CVE-2021-22981

https://notcve.org/view.php?id=CVE-2021-22981

On all versions of BIG-IP 12.1.x and 11.6.x, the original TLS protocol includes a weakness in the master secret negotiation that is mitigated by the Extended Master Secret (EMS) extension defined in RFC 7627. TLS connections that do not use EMS are vulnerable to man-in-the-middle attacks during renegotiation. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated. En todas las versiones de BIG-IP 12.1.x y 11.6.x, el protocolo TLS original incluye una debilidad en la negociación del secreto maestro que es mitigada por la extensión Extended Master Secret (EMS) definida en RFC 7627. Las conexiones TLS que no utilizan EMS son vulnerables a ataques man-in-the-middle durante la renegociación. • https://support.f5.com/csp/article/K09121542 •