CVE-2024-55591
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run FortiOS and FortiProxy, fix it now.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
US federal civilian agencies must remediate by Jan 21, 2025.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
Description
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| FortiGate / FortiOS | Fortinet | >= 7.0.0, < 7.0.20; >= 7.2.0, < 7.2.13; >= 7.0.0, < 7.0.17 | 7.0.20; 7.2.13; 7.0.17 | NVD |
| FortiOS and FortiProxy | Fortinet | — | — | KEV |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2024-55591 scored CVSS 9.8: Fortinet FortiOS and FortiProxy, Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
CISA lists this as exploited in the wild and known to be used in ransomware campaigns. Unpatched FortiOS and FortiProxy systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
1 earlier event is available with a subscription. See plans.
Coverage
We have not published a story about this vulnerability yet.