Critical F5 BIG-IP flaw allows device takeover, patch ASAP! (CVE-2022-1388)

F5 Networks’ BIG-IP multi-purpose networking devices/modules are vulnerable to unauthenticated remote code execution attacks via CVE-2022-1388.

“This vulnerability may allow an unauthenticated attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands, create or delete files, or disable services,” F5 warned yesterday.

It should be noted that vulnerabilities affecting BIG-IP devices are often exploited by various hackers, including state-sponsored ones, so organizations might want to hurry up and patch.

Blocking iControl REST access through the self IP address.

In general, not exposing BIG-IP’s management interface to the internet is good advice, though apparently not taken by many organizations: According to the results of Nate Warfield’s Shodan search, there are over 16,000 BIG-IP devices eposed on the internet out there.

According to F5 Networks, 48 of the Fortune 50 companies use BIG-IP networking devices/modules as server load balancers, access gateways, and application delivery controllers and firewalls, to manage and inspect network and application traffic.

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