CVE-2021-23008

CRITICAL

BIG-IP APM <15.1.3,14.1.4,13.1.4,12.1.6,16.0.x,11.6.x - Auth Bypass

Title source: llm
STIX 2.1

Description

On version 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and all versions of 16.0.x and 11.6.x., BIG-IP APM AD (Active Directory) authentication can be bypassed via a spoofed AS-REP (Kerberos Authentication Service Response) response sent over a hijacked KDC (Kerberos Key Distribution Center) connection or from an AD server compromised by an attacker. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://support.f5.com/csp/article/K51213246

Scores

CVSS v3 9.8
EPSS 0.0061
EPSS Percentile 70.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (1)
f5/big-ip_access_policy_manager 11.5.2 - 11.6.5
Published May 10, 2021
Tracked Since Feb 18, 2026