Actively exploited · Published Jan 14, 2025 · Assigned by fortinet
CVE-2024-55591
Critical 9.6 Exploited Ransomware
In plain English
A critical-severity authentication bypass in FortiOS from Fortinet. Attackers are actively exploiting it in the wild (listed by CISA on January 14, 2025). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 94.3% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Jan 21, 2025.
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiOS | 7.0.0 – through 7.0.16 |
| Fortinet | FortiProxy | 7.2.0 – through 7.2.127.0.0 – through 7.0.19 |
Weakness: CWE-288 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C