CVE-2023-40344 in Delphix Plugin
Summary
by MITRE • 08/16/2023
A missing permission check in Jenkins Delphix Plugin 3.0.2 and earlier allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 09/10/2023
The vulnerability identified as CVE-2023-40344 represents a critical permission bypass flaw within the Jenkins Delphix Plugin version 3.0.2 and earlier. This issue stems from a missing permission check that allows unauthorized users with only Overall/Read permission to enumerate credential identifiers stored within the Jenkins system. The flaw fundamentally undermines the principle of least privilege by enabling attackers to discover sensitive credential information without possessing the necessary elevated permissions typically required for such operations.
The technical implementation of this vulnerability resides in the Delphix Plugin's insufficient access control mechanisms. When users with Overall/Read permission attempt to interact with credential management functions, the plugin fails to validate whether the requesting user possesses the appropriate authorization level to access credential IDs. This missing validation creates an information disclosure pathway where attackers can systematically enumerate available credential identifiers through API calls or web interface interactions. The vulnerability specifically affects the plugin's credential enumeration functionality, which should require either administrative privileges or explicit credential access permissions to operate correctly.
From an operational impact perspective, this vulnerability poses significant risks to Jenkins environments that rely on credential management for database connections, API access, and other sensitive operations. Attackers who can enumerate credential IDs gain valuable intelligence for subsequent attack phases, including potential credential stuffing attacks, brute force attempts against discovered credentials, or exploitation of weak credential practices. The information disclosure affects the confidentiality aspect of the CIA triad, as it exposes internal credential structures that should remain protected from unauthorized access. This vulnerability particularly impacts organizations using Delphix plugin for database provisioning and backup operations where credentials are used to access production databases and critical systems.
The vulnerability aligns with CWE-284, which addresses improper access control, and represents a classic case of insufficient authorization checking. It also maps to ATT&CK technique T1552.001, credential access through the use of stolen credentials, as the enumeration capability enables attackers to gather information needed for credential-based attacks. Organizations should consider this vulnerability as part of a broader credential management security posture assessment, particularly in environments where Jenkins serves as a central automation hub. The flaw demonstrates the importance of implementing comprehensive access control validation throughout all plugin components and highlights the need for regular security assessments of third-party Jenkins plugins.
Mitigation strategies should include immediate upgrade to Jenkins Delphix Plugin version 3.0.3 or later, which contains the necessary permission checks to address this vulnerability. Organizations should also implement additional monitoring for credential enumeration activities and review existing access control policies to ensure proper privilege assignment. Security teams should conduct comprehensive audits of all Jenkins plugins to identify similar permission bypass vulnerabilities and establish regular security assessment procedures for automation platforms. The fix implemented in the updated plugin version enforces proper authorization checks before allowing credential ID enumeration, thereby restoring the intended access control mechanisms and protecting against unauthorized credential discovery.