CVE-2021-22976 Information

Description

On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1 15.1.x before 15.1.2 14.1.x before 14.1.3.1 13.1.x before 13.1.3.6 and all 12.1.x versions when the BIG-IP ASM system processes WebSocket requests with JSON payloads an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. 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/K88230177

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