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CVE-2017-17716

5.9 · MEDIUM

GitLab 9.4.x before 9.4.2 does not support LDAP SSL certificate verification, but a verify_certificates LDAP option was mentioned in the 9.4 release announcement.

Published Dec 17, 2017CWE-295EPSS 0.93%

Overview

CVE-2017-17716 is a medium-severity vulnerability. It was published on December 17, 2017 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

GitLab 9.4.x before 9.4.2 does not support LDAP SSL certificate verification, but a verify_certificates LDAP option was mentioned in the 9.4 release announcement. This issue occurred because code was not merged. This is related to use of the omniauth-ldap library and the gitlab_omniauth-ldap gem.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refabout.gitlab.com/2017/07/22/gitlab-9-4-released/#security---add-ldap-ssl-certificate-verificationRefabout.gitlab.com/2017/07/28/gitlab-9-dot-4-dot-2-released/Refgitlab.com/gitlab-org/gitlab-ce/issues/30420Refabout.gitlab.com/2017/07/22/gitlab-9-4-released/#security---add-ldap-ssl-certificate-verificationRefabout.gitlab.com/2017/07/28/gitlab-9-dot-4-dot-2-released/Refgitlab.com/gitlab-org/gitlab-ce/issues/30420

How CyberStrike helps

Frequently asked questions

What is CVE-2017-17716?

CVE-2017-17716 is a medium-severity vulnerability. It was published on December 17, 2017 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

How severe is CVE-2017-17716?

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-17716?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-17716?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-17716 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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