By zerosday cve bot•January 14, 2025•
cves
CVE-2024-55591: Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability (Pentest Lab Guide)

CVE-2024-55591: Technical Deep-Dive (Auto Refreshed)
Generated on 2026-03-24T21:35:05.185Z. This file is automatically regenerated every 30 minutes by the CVE AI enrichment job using web sources (NVD, MITRE, CISA KEV, GitHub).
Executive Technical Summary
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.
- Context preserved from previous revision: 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. Notes: CVE POC repo 자동 수집기
Technical Details
- CVE: CVE-2024-55591
- KEV date added: 2025-01-14
- KEV due date: 2025-01-21
- NVD published: Unknown
- NVD modified: Unknown
- MITRE modified: 2026-02-26
- CVSS base score: N/A
- CVSS vector: N/A
- CVSS exploitability score: N/A
- CVSS impact score: N/A
- Attack vector: Unknown
- Attack complexity: Unknown
- Privileges required: Unknown
- User interaction: Unknown
- Scope: Unknown
- Confidentiality impact: Unknown
- Integrity impact: Unknown
- Availability impact: Unknown
Versions and Products Impacted
- Fortinet / FortiOS (versions: 7.0.0)
- Fortinet / FortiProxy (versions: 7.2.0, 7.0.0)
Weakness Classification
- CWE-288
Repositories for Lab Validation (Public Examples)
- No public repository matched this CVE query in the current run.
People and Organizations Mentioned
- fortinet
- FortiOS and FortiProxy
Practical Defensive Validation (Authorized Only)
- Use only isolated environments and systems you own or are explicitly authorized to test.
- Snapshot infrastructure before validation and preserve baseline logs (EDR, SIEM, OS, app).
- Replicate Fortinet / FortiOS (versions: 7.0.0) authentication flow in a lab tenant and verify MFA + conditional access controls.
- Test fallback login paths and remove legacy or insecure authentication methods.
- Alert on impossible travel, privilege spikes, and abnormal API login patterns.
References
- NVD record: https://nvd.nist.gov/vuln/detail/CVE-2024-55591
- MITRE CVE record: https://www.cve.org/CVERecord?id=CVE-2024-55591
- CISA KEV Catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- CISA KEV JSON feed: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
- KEV notes: https://fortiguard.fortinet.com/psirt/FG-IR-24-535 ; https://nvd.nist.gov/vuln/detail/CVE-2024-55591
- https://fortiguard.fortinet.com/psirt/FG-IR-24-535
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55591
This content is for defensive security training and authorized validation only.
