Description When NGINX Plus or NGINX Open Source is configured with sslsessioncache

When NGINX Plus or NGINX Open Source is configured with sslsessioncache shared:<name>:<size> without an explicit sslsessionticketkey file directive to automatically rotate SSL session ticket keys, a remote unauthenticated attacker is able to forge client SSL sessions in a non-deterministic manner that is beyond the attacker's control. An attacker could leverage this vulnerability to bypass verification of client certificates.