CVE-2019-10452 in View26 Test-Reporting Plugin
Summary
by MITRE
Jenkins View26 Test-Reporting Plugin stores credentials unencrypted in job config.xml files on the Jenkins master where they can be viewed by users with Extended Read permission, or access to the master file system.
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Analysis
by VulDB Data Team • 10/16/2019
The vulnerability identified as CVE-2019-10452 affects the Jenkins View26 Test-Reporting Plugin, presenting a critical security flaw in how credentials are handled within the Jenkins continuous integration and delivery platform. This issue stems from the plugin's improper storage of authentication credentials in plain text format within job configuration files, specifically in the config.xml files that reside on the Jenkins master server. The flaw represents a direct violation of security best practices and exposes sensitive authentication information to unauthorized access vectors.
The technical implementation of this vulnerability occurs when the View26 Test-Reporting Plugin processes job configurations and persists credential data without appropriate encryption mechanisms. When Jenkins jobs are configured to utilize credentials for test reporting purposes, the plugin serializes these credentials directly into the XML configuration files without any form of encryption or obfuscation. This creates a situation where any user with Extended Read permission on the Jenkins instance can access these configuration files and extract the stored credentials in cleartext format. Additionally, individuals with direct file system access to the Jenkins master server can also retrieve these unencrypted credentials, significantly expanding the attack surface.
The operational impact of this vulnerability is severe and multifaceted, affecting organizations that rely on Jenkins for automated testing and deployment processes. Attackers who gain access to these credentials can potentially compromise entire CI/CD pipelines, gain unauthorized access to external systems, databases, or repositories that the Jenkins jobs interact with, and escalate their privileges within the infrastructure. The vulnerability affects the principle of least privilege, as users who should only have read access to job configurations can extract sensitive authentication information that could be used for lateral movement or privilege escalation attacks. This issue directly relates to CWE-312, which addresses the exposure of sensitive information through improper encryption or storage of credentials, and aligns with ATT&CK technique T1555.003 for credentials from password stores, as the unencrypted credentials stored in configuration files effectively function as a password store.
Organizations should immediately implement multiple layers of mitigation to address this vulnerability. The most critical step involves upgrading to a patched version of the View26 Test-Reporting Plugin where credentials are properly encrypted or handled through Jenkins' built-in credential management systems. Administrators should also enforce strict access controls and privilege management, ensuring that only authorized personnel have Extended Read permissions or direct file system access to the Jenkins master. Additional mitigation strategies include implementing proper network segmentation to limit access to the Jenkins master server, regularly auditing access logs for unauthorized configuration file access attempts, and conducting comprehensive security reviews of all Jenkins plugins to identify similar vulnerabilities. The remediation process should also involve rotating all affected credentials and implementing automated monitoring for unauthorized access to configuration files, as this vulnerability can persist even after patching if proper access controls are not enforced.