Exploited
critical
9.8
CWE
288
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2024-55591: Authentication bypass in Node.js websocket module and CSF requests

First published: Tue Jan 14 2025(Updated: )

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS and FortiProxy may allow a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module or via crafted CSF proxy requests. Please note that reports show this is being exploited in the wild.

Credit: psirt@fortinet.com psirt@fortinet.com

Affected SoftwareAffected VersionHow to fix
Fortinet FortiOS and FortiProxy SSL-VPN
Fortinet FortiProxy>=7.0.0<7.0.20
Fortinet FortiProxy>=7.2.0<7.2.13
Fortinet FortiOS IPS Engine>=7.0.0<7.0.17
Fortinet FortiOS IPS Engine>=7.0.0<=7.0.16
Fortinet FortiProxy>=7.2.0<=7.2.12
Fortinet FortiProxy>=7.0.0<=7.0.19

Remedy

Please upgrade to FortiOS version 7.0.17 or above Please upgrade to FortiProxy version 7.2.13 or above Please upgrade to FortiProxy version 7.0.20 or above

Remedy

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

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Reference Links

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2024-55591?

    CVE-2024-55591 is considered critical due to its potential to allow remote attackers to gain super-admin privileges.

  • How do I fix CVE-2024-55591?

    To fix CVE-2024-55591, update FortiOS to version 7.0.17 or higher, or FortiProxy to version 7.0.20 or higher.

  • Which versions of FortiOS are affected by CVE-2024-55591?

    CVE-2024-55591 affects FortiOS versions from 7.0.0 to 7.0.16.

  • Which versions of FortiProxy are affected by CVE-2024-55591?

    CVE-2024-55591 impacts FortiProxy versions from 7.2.0 to 7.2.12 and from 7.0.0 to 7.0.19.

  • Is there a known exploit for CVE-2024-55591?

    Yes, CVE-2024-55591 is reported to be actively exploited against vulnerable systems.

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