Bug ID 706631: A remote TLS server certificate with a bad Subject Alternative Name should be rejected when Common Criteria mode is licensed and configured.

Last Modified: Dec 11, 2018

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5

Fixed In:
14.1.0, 14.0.0, 13.1.0.6, 12.1.3.4

Opened: Feb 14, 2018
Severity: 2-Critical

Symptoms

According to RFC2818, if the certificate sent by the TLS server has a valid Common Name, but the Subject Alternative Name does not match the Authenticate Name in the server-ssl profile, the connection should be terminated.

Impact

A TLS connection succeeds which should fail.

Conditions

-- A server-ssl profile is enabled on a virtual server and has the 'authenticate-name' property set. -- The TLS server presents a certificate in which the Subject Alternative Name does not match the configured authenticate-name. -- Common Criteria mode licensed and configured.

Workaround

There is no workaround at this time.

Fix Information

A remote TLS server certificate with a bad Subject Alternative Name is now rejected when Common Criteria mode is licensed and configured.

Behavior Change