Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
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
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.
A TLS connection succeeds which should fail.
-- 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.
There is no workaround at this time.
A remote TLS server certificate with a bad Subject Alternative Name is now rejected when Common Criteria mode is licensed and configured.