We would like to bring to your attention a newly discovered authentication bypass vulnerability within FortiOS, FortiProxy and FortiSwitchManager. This vulnerability is currently being actively exploited.
An authentication bypass has been identified using an alternate path or channel vulnerability [CWE-288] in FortiOS, FortiProxy and FortiSwitchManager which allows an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests. The vulnerability has been issued the identifier CVE-2022-40684 and has been given a CVSS score of 9.6.
Affected Products
-
FortiOS version 7.2.0 through 7.2.1
-
FortiOS version 7.0.0 through 7.0.6
-
FortiProxy version 7.2.0
-
FortiProxy version 7.0.0
-
FortiSwitchManager version 7.2.0
-
FortiSwitchManager version 7.0.0
Detection
The current version of FortiOS / FortiGate can be checked with the following command, and should be checked against the known affected products above:
get system status
Fortinet also recommends to check the device’s log for the following strings to help detected compromised devices:
-
user=”Local_Process_Access”
-
user_interface=”Node.js”
-
user_interface=”Report Runner”
Exploited hosts may show records for these strings.
Remediation
Whilst a workaround has been provided, current best guidance for remediating this issue to update to an unaffected version.
-
FortiOS should be updated to version 7.2.2 or above and version 7.0.7 or above.
-
FortiProxy should be updated to version 7.2.1 or above and version 7.0.7 or above.
-
FortiSwitchManager should be updated to version 7.2.1 or above.
References
The growing impact of nation-state cyber-attacks on businesses
Nation-state cyber threats no longer stop at government and defense. Here’s what makes these attackers different, and what it actually takes to raise the bar against…
Swarm spotlight on the community: Thomas Cox on hacking, humanity, and the future of cybersecurity.
In this episode of Swarm Spotlight, Jayson E. Street sits down with national security and cybersecurity veteran Thomas Cox for a candid conversation on hacker culture,…
The pod was never truly isolated.
“Just a container” is a comforting idea, but it’s usually wrong. Once someone gains execution inside a pod, the real question isn’t whether they can escape…