Auth bypass in Fortinet Fortios, Fortiproxy, Fortiswitchmanager
CVE-2022-40684
An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6 and FortiSwitchManager version 7.2.0 and 7.0.0 allows an unauthenticated atttacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests.
Vulnerability class: Broken Authentication
EPSS: 1.000 (100.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Fortinet Fortios, Fortiproxy, Fortiswitchmanager — versions FortiOS 7.2.1, 7.2.0, 7.0.6, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0; FortiProxy 7.2.0, 7.0.6, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0; FortiSwitchManager 7.2.0, 7.0.0
- Fortinet Fortios
- Fortinet Fortiproxy — versions 7.2.0
- Fortinet Fortiswitchmanager — versions 7.0.0, 7.2.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- psirt@fortinet.com (Mitigation, Vendor Advisory)
- psirt@fortinet.com (Exploit, VDB Entry, Third Party Advisory)
- psirt@fortinet.com (Exploit, VDB Entry, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2022-40684?
- CVE-2022-40684 is a critical-severity vulnerability in Fortinet Fortios, Fortiproxy, Fortiswitchmanager, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-10-18.
- How severe is CVE-2022-40684?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-40684 known to be exploited?
- Yes. CVE-2022-40684 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-10-11), indicating it is being actively exploited. 102 public proof-of-concept repositories are indexed.