CVE-2025-53672 in Kryptowire Plugin
Summary
by MITRE • 07/09/2025
Jenkins Kryptowire Plugin 0.2 and earlier stores the Kryptowire API key unencrypted in its global configuration file on the Jenkins controller, where it can be viewed by users with access to the Jenkins controller file system.
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Analysis
by VulDB Data Team • 07/11/2025
The vulnerability identified as CVE-2025-53672 affects the Jenkins Kryptowire Plugin version 0.2 and earlier, presenting a critical security risk through improper credential handling within the Jenkins ecosystem. This issue stems from the plugin's failure to implement proper encryption mechanisms for storing sensitive authentication credentials, specifically the Kryptowire API key, which is instead persisted in plaintext within the Jenkins controller's file system configuration files. The flaw represents a fundamental breakdown in security best practices for credential management within automated build and deployment environments where Jenkins serves as a central orchestration platform.
The technical implementation of this vulnerability manifests through the plugin's configuration storage mechanism which writes the API key directly to disk without any form of encryption or obfuscation. This design flaw allows any user with file system access to the Jenkins controller to read the plaintext API key, effectively compromising the security boundaries of the entire Jenkins installation. The vulnerability directly maps to CWE-312, which addresses the exposure of sensitive information through improper handling of credentials, and additionally aligns with CWE-522, which covers insufficiently protected credentials storage. Attackers exploiting this vulnerability could potentially gain unauthorized access to Kryptowire services, leading to data exfiltration, service disruption, or unauthorized modifications to the integrated systems.
The operational impact of this vulnerability extends beyond immediate credential compromise, as it fundamentally undermines the security posture of Jenkins environments that utilize the Kryptowire plugin. Organizations relying on Jenkins for continuous integration and deployment workflows face significant risks when API keys are exposed in plaintext, potentially allowing attackers to perform unauthorized operations against Kryptowire services, access sensitive data, or manipulate automated processes. The vulnerability also aligns with ATT&CK technique T1552.001, which covers the theft of credentials from software, and T1078, which addresses valid accounts usage, as compromised API keys can be leveraged for persistence and lateral movement within the affected environments. The risk is particularly elevated in multi-tenant or shared hosting environments where file system access controls may be less stringent.
Mitigation strategies for this vulnerability require immediate action to upgrade to a patched version of the Kryptowire plugin where the API key is properly encrypted and stored. Organizations should implement comprehensive credential rotation procedures to invalidate the compromised API key and deploy additional access controls to limit file system access to the Jenkins controller. The recommended approach includes applying the vendor-provided security patch, implementing proper encryption mechanisms for credential storage, and establishing monitoring for unauthorized file system access attempts. Additionally, organizations should conduct thorough security assessments of all Jenkins plugins to identify similar credential storage vulnerabilities, as this issue may not be isolated to the Kryptowire plugin alone. The remediation process should also include implementing principle of least privilege access controls for Jenkins controller file systems and establishing regular security audits to detect and prevent similar misconfigurations in the future.