vulnerability

F5 Networks: CVE-2021-22981: K09121542: BIG-IP SSL/TLS vulnerability CVE-2021-22981

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
2021-02-10
Added
2021-02-11
Modified
2024-08-23

Description

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.

Solution

f5-big-ip-upgrade-latest
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.