CVE-2022-41622

This Metasploit module creates a local user with a username/password and root-level privileges. Note that a root-level account is not required to do this, which makes it a privilege escalation issue. Note that this is pretty noisy, since it creates a user account and creates log files and such. Additionally, most (if not all) vulnerabilities in F5 grant root access anyways.

This Metasploit module exploits a newline injection into an RPM .rpmspec file that permits authenticated users to remotely execute commands. Successful exploitation results in remote code execution as the root user.

This Metasploit module exploits a cross-site request forgery (CSRF) vulnerability in F5 Big-IP's iControl interface to write an arbitrary file to the filesystem. While any file can be written to any location as root, the exploitability is limited by SELinux; the vast majority of writable locations are unavailable. By default, we write to a script that executes at reboot, which means the payload will execute the next time the server boots. An alternate target - Login - will add a backdoor that executes next time a user logs in interactively. This overwrites a file, but we restore it when we get a session Note that because this is a CSRF vulnerability, it starts a web server, but an authenticated administrator must visit the site, which redirects them to the target.

Multiple security vulnerabilities have been disclosed in F5 BIG-IP and BIG-IQ devices that, if successfully exploited, to completely compromise affected systems. Cybersecurity firm Rapid7 said the flaws could be abused to remote access to the devices and defeat security constraints. The two high-severity issues, which were reported to F5 on August 18, 2022, are as follows -

Widespread exploitation deemed ‘unlikely’ given hurdles