CVE-2019-6621

Severity: high (CVSS 7.2 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-07-02 · updated 2026-06-17
Weakness: CWE-78

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, 12.1.0-12.1.4.1, 11.6.1-11.6.3.4, and 11.5.2-11.5.8 and BIG-IQ 7.0.0-7.1.0.2, 6.0.0-6.1.0, and 5.1.0-5.4.0, an undisclosed iControl REST worker is vulnerable to command injection by an admin/resource admin user. This issue impacts both iControl REST and tmsh implementations.

Affected products

F5 BIG-IP APM: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
BIG-IP: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Analytics: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Networks, Inc. BIG-IP (AAM): from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
BIG-IP ASM: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 BIG-IP DNS: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Edge Gateway: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Fraud Protection Service: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Global Traffic Manager: from 11.5.2 through 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Link Controller: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 BIG-IP (LTM): from 11.5.2 before 11.5.8; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.8, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Networks, Inc. BIG-IP (PEM): from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 Big-Ip Webaccelerator: from 11.5.2 before 11.5.9; from 11.6.1 before 11.6.4; from 12.1.0 through 12.1.4; 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 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6
F5 BIG-IQ: from 5.1.0 through 5.4.0; from 6.0.0 through 6.1.0

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; BIG-IP 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; F5 Big-Ip Analytics 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; F5 Networks, Inc. BIG-IP (AAM) 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; BIG-IP ASM 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; F5 BIG-IP DNS 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; F5 Big-Ip Edge Gateway 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; F5 Big-Ip Fraud Protection Service 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; F5 Big-Ip Global Traffic Manager 11.6.4, 13.1.1.5, 14.0.0.5, 14.1.0.6; F5 Big-Ip Link Controller 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5; F5 BIG-IP (LTM) 11.5.8, 11.6.4, 13.1.1.5, 14.0.0.5; F5 Networks, Inc. BIG-IP (PEM) 11.5.9, 11.6.4, 13.1.1.5, 14.0.0.5. Check the vendor advisory for mitigations.

References

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