Need information on CSB-221006-1

[imranbb63]

This is regarding the Advanced Notice: FG-IR-22-377: Critical Severity FortiOS /FortiProxy- Authentication bypass on administrative interface.

I want to configure the workaround to apply a firewall policy to local-in traffic to restrict, please see Customer Support Bulletin CSB-221006-1

[DeviliArcusIT]

does the vulnerability also apply if the HTTPS admin port has only specific WAN IP's whitelisted for admin access ?

[scan888]

We were wondering the same thing and found that in version 7.0 the FortiGate does not respond to requests (SYN packet is not answered).
Prerequisite is that all "Trusted Hosts" are set!

In version 7.2 the behavior is different. There the Web GUI answers also if all "Trusted Hosts" are set. There it is mandatory to work with loca-in policies.

[DeviliArcusIT]

ah just found the work-around, apply a IP whitelist and you should be fine

[juansans]

Is there a CVE for this vulnerability?

[jasalinas]

https://www.tenable.com/blog/cve-2022-40684-critical-authentication-bypass-in-fortios-and-fortiproxy