Related Vulnerabilities: CVE-2021-37156  

Redmine 4.2.0 and 4.2.1 allow existing user sessions to continue upon enabling two-factor authentication for the user's account, but the intended behavior is for those sessions to be terminated.

Severity Low

Remote Yes

Type Authentication bypass

Description

Redmine 4.2.0 and 4.2.1 allow existing user sessions to continue upon enabling two-factor authentication for the user's account, but the intended behavior is for those sessions to be terminated.

AVG-1920 redmine 4.2.1-1 Medium Vulnerable

https://www.redmine.org/projects/redmine/wiki/Security_Advisories
https://www.redmine.org/issues/35417
https://github.com/redmine/redmine/commit/ee0d822517154878a2ad33be66b820c6b68d077b