A flaw was found in the Keylime registrar that could allow a bypass of the challenge-response protocol during agent registration. This issue may allow an attacker to impersonate an agent and hide the true status of a monitored machine if the fake agent is added to the verifier list by a legitimate user, resulting in a breach of the integrity of the registrar database.

An Insecure Direct Object Reference (IDOR) vulnerability exists in the vehicleId parameter, allowing unauthorized access to sensitive information of other users’ vehicles. Exploiting this issue enables an attacker to retrieve data such as GPS coordinates, encryption keys, initialization vectors, model numbers, and fuel statistics belonging to other users, instead of being limited to their own vehicle data. The fix for this vulnerability is a server-side authorization fix.