CVE-2024-55591

CriticalActively exploited (CISA KEV)Known to be used in ransomware campaigns

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductFortinet FortiOS and FortiProxy
PublishedJan 14, 2025
First seenJan 14, 2025
Added to KEVJan 14, 2025
Weakness typeCWE-288CWE-288

How to fix

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA due date: Jan 21, 2025
Update
  • fortinet fortiproxy7.0.20, 7.2.13 or later
  • fortinet fortios7.0.17 or later

Affected products

ProductAffected versionsFixed in
fortinet fortiproxy7.0.0 ≤ v < 7.0.20, 7.2.0 ≤ v < 7.2.137.0.20, 7.2.13
fortinet fortios7.0.0 ≤ v < 7.0.177.0.17

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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