CVE-2025-31727 in AsakusaSatellite Plugin
Summary
by MITRE • 04/02/2025
Jenkins AsakusaSatellite Plugin 0.1.1 and earlier stores AsakusaSatellite API keys unencrypted in job config.xml files on the Jenkins controller where they can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.
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Analysis
by VulDB Data Team • 04/03/2025
The vulnerability identified as CVE-2025-31727 affects the Jenkins AsakusaSatellite Plugin version 0.1.1 and earlier, presenting a critical security risk through improper credential storage practices. This flaw allows sensitive API keys to be stored in plain text within the job configuration files, creating an attack surface that can be exploited by unauthorized users who possess minimal privileges. The plugin's failure to implement proper encryption mechanisms for storing authentication credentials directly undermines the security posture of Jenkins environments that rely on this functionality for automated deployment and orchestration tasks.
The technical implementation of this vulnerability stems from the plugin's design decision to persist API keys in the job configuration XML files without any form of encryption or obfuscation. When administrators configure jobs that utilize AsakusaSatellite for deployment operations, the plugin serializes the API credentials directly into the config.xml file on the Jenkins controller. This approach violates fundamental security principles outlined in the OWASP Top Ten and aligns with CWE-312, which specifically addresses the exposure of sensitive information through improper data handling. The configuration files are typically stored in the Jenkins home directory, making them accessible through various attack vectors including direct file system access, privilege escalation, or even through Jenkins' built-in file browsing capabilities when proper access controls are not enforced.
The operational impact of this vulnerability extends beyond simple credential exposure, as it creates a persistent risk for organizations that depend on automated deployment workflows. Users with Item/Extended Read permission can directly access job configuration files and extract API keys, potentially enabling them to perform unauthorized operations against AsakusaSatellite services. This threat vector aligns with ATT&CK technique T1552.001, which covers the acquisition of credentials through unencrypted files. The vulnerability affects not only direct system administrators but also any user who can read job configurations, potentially including developers, auditors, or other personnel with read-only access to Jenkins jobs. Organizations utilizing this plugin for continuous integration and deployment pipelines face significant risk of service compromise, data exfiltration, and unauthorized access to downstream systems that rely on AsakusaSatellite for automation.
Mitigation strategies for this vulnerability should focus on immediate remediation through plugin version updates, as the issue is resolved in versions beyond 0.1.1. Organizations must also implement comprehensive access control measures, ensuring that only authorized personnel possess Item/Extended Read permissions for critical jobs. The Jenkins security configuration should enforce strict file system permissions and implement proper privilege separation between different user roles. Additionally, administrators should conduct thorough audits of existing job configurations to identify and remove any exposed API keys, followed by reconfiguration using secure credential management approaches. Organizations should consider implementing Jenkins credential binding mechanisms and external secret management solutions to prevent future occurrences of similar vulnerabilities, aligning with security frameworks such as NIST SP 800-53 and ISO 27001 controls for secure configuration management and access control. The vulnerability serves as a reminder of the critical importance of secure credential handling practices in CI/CD environments and the need for regular security assessments of third-party plugins.