CVE-2023-37951 in mabl Plugin
Summary
by MITRE • 07/12/2023
Jenkins mabl Plugin 0.0.46 and earlier does not set the appropriate context for credentials lookup, allowing attackers with Item/Configure permission to access and capture credentials they are not entitled to.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 08/02/2023
The vulnerability identified as CVE-2023-37951 affects the mabl Plugin version 0.0.46 and earlier within the Jenkins continuous integration and delivery platform. This issue represents a critical access control flaw that undermines the security boundaries designed to protect sensitive credential information within Jenkins environments. The mabl plugin integrates with the mabl automated testing platform, enabling Jenkins to execute automated tests and manage test environments, making it a valuable target for attackers seeking to escalate their privileges and access additional system resources.
The technical flaw stems from improper context handling during credential lookup operations within the plugin's code implementation. Specifically, the plugin fails to properly validate or enforce the security context when retrieving credentials from Jenkins' credential store. This misconfiguration allows authenticated users with minimal permissions to exploit the vulnerability and access credentials that should be restricted to authorized personnel only. The flaw exists because the plugin does not properly isolate credential access based on the security context of the requesting user or job, creating an avenue for privilege escalation through unauthorized credential exposure.
From an operational impact perspective, this vulnerability enables attackers with Item/Configure permission to potentially capture sensitive information including API keys, database credentials, and other authentication tokens that may be stored within Jenkins' credential management system. The attack vector is particularly concerning because it requires only relatively low-level permissions that many users might possess in typical Jenkins environments, making the vulnerability exploitable by individuals who should not have access to such sensitive data. This could lead to unauthorized access to downstream systems, data breaches, and potential compromise of entire CI/CD pipelines.
Security practitioners should implement immediate mitigations including upgrading the mabl plugin to version 0.0.47 or later, which contains the necessary patches to address the credential context handling issue. Organizations should also review and enforce least privilege access controls, ensuring that users with Item/Configure permissions are strictly limited to the resources they require for their legitimate operations. Additionally, monitoring for unauthorized credential access attempts and implementing proper audit logging for credential usage can help detect potential exploitation of this vulnerability. This issue aligns with CWE-284 Access Control Flaws and represents a specific instance of improper privilege enforcement within Jenkins plugin architecture, potentially supporting techniques described in the ATT&CK framework under credential access and privilege escalation categories.