Description
A session fixation vulnerability in Jenkins Gitlab Authentication Plugin 1.4 and earlier in GitLabSecurityRealm.java allows unauthorized attackers to impersonate another user if they can control the pre-authentication session.
Remediation
References
http://www.openwall.com/lists/oss-security/2019/08/07/1
https://jenkins.io/security/advisory/2019-08-07/#SECURITY-795
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