---
cve: "CVE-2024-55591"
severity: "CRITICAL"
cvss: 9.6
epss: "98.3%"
vendor: "Fortinet"
kev: true
exploited: true
published: "2025-01-14 14:15:34"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T18:51:25+02:00"
---

# CVE-2024-55591

> 9.6 CRITICAL · ⚠️ CISA KEV (599 Tage) · 🔓 Exploited

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-288** — Authentication Bypass Using an Alternate Path or Channel
  The product requires authentication, but the product has an alternate path or channel that does not require authentication.

## Angriffsmuster (CAPEC)

- [CAPEC-127 — Directory Indexing](https://capec.mitre.org/data/definitions/127.html) _(Severity: Medium)_
- [CAPEC-665 — Exploitation of Thunderbolt Protection Flaws](https://capec.mitre.org/data/definitions/665.html) _(Severity: Very High)_

## ATT&CK-Techniken

- [T1083 — File and Directory Discovery](https://attack.mitre.org/techniques/T1083/)
- [T1211 — Exploitation for Defensive Evasion](https://attack.mitre.org/techniques/T1211/)
- [T1542.002 — Pre-OS Boot: Component Firmware](https://attack.mitre.org/techniques/T1542/002/)
- [T1556 — Modify Authentication Process](https://attack.mitre.org/techniques/T1556/)

## Referenzen

- <https://fortiguard.fortinet.com/psirt/FG-IR-24-535>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55591>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-55591) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_