Known Exploited Vulnerability
9.8
CRITICAL
CVE-2024-55591
Fortinet FortiOS Authorization Bypass Vulnerabilit - [Actively Exploited]
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.

INFO

Published Date :

Jan. 14, 2025, 2:15 p.m.

Last Modified :

Jan. 23, 2025, 2 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Fortinet FortiOS contains an authorization bypass vulnerability that may allow an unauthenticated remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.

Required Action :

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

Notes :

https://fortiguard.fortinet.com/psirt/FG-IR-24-535 ; https://nvd.nist.gov/vuln/detail/CVE-2024-55591

Public PoC/Exploit Available at Github

CVE-2024-55591 has a 15 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-55591 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fortinet fortios
2 Fortinet fortiproxy
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-55591.

URL Resource
https://fortiguard.fortinet.com/psirt/FG-IR-24-535 Mitigation Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 1 week, 5 days ago
0 stars 0 fork 0 watcher
Born at : Feb. 9, 2025, 2 p.m. This repo has been linked 1 different CVEs too.

#PoC for CVE-2024-55591 Authentication bypass Affects: FortiOS 7.0.0 to 7.0.16 , FortiProxy 7.0.0 to 7.0.19 ,FortiProxy 7.2.0 to 7.2.12

Python

Updated: 3 weeks, 1 day ago
1 stars 0 fork 0 watcher
Born at : Jan. 29, 2025, 7:39 p.m. This repo has been linked 1 different CVEs too.

A comprehensive all-in-one Python-based Proof of Concept script to discover and exploit a critical authentication bypass vulnerability (CVE-2024-55591) in certain Fortinet devices.

attack-surface automated firewall fortinet poc wizard cve-2024-55591

Python

Updated: 3 weeks ago
4 stars 1 fork 1 watcher
Born at : Jan. 29, 2025, 2:54 p.m. This repo has been linked 1 different CVEs too.

FortiGate Config Leak Checker

cybersecurity fortigate leak

CSS JavaScript HTML

Updated: 3 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : Jan. 27, 2025, 12:55 p.m. This repo has been linked 2 different CVEs too.

None

Python

Updated: 2 weeks, 2 days ago
38 stars 9 fork 9 watcher
Born at : Jan. 27, 2025, 6:25 a.m. This repo has been linked 1 different CVEs too.

CVE-2024-55591 Opening CMD (Command Line Interface), Creating a Superuser, and Managing VPN Groups

Python

Updated: 3 weeks, 1 day ago
5 stars 1 fork 1 watcher
Born at : Jan. 25, 2025, 2:35 p.m. This repo has been linked 1 different CVEs too.

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.

Python

Updated: 2 weeks, 2 days ago
4 stars 0 fork 0 watcher
Born at : Jan. 24, 2025, 8:29 p.m. This repo has been linked 1 different CVEs too.

Private CVE-2024-55591

Updated: 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Jan. 24, 2025, 12:59 p.m. This repo has been linked 1 different CVEs too.

None

Updated: 4 weeks ago
1 stars 0 fork 0 watcher
Born at : Jan. 22, 2025, 2:16 p.m. This repo has been linked 1 different CVEs too.

None

Python

Updated: 3 weeks, 6 days ago
17 stars 6 fork 6 watcher
Born at : Jan. 21, 2025, 12:30 p.m. This repo has been linked 1 different CVEs too.

Checks for authentication bypass vulnerability inFortinet's FortiOS, potentially exploited by remote attackers.

Updated: 4 weeks, 1 day ago
1 stars 0 fork 0 watcher
Born at : Jan. 18, 2025, 3:17 p.m. This repo has been linked 1 different CVEs too.

None

Python

Updated: 2 weeks, 2 days ago
62 stars 13 fork 13 watcher
Born at : Jan. 16, 2025, 7:26 a.m. This repo has been linked 1 different CVEs too.

自动搜集每天的漏洞poc和exp信息。

Updated: 1 week, 2 days ago
8 stars 2 fork 2 watcher
Born at : Dec. 11, 2024, 12:32 a.m. This repo has been linked 91 different CVEs too.

Fortigate Log Digger

Python

Updated: 2 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : Feb. 17, 2024, 1:24 p.m. This repo has been linked 4 different CVEs too.

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 3 weeks, 6 days ago
556 stars 36 fork 36 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1248 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-55591 vulnerability anywhere in the article.

  • security.nl
Fortinet maakt kritiek firewall-lek maand na uitkomen update bekend

Fortinet heeft een kritieke kwetsbaarheid in de firewalls en vpn-oplossingen die het biedt een maand na het uitkomen van de beveiligingsupdate bekendgemaakt. Via het beveiligingslek (CVE-2025-24472) i ... Read more

Published Date: Feb 12, 2025 (1 week, 2 days ago)
  • BleepingComputer
Fortinet discloses second firewall auth bypass patched in January

Update 2/11/25 07:32 PM ET: After publishing our story, Fortinet has informed us that the new CVE-2025-24472 flaw added to FG-IR-24-535 today is not a zero-day and was already fixed in January. Furthe ... Read more

Published Date: Feb 11, 2025 (1 week, 2 days ago)
  • BleepingComputer
Fortinet warns of new zero-day exploited to hijack firewalls

Fortinet warned today that attackers are exploiting another now-patched zero-day bug in FortiOS and FortiProxy to hijack Fortinet firewalls and breach enterprise networks. Successful exploitation of t ... Read more

Published Date: Feb 11, 2025 (1 week, 2 days ago)
  • TheCyberThrone
TheCyberThrone Security Weekly Review – February 01, 2025

Welcome to TheCyberThrone  cybersecurity week in review will be posted covering the important security happenings. This review is for the week ending Saturday, February 01, 2025.Cyber Incidents at Tat ... Read more

Published Date: Feb 03, 2025 (2 weeks, 4 days ago)
  • TheCyberThrone
TheCyberThrone CyberSecurity Newsletter Top 5 Articles – January 2025

Welcome to TheCyberThrone cybersecurity month in review will be posted covering the important security happenings . This review is for the month ending January 2025Subscribers favorite #1Exploit Code ... Read more

Published Date: Feb 01, 2025 (2 weeks, 6 days ago)
  • TheCyberThrone
VMware Aria Vulnerabilities Addressed

VMware Security Advisory VMSA-2025-0003 addresses multiple vulnerabilities identified in VMware Aria Operations for Logs and VMware Aria Operations. These vulnerabilities, if exploited, could allow at ... Read more

Published Date: Jan 31, 2025 (3 weeks ago)
  • TheCyberThrone
PHP Voyager flaws lead to RCE

Three critical vulnerabilities have been disclosed in the open-source PHP package Voyager, a widely used tool for managing Laravel applications. These vulnerabilities, identified as CVE-2024-55417, CV ... Read more

Published Date: Jan 31, 2025 (3 weeks ago)
  • TheCyberThrone
CVE-2024-55591 Exploit Code Released for FortiOS Flaw

Cybersecurity company watchTowr Labs has released the proof-of-concept (PoC) exploit code for a severe zero-day vulnerability, CVE-2024-55591, affecting Fortinet’s FortiOS and FortiProxy products. Thi ... Read more

Published Date: Jan 30, 2025 (3 weeks, 1 day ago)
  • Dark Reading
Actively Exploited Fortinet Zero-Day Gives Attackers Super-Admin Privileges

Source: Lutsenko via Oleksandr via ShutterstockFortinet has patched an actively exploited zero-day authentication bypass flaw affecting its FortiOS and FortiProxy products, which attackers have been e ... Read more

Published Date: Jan 28, 2025 (3 weeks, 3 days ago)
  • Help Net Security
Week in review: 48k Fortinet firewalls open to attack, attackers “vishing” orgs via Microsoft Teams

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: 48,000+ internet-facing Fortinet firewalls still open to attack Despite last week’s confirmation of an ... Read more

Published Date: Jan 26, 2025 (3 weeks, 5 days ago)
  • Help Net Security
48,000+ internet-facing Fortinet firewalls still open to attack

Despite last week’s confirmation of and warnings about long-standing exploitation of CVE-2024-55591, a critical vulnerability affecting Fortinet Fortigate firewalls, too many vulnerable devices are st ... Read more

Published Date: Jan 22, 2025 (4 weeks, 2 days ago)
  • The Register
Patch procrastination leaves 50,000 Fortinet firewalls vulnerable to zero-day

Fortinet customers need to get with the program and apply the latest updates as nearly 50,000 management interfaces are still vulnerable to the latest zero-day exploit. Data from the Shadowserver Foun ... Read more

Published Date: Jan 21, 2025 (4 weeks, 2 days ago)
  • security.nl
'Nederland telt honderden Fortinet-apparaten met actief aangevallen lek'

Nederland telt honderden Fortinet-apparaten die een actief aangevallen kwetsbaarheid bevatten. Wereldwijd gaat het om zo'n vijftigduizend systemen. Dat meldt The Shadowserver Foundation op basis van e ... Read more

Published Date: Jan 21, 2025 (1 month ago)
  • Help Net Security
Week in review: AWS S3 data encrypted without ransomware, data of 15k Fortinet firewalls leaked

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Attackers are encrypting AWS S3 data without using ransomware A ransomware gang dubbed Codefinger is e ... Read more

Published Date: Jan 19, 2025 (1 month ago)
  • Dark Reading
15K Fortinet Device Configs Leaked to the Dark Web

Source: JHVEPhoto via Alamy Stock PhotoDated configuration data and virtual private network (VPN) credentials for 15,474 Fortinet devices have been posted for free to the Dark Web.On Jan. 14, Fortinet ... Read more

Published Date: Jan 17, 2025 (1 month ago)
  • TheCyberThrone
CVE-2023-37936 impacts Fortinet FortiSwitch

CVE-2023-37936 is a critical security vulnerability identified in Fortinet FortiSwitch devices. This vulnerability is particularly severe due to its potential to allow unauthorized code execution, lea ... Read more

Published Date: Jan 16, 2025 (1 month ago)
  • TheCyberThrone
Ivanti fixes Critical Security Vulnerabilities in EPM

OverviewIvanti has recently addressed multiple critical and high-severity vulnerabilities in its Endpoint Manager (EPM) software. These vulnerabilities could allow unauthorized access, remote code exe ... Read more

Published Date: Jan 16, 2025 (1 month ago)
  • TheCyberThrone
CVE-2024-50603 impacts Aviatrix with Cryptomining

CVE-2024-50603 is a critical security vulnerability identified in the Aviatrix Controller, a cloud networking platform used to manage and secure cloud infrastructure across multiple providers. This vu ... Read more

Published Date: Jan 16, 2025 (1 month ago)
  • TheCyberThrone
CVE-2024-44243: macOS SIP Bypass Flaw

CVE-2024-44243 is a critical vulnerability discovered in macOS that allows attackers to bypass Apple’s System Integrity Protection (SIP) by exploiting third-party kernel extensions. This vulnerability ... Read more

Published Date: Jan 15, 2025 (1 month ago)
  • Help Net Security
Rsync vulnerabilities allow remote code execution on servers, patch quickly!

Six vulnerabilities have been fixed in the newest versions of Rsync (v3.4.0), two of which could be exploited by a malicious client to achieve arbitrary code execution on a machine with a running Rsyn ... Read more

Published Date: Jan 15, 2025 (1 month ago)
  • TheCyberThrone
Google Chrome fixes 16 flaws with the latest version

Google has released version 132.0.6834.83/84 of its Chrome browser on January 14, 2025. This update addresses several critical security vulnerabilities to enhance the browser’s security and stability. ... Read more

Published Date: Jan 15, 2025 (1 month ago)
  • TheCyberThrone
CISA adds Fortinet flaw CVE-2024-55591 to KEV Catalog

CVE-2024-55591 is a critical vulnerability affecting Fortinet’s FortiOS and FortiProxy devices. This vulnerability allows a remote attacker to bypass authentication mechanisms and gain super-admin pri ... Read more

Published Date: Jan 15, 2025 (1 month ago)
  • Cybersecurity News
SimpleHelp Urgents to Patch Critical Security Vulnerabilities

Security researcher Naveen Sunkavally of Horizon3.ai has identified critical vulnerabilities in SimpleHelp, a popular remote support software tool. These flaws, if exploited, could allow attackers to ... Read more

Published Date: Jan 15, 2025 (1 month ago)
  • The Cyber Express
Microsoft January 2025 Patch Tuesday: 8 Zero-Days, 3 Actively Exploited

Microsoft’s Patch Tuesday update for January 2025 patches 159 vulnerabilities, including eight zero-days, three of which are being actively exploited. The Microsoft January 2025 Patch Tuesday release ... Read more

Published Date: Jan 14, 2025 (1 month ago)
  • Help Net Security
Fortinet fixes FortiOS zero-day exploited by attackers for months (CVE-2024-55591)

Fortinet has patched an authentication bypass vulnerability (CVE-2024-55591) affecting its FortiOS firewalls and FortiProxy web gateways that has been exploited as a zero-day by attackers to compromis ... Read more

Published Date: Jan 14, 2025 (1 month, 1 week ago)
  • security.nl
Fortinet waarschuwt voor actief misbruikt lek in FortiOS en FortiProxy

Fortinet waarschuwt organisaties voor een actief misbruikte kwetsbaarheid in FortiOS en FortiProxy waardoor aanvallers kwetsbare apparaten op afstand kunnen overnemen. Fortinet heeft updates uitgebrac ... Read more

Published Date: Jan 14, 2025 (1 month, 1 week ago)
  • BleepingComputer
Fortinet warns of auth bypass zero-day exploited to hijack firewalls

Attackers are exploiting a new authentication bypass zero-day vulnerability in FortiOS and FortiProxy to hijack Fortinet firewalls and breach enterprise networks. This security flaw (tracked as CVE-20 ... Read more

Published Date: Jan 14, 2025 (1 month, 1 week ago)

The following table lists the changes that have been made to the CVE-2024-55591 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Jan. 23, 2025

    Action Type Old Value New Value
    Changed Vulnerability Name Fortinet FortiOS Authorization Bypass Vulnerability Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
  • Initial Analysis by [email protected]

    Jan. 15, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE NIST NVD-CWE-Other
    Added CPE Configuration OR *cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.20 *cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* versions from (including) 7.2.0 up to (excluding) 7.2.13 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.17
    Changed Reference Type https://fortiguard.fortinet.com/psirt/FG-IR-24-535 No Types Assigned https://fortiguard.fortinet.com/psirt/FG-IR-24-535 Mitigation, Vendor Advisory
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Jan. 15, 2025

    Action Type Old Value New Value
    Added Date Added 2025-01-14
    Added Due Date 2025-01-21
    Added Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
    Added Vulnerability Name Fortinet FortiOS Authorization Bypass Vulnerability
  • New CVE Received by [email protected]

    Jan. 14, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-288
    Added Reference https://fortiguard.fortinet.com/psirt/FG-IR-24-535
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-55591 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-55591 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability