Keyfactor EJBCA vulnerabilities

Keyfactor EJBCA through 9.3.3 performs insufficient authorization checks when self-renewing a client certificate via the RA (Registration Authority) User Interface. This allows a remote user, authenticated with a valid client certificate, to renew their certificate even if the end entity status and/or profile settings should deny renewal. The attacker must have a valid TLS client certificate, and must be authorized to use the RA User Interface, either with the certificate, or via a role membership for PublicAccessAuthenticationToken.

An issue was discovered in Keyfactor EJBCA 9. When an administrator is removed from its administrator role while having a valid TLS session, EJBCA may, in certain circumstances, cache authentication for longer than the configured maximum time (default: 30 seconds), resulting in the former administrator retaining access they should no longer have.

In Keyfactor EJBCA before version 8.0.0, the RA web certificate distribution servlet /ejbca/ra/cert allows partial denial of service due to an authentication issue. In configurations using OAuth, disclosure of CA certificates (attributes and public keys) to unauthenticated or less privileged users may occur.