T1059.001 for command and script injection, as attackers could potentially chain this vulnerability with other exploits.
Mitigation strategies for CVE-2023-24423 should prioritize immediate plugin version upgrades to the latest available release that addresses this vulnerability. Organizations must also implement additional protective measures including network segmentation of Jenkins servers, enforcement of strict firewall rules limiting access to Jenkins interfaces, and implementation of web application firewalls to detect and block suspicious CSRF patterns. Security teams should conduct comprehensive audits of all Jenkins plugins to identify similar vulnerabilities and establish monitoring protocols for unauthorized build activities. Regular security assessments of CI/CD pipelines, combined with mandatory authentication token validation across all web interfaces, will significantly reduce the attack surface. Organizations should also consider implementing additional layers of authentication such as two-factor authentication for Jenkins access and regular security training for developers who interact with the build systems. The vulnerability demonstrates the importance of maintaining up-to-date security practices in automated development environments where the integrity of build processes directly impacts software quality and organizational security posture.