CVE-2019-6614

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-05-03 · updated 2026-06-17

Description

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, internal methods used to prevent arbitrary file overwrites in Appliance Mode were not fully effective. An authenticated attacker with a high privilege level may be able to bypass protections implemented in appliance mode to overwrite arbitrary system 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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2
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 14.1.0.2 — fixed in 12.1.4.1, 13.1.1.5, 14.1.0.2

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 12.1.4.1, 13.1.1.5, 14.1.0.2; BIG-IP 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 Big-Ip Analytics 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 Networks, Inc. BIG-IP (AAM) 12.1.4.1, 13.1.1.5, 14.1.0.2; BIG-IP ASM 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 BIG-IP DNS 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 Big-Ip Edge Gateway 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 Big-Ip Fraud Protection Service 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 Big-Ip Global Traffic Manager 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 Big-Ip Link Controller 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 BIG-IP (LTM) 12.1.4.1, 13.1.1.5, 14.1.0.2; F5 Networks, Inc. BIG-IP (PEM) 12.1.4.1, 13.1.1.5, 14.1.0.2. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2019-6614 or the next vulnerability affects your stack