CVE-2022-33968: BIG-IP LTM and APM NTLM vulnerability CVE-2022-33968

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-08-04 · updated 2026-06-17
Weakness: CWE-125

Description

In BIG-IP Versions 17.0.x before 17.0.0.1, 16.1.x before 16.1.3.1, 15.1.x before 15.1.6.1, 14.1.x before 14.1.5.1, and all versions of 13.1.x, when an LTM monitor or APM SSO is configured on a virtual server, and NTLM challenge-response is in use, undisclosed traffic can cause a buffer over-read. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 BIG-IP APM: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
BIG-IP: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 Big-Ip Analytics: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 Networks, Inc. BIG-IP (AAM): from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
BIG-IP ASM: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 BIG-IP DNS: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 Big-Ip Fraud Protection Service: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 Big-Ip Global Traffic Manager: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 Big-Ip Link Controller: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 BIG-IP (LTM): from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1
F5 Networks, Inc. BIG-IP (PEM): from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.1; from 15.1.0 before 15.1.6.1; from 16.1.0 before 16.1.3.1; 17.0.0 — fixed in 14.1.5.1, 15.1.6.1, 16.1.3.1

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 14.1.5.1, 15.1.6.1, 16.1.3.1; BIG-IP 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 Big-Ip Analytics 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 Networks, Inc. BIG-IP (AAM) 14.1.5.1, 15.1.6.1, 16.1.3.1; BIG-IP ASM 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 BIG-IP DNS 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 Big-Ip Fraud Protection Service 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 Big-Ip Global Traffic Manager 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 Big-Ip Link Controller 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 BIG-IP (LTM) 14.1.5.1, 15.1.6.1, 16.1.3.1; F5 Networks, Inc. BIG-IP (PEM) 14.1.5.1, 15.1.6.1, 16.1.3.1. Check the vendor advisory for mitigations.

References

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