CVE-2019-6632

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-07-03 · updated 2026-06-17
Weakness: CWE-330

Description

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, under certain circumstances, attackers can decrypt configuration items that are encrypted because the vCMP configuration unit key is generated with insufficient randomness. The attack prerequisite is direct access to encrypted configuration and/or UCS files.

Affected products

F5 BIG-IP APM: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
BIG-IP: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Analytics: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Networks, Inc. BIG-IP (AAM): from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
BIG-IP ASM: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 BIG-IP DNS: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Edge Gateway: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Fraud Protection Service: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Global Traffic Manager: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Link Controller: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 BIG-IP (LTM): from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Networks, Inc. BIG-IP (PEM): from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Webaccelerator: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; BIG-IP 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Big-Ip Analytics 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Networks, Inc. BIG-IP (AAM) 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; BIG-IP ASM 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 BIG-IP DNS 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Big-Ip Edge Gateway 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Big-Ip Fraud Protection Service 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Big-Ip Global Traffic Manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Big-Ip Link Controller 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 BIG-IP (LTM) 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Networks, Inc. BIG-IP (PEM) 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6. Check the vendor advisory for mitigations.

References

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