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.
Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.
Link | Tags |
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http://www.openwall.com/lists/oss-security/2019/08/07/1 | third party advisory mailing list |
https://jenkins.io/security/advisory/2019-08-07/#SECURITY-795 | vendor advisory |