CVE-2013-2034 in Jenkins
Summary
by MITRE
Multiple cross-site request forgery (CSRF) vulnerabilities in CloudBees Jenkins before 1.514, LTS before 1.509.1, and Enterprise 1.466.x before 1.466.14.1 and 1.480.x before 1.480.4.1 allow remote attackers to hijack the authentication of administrators for requests that (1) execute arbitrary code or (2) initiate deployment of binaries to a Maven repository via unspecified vectors.
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Analysis
by VulDB Data Team • 03/21/2022
The CVE-2013-2034 vulnerability represents a critical cross-site request forgery flaw affecting CloudBees Jenkins versions prior to specific patch releases. This vulnerability resides within the authentication and authorization mechanisms of the Jenkins continuous integration platform, which serves as a cornerstone for software development automation in enterprise environments. The flaw enables remote attackers to exploit the trust relationship between the web application and authenticated administrators, potentially allowing unauthorized actions to be performed on behalf of privileged users. The vulnerability affects multiple release streams including the standard Jenkins releases, Long Term Support versions, and Enterprise editions, indicating a widespread impact across the Jenkins ecosystem.
The technical implementation of this CSRF vulnerability stems from insufficient validation of request origins and lack of proper anti-CSRF token mechanisms within critical administrative endpoints. Attackers can craft malicious requests that appear to originate from legitimate administrators, leveraging the trust relationship established through session cookies or other authentication methods. The vulnerability specifically targets endpoints that execute arbitrary code and initiate deployment operations to Maven repositories, which are fundamental functions in continuous integration environments. These operations represent high-impact targets because they can directly affect software delivery pipelines, potentially allowing attackers to inject malicious code into build processes or deploy compromised binaries to production repositories.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it enables attackers to compromise entire software development lifecycles. When administrators perform actions such as code execution or binary deployment, the attacker can leverage these privileges to modify build configurations, inject malicious code into source repositories, or manipulate the deployment pipeline to deliver compromised software artifacts. The vulnerability's presence in Maven repository deployment functionality particularly threatens software supply chain integrity, as it allows attackers to compromise the authenticity and security of software packages. This threat is compounded by the fact that Jenkins administrators often possess elevated privileges and access to critical infrastructure components, making successful exploitation potentially devastating for organizational security posture.
Organizations affected by this vulnerability should immediately implement mitigations including updating to the patched versions mentioned in the advisory, specifically Jenkins 1.514, LTS 1.509.1, Enterprise 1.466.14.1, and 1.480.4.1. The implementation of proper anti-CSRF token mechanisms should be enforced across all administrative endpoints, particularly those handling code execution and deployment operations. Security teams should also consider implementing additional controls such as request origin validation, mandatory authentication for all administrative functions, and monitoring for suspicious administrative activities. From a compliance perspective, this vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery vulnerabilities, and maps to ATT&CK technique T1078.004 for valid accounts and T1505.003 for server-side injection, highlighting the multi-faceted nature of the threat. The vulnerability demonstrates the critical importance of maintaining up-to-date software in CI/CD environments where compromised systems can lead to widespread supply chain compromises and code injection attacks.