CVE-2021-23000 Information

Description

On BIG-IP versions 13.1.3.4-13.1.3.6 and 12.1.5.2 if the tmm.http.rfc.enforcement BigDB key is enabled in a BIG-IP system or the Bad host header value is checked in the AFM HTTP security profile associated with a virtual server in rare instances a specific sequence of malicious requests may cause TMM to restart. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://support.f5.com/csp/article/K34441555

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5