SB2017121706 - Improper Certificate Validation in GitLab, Gitlab Community Edition
Published: December 17, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017121706
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2017-17716)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
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
Install update from vendor's website.