GHSA-P279-2CQP-84JG OpenDJ SASL PLAIN authzid bypassing the proxy ACI scope check

Summary When a SASL PLAIN bind supplies an authorization identity authzid that resolves to a different user, PlainSASLMechanismHandler verified only the PROXIEDAUTH privilege and never evaluated the "proxy" access-control right the mayProxy ACI scope check. As a result, any account holding the...