CVE-2022-43429 in Topaz for Total Test Plugin
Summary
by MITRE • 10/19/2022
Jenkins Compuware Topaz for Total Test Plugin 2.4.8 and earlier implements an agent/controller message that does not limit where it can be executed, allowing attackers able to control agent processes to read arbitrary files on the Jenkins controller file system.
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Analysis
by VulDB Data Team • 05/09/2025
The vulnerability identified as CVE-2022-43429 affects the Jenkins Compuware Topaz for Total Test Plugin version 2.4.8 and earlier, representing a critical security flaw that undermines the integrity of Jenkins continuous integration environments. This issue stems from improper implementation of agent/controller communication mechanisms within the plugin's architecture, creating a pathway for privilege escalation and unauthorized data access. The vulnerability specifically targets the message handling system that governs interactions between Jenkins agents and the central controller, where insufficient validation allows malicious actors to manipulate execution contexts.
The technical flaw manifests in the plugin's failure to properly validate or restrict the execution context of certain agent messages, enabling attackers who have compromised agent processes to leverage this weakness for arbitrary file system access on the Jenkins controller. This represents a classic case of insufficient input validation and improper access control, where the plugin does not adequately verify the source or destination of communication messages. The vulnerability operates at the intersection of agent-based execution and controller privilege boundaries, allowing lateral movement from compromised agents to the central controller's file system. This flaw aligns with CWE-284, which addresses improper access control, and CWE-264, covering permissions, privileges, and access control issues.
The operational impact of this vulnerability extends beyond simple unauthorized file access, as it enables attackers to potentially extract sensitive configuration data, build artifacts, credentials stored in the Jenkins environment, or other confidential information residing on the controller's file system. Attackers could leverage this access to escalate privileges within the Jenkins environment, potentially gaining access to additional systems or data that the controller manages. The vulnerability is particularly dangerous in environments where Jenkins controllers handle sensitive corporate data or where agent compromise occurs through other attack vectors. This weakness can be exploited to perform reconnaissance activities, extract secrets, or establish persistence within the CI/CD pipeline, making it a significant threat to software development security.
Mitigation strategies for CVE-2022-43429 should prioritize immediate plugin version updates to 2.4.9 or later, which contain the necessary fixes for the message handling implementation. Organizations should implement network segmentation to limit agent-controller communication to trusted environments and consider implementing additional monitoring for unusual file system access patterns on Jenkins controllers. The vulnerability also highlights the importance of principle of least privilege in CI/CD environments, where agents should only have access to resources necessary for their specific tasks. Security teams should conduct comprehensive audits of all Jenkins plugins to identify similar implementation flaws and ensure proper access controls are in place. This vulnerability demonstrates the critical need for secure coding practices in distributed systems and aligns with ATT&CK technique T1078 for valid accounts and T1566 for credential access, emphasizing the importance of protecting controller environments from compromised agent processes.