Analysis of CSRF Vulnerability in Jenkins Lucene-Search Plugin (CVE-2023-30529)

Executive Summary

The Jenkins Lucene-Search Plugin has been identified with a significant vulnerability indexed as CVE-2023-30529. This vulnerability is classified as a Cross-Site Request Forgery (CSRF) flaw, allowing remote attackers to exploit the system by reindexing the database without proper authorization. The affected versions include Jenkins Lucene-Search Plugin versions 387.v938a_ecb_f7fe9 and earlier. Immediate action is recommended for organizations utilizing these versions to prevent potential exploitation.

Technical Information

The vulnerability within the Jenkins Lucene-Search Plugin arises from the absence of CSRF protections for a specific HTTP endpoint. Attackers can exploit this flaw to execute actions on behalf of users without their consent, specifically targeting the reindexing function of the database. This is achievable because the affected plugin versions do not enforce POST request requirements for sensitive operations, leaving the system exposed to unauthorized manipulation.

Exploiting this vulnerability does not require privileges, making it an attractive target for attackers. The attack vector is categorized as Network, with low complexity, and user interaction is necessary to initiate the exploit. Despite the low complexity, the impact on data integrity is classified as low, with no effect on confidentiality or availability.

The Common Vulnerability Scoring System (CVSS) v3.1 assigns this vulnerability a base score of 4.3, indicating a medium severity level. The vector string is defined as CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Exploitation in the Wild

As of the time of this report, there have been no documented cases of active exploitation of CVE-2023-30529 in the wild. However, given the low barrier to entry for potential attackers and the widespread use of Jenkins environments, the threat remains viable. Organizations are advised to remain vigilant and proactive in addressing this vulnerability.

APT Groups using this vulnerability

There is no specific information available on APT groups actively exploiting this vulnerability. However, given the nature of Jenkins environments, which are often integral to CI/CD pipelines, there exists a potential interest from threat actors seeking to disrupt software development processes or inject malicious code.

Affected Product Versions

The vulnerability affects the Jenkins Lucene-Search Plugin versions up to and including 387.v938a_ecb_f7fe9. Users of these versions are urged to assess their systems and apply necessary updates to remediate the vulnerability.

Workaround and Mitigation

To mitigate the risks associated with CVE-2023-30529, it is crucial to upgrade to a patched version of the Jenkins Lucene-Search Plugin that resolves the CSRF vulnerability. Additionally, implementing security controls to enforce POST request requirements for all sensitive operations is recommended. Continuous monitoring of network and application logs for anomalies can help detect and prevent exploitation attempts.

References

For further information on CVE-2023-30529, please consult the following resources: - NVD Entry for CVE-2023-30529 - Jenkins Security Advisory - Openwall Security Mailing List Discussion

Additional resources for understanding tactics and techniques employed by attackers can be found at: - MITRE ATT&CK Framework - Tactics and Techniques

Rescana is here for you

Rescana is committed to helping organizations navigate the complex landscape of cybersecurity threats. Our Third Party Risk Management (TPRM) platform is designed to identify, assess, and mitigate risks associated with third-party software and services. For further inquiries or assistance, please contact us at ops@rescana.com. We are here to support you in securing your environments against vulnerabilities like CVE-2023-30529 and beyond.