#VU51495 OS Command Injection in BIG-IP Advanced WAF and BIG-IP ASM - CVE-2021-22989
Published: March 16, 2021
Vulnerability identifier: #VU51495
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-22989
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
BIG-IP Advanced WAF
BIG-IP ASM
BIG-IP Advanced WAF
BIG-IP ASM
Software vendor:
F5 Networks
F5 Networks
Description
The vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation within the Traffic Management User Interface (TMUI), when running in Appliance mode with Advanced WAF or ASM provisioned. A remote privileged user with the roles Administrator, Resource Administrator, or Application Security Administrator with network access to the Configuration utility, through the BIG-IP management port or self IP addresses can send specially crafted request to the system and execute arbitrary OS commands.
Remediation
Install updates from vendor's website.