CVE-2019-10441 in iceScrum Plugin
Summary
by MITRE
A cross-site request forgery vulnerability in Jenkins iceScrum Plugin 1.1.5 and earlier allowed attackers to connect to an attacker-specified URL using attacker-specified credentials.
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Analysis
by VulDB Data Team • 10/16/2019
The cross-site request forgery vulnerability identified as CVE-2019-10441 affects the iceScrum plugin for Jenkins versions 1.1.5 and earlier, representing a critical security flaw that undermines the integrity of web-based application interactions. This vulnerability resides within the plugin's handling of HTTP requests and authentication mechanisms, creating a pathway for malicious actors to exploit the trust relationship between users and the Jenkins server. The flaw specifically enables unauthorized actions to be performed on behalf of authenticated users without their knowledge or consent, fundamentally compromising the security model of the continuous integration platform.
The technical implementation of this CSRF vulnerability stems from the absence of proper validation mechanisms for cross-origin requests within the iceScrum plugin's web interface. Attackers can craft malicious requests that leverage the authenticated session of a legitimate user to perform actions against the Jenkins server, including connecting to arbitrary URLs using specified credentials. This occurs because the plugin fails to implement anti-CSRF tokens or other protective measures that would verify the authenticity of requests originating from the intended source. The vulnerability manifests when users visit malicious websites or click on compromised links that automatically submit requests to the Jenkins instance, exploiting the browser's automatic handling of cookies and authentication state.
The operational impact of this vulnerability extends beyond simple data exposure, as it provides attackers with the capability to execute arbitrary actions within the Jenkins environment using the privileges of authenticated users. This could enable attackers to access sensitive build configurations, manipulate project settings, or even gain access to underlying system resources depending on the user's permission levels. The vulnerability is particularly concerning in enterprise environments where Jenkins serves as a central hub for software development workflows, as it could allow attackers to disrupt development processes, access confidential source code repositories, or compromise the integrity of the entire CI/CD pipeline. The attack vector requires minimal user interaction, making it particularly dangerous as users may unknowingly trigger malicious requests while browsing compromised websites or opening malicious email attachments.
Organizations affected by this vulnerability should prioritize immediate remediation through updating the iceScrum plugin to version 1.1.6 or later, which contains the necessary patches to address the CSRF implementation flaws. Additionally, implementing proper input validation and CSRF token mechanisms should be enforced across all Jenkins plugins to prevent similar vulnerabilities from emerging. Security teams should conduct comprehensive audits of all installed Jenkins plugins to identify potential CSRF vulnerabilities and ensure that authentication contexts are properly validated for each request. The vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery issues, and represents a clear violation of the principle of least privilege in web application security. From an ATT&CK framework perspective, this vulnerability maps to techniques involving credential access and privilege escalation, as attackers can leverage the authenticated session to perform unauthorized operations within the Jenkins environment, potentially leading to broader system compromise and persistent access to development infrastructure.