Advisory: FortiOS / FortiProxy / FortiSwitchManager Vulnerability Advisory

Description

Fortinet has released a security update to address a vulnerability affecting their appliances (CVE-2022-40684)

Affected systems

CVE 2022-40684 is a critical authentication bypass vulnerability affecting FortiOS / FortiProxy / FortiSwitchManager.

Security Risks

This attack may allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests. For full advisories addressing these vulnerabilities, refer to Fortinet’s Security advisories.

https://www.fortinet.com/blog/psirt-blogs/update-regarding-cve-2022-40684

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

Recommended Actions

The National Cyber Security Authority (NCSA) strongly recommends that system administrators should:

1. Follow the advisory shared by Fortinet and apply suggested mitigations to lower the risk of vulnerability exploitation.
2. Apply the required and latest security updates as soon as possible.
3. Before any updating task, please ensure you have a recent backup that can easily be restored.

For further information and support, please contact NCSA by email at rwcsirt@ncsa.gov.rw or call us on 9009.

References

Fortinet’s Public Advisory

Fortinet’s Update regarding CVE-2022-40684