Kimai: Pre-2FA KIMAI_SESSION cookie grants full authenticated REST API access, bypassing TOTP

Summary Two-factor authentication TOTP can be fully bypassed for the REST API. The KIMAISESSION cookie returned in the response to the login request; issued after only the password is verified, before the TOTP step; is already accepted as authenticated by every /api/ endpoint. So after submitting...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the authentication process. An attacker can gain unauthorized access to the REST API by replaying the KIMAISESSION cookie obtained after password verification, bypassing the second authentication factor...