Days after F5 released patches for a critical remote code
execution vulnerability affecting its BIG-IP family of products,
security researchers are warning that they were able to create an
exploit for the shortcoming.
Tracked CVE-2022-1388[1]
(CVSS score: 9.8), the flaw relates to an iControl REST
authentication bypass that, if successfully exploited, could lead
to remote code execution, allowing an attacker to gain initial
access and take control of an affected system.
This could range anywhere from deploying cryptocurrency miners
to deploying web shells for follow-on attacks, such as information
theft and ransomware.
“We have reproduced the fresh CVE-2022-1388 in F5’s BIG-IP,”
cybersecurity company Positive Technologies said[2]
in a tweet on Friday. “Patch ASAP!”
The critical security vulnerability impacts the following
versions of BIG-IP products –
- 16.1.0 – 16.1.2
- 15.1.0 – 15.1.5
- 14.1.0 – 14.1.4
- 13.1.0 – 13.1.4
- 12.1.0 – 12.1.6
- 11.6.1 – 11.6.5
Fixes are available in versions 17.0.0, 16.1.2.2, 15.1.5.1,
14.1.4.6, and 13.1.5. Firmware versions 11.x and 12.x will not
receive security updates and users relying on those versions should
consider upgrading to a newer version or apply the workarounds
–
- Block iControl REST access through the self IP address
- Block iControl REST access through the management interface,
and - Modify the BIG-IP httpd configuration
Last month, cybersecurity authorities from Australia, Canada,
New Zealand, the U.K., and the U.S. jointly warned[3]
that “threat actors aggressively targeted newly disclosed critical
software vulnerabilities against broad target sets, including
public and private sector organizations worldwide.”
With the F5 BIG-IP flaw found trivial to exploit, malicious
hacking crews are expected to follow suit, making it imperative
that affected organizations apply the patches.
Read more https://thehackernews.com/2022/05/researchers-develop-rce-exploit-for.html