CVE-2022-43431 is a medium-severity vulnerability affecting the Jenkins Compuware Strobe Measurement Plugin version 1.0.1 and earlier. The vulnerability arises because the plugin does not perform proper permission checks on a specific HTTP endpoint. This flaw allows attackers who already have Overall/Read permission within Jenkins to enumerate credential IDs stored in the Jenkins instance. The vulnerability is classified under CWE-862, which refers to improper authorization. The CVSS v3.1 score is 4.3, reflecting a network attack vector with low attack complexity, requiring privileges (Overall/Read permission), no user interaction, and impacting confidentiality only (limited to credential ID enumeration). There is no impact on integrity or availability. The vulnerability does not allow direct credential disclosure but enables attackers to enumerate credential identifiers, which could be leveraged in further attacks or reconnaissance within the Jenkins environment. No known exploits are reported in the wild, and no patches have been linked yet. The vulnerability affects unspecified versions up to 1.0.1 of the plugin. Since Jenkins is widely used for continuous integration and continuous deployment (CI/CD) pipelines, this vulnerability could expose sensitive information about stored credentials, potentially aiding attackers in lateral movement or privilege escalation within the build environment.

For European organizations, this vulnerability poses a moderate risk primarily to the confidentiality of sensitive credential information stored in Jenkins environments. Organizations using Jenkins with the Compuware Strobe Measurement Plugin could have their credential IDs enumerated by users with read-level access, which might be internal users or attackers who have compromised low-privilege accounts. While the vulnerability does not directly disclose credential secrets, enumerating credential IDs can facilitate targeted attacks, such as credential harvesting or privilege escalation, especially in complex CI/CD pipelines that integrate with critical infrastructure or production systems. This could lead to unauthorized access to build environments, source code repositories, or deployment targets. Given the widespread adoption of Jenkins in European enterprises across sectors such as finance, manufacturing, and technology, the vulnerability could be leveraged in supply chain attacks or insider threat scenarios. However, the requirement for Overall/Read permission limits the scope to users who already have some level of access, reducing the risk from external attackers without credentials. The absence of known exploits in the wild suggests limited active exploitation but does not eliminate the risk of future attacks.

European organizations should implement the following specific mitigations: 1) Immediately audit Jenkins instances to identify the presence of the Compuware Strobe Measurement Plugin version 1.0.1 or earlier and remove or disable the plugin if it is not essential. 2) Restrict Overall/Read permissions strictly to trusted users only, employing the principle of least privilege to minimize the number of users who can access Jenkins with these permissions. 3) Monitor Jenkins logs for unusual access patterns or enumeration attempts targeting the plugin's HTTP endpoints. 4) Apply network segmentation and access controls to Jenkins servers to limit exposure to internal users and reduce the attack surface. 5) Stay updated with Jenkins project advisories for patches or updates addressing this vulnerability and apply them promptly once available. 6) Consider implementing additional credential management controls, such as credential rotation and auditing, to mitigate risks if credential IDs are enumerated. 7) Use multi-factor authentication (MFA) for Jenkins access to reduce the risk of compromised accounts being used to exploit this vulnerability.