CVE-2024-40584
📋 TL;DR
This OS command injection vulnerability in Fortinet FortiAnalyzer and FortiManager products allows authenticated privileged attackers to execute arbitrary commands via crafted HTTP/HTTPS requests. Attackers with administrative access can achieve remote code execution on affected systems. All versions within specified ranges of FortiAnalyzer, FortiManager, and their cloud/big data variants are vulnerable.
💻 Affected Systems
- FortiAnalyzer
- FortiManager
- FortiAnalyzer BigData
- FortiAnalyzer Cloud
- FortiManager Cloud
📦 What is this software?
Fortianalyzer by Fortinet
Fortianalyzer by Fortinet
Fortimanager by Fortinet
Fortimanager by Fortinet
Fortimanager by Fortinet
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands with system privileges, potentially leading to data theft, lateral movement, or deployment of ransomware.
Likely Case
Privileged authenticated attackers gaining remote code execution to install backdoors, exfiltrate sensitive data, or pivot to other network resources.
If Mitigated
Limited impact if proper network segmentation, least privilege access, and monitoring are in place, though command execution would still be possible.
🎯 Exploit Status
Exploitation requires authenticated privileged access; no public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: FortiAnalyzer/FortiManager: 7.4.4, 7.2.6, 7.0.14, 6.4.16, 6.2.14; FortiAnalyzer BigData: 7.4.1, 7.2.8, 7.0.7, 6.4.8, 6.2.6; FortiAnalyzer/FortiManager Cloud: 7.4.4, 7.2.6, 7.0.14, 6.4.8
Vendor Advisory: https://fortiguard.fortinet.com/psirt/FG-IR-24-220
Restart Required: No
Instructions:
1. Log into the Fortinet support portal. 2. Download the appropriate firmware update for your product and version. 3. Follow Fortinet's firmware upgrade guide for your specific product. 4. Apply the update through the GUI or CLI. 5. Verify the update completed successfully.
🔧 Temporary Workarounds
Restrict GUI Access
allLimit access to the FortiAnalyzer/FortiManager GUI to trusted IP addresses only using firewall rules or access control lists.
Enforce Least Privilege
allReview and minimize administrative accounts with GUI access; implement role-based access control to limit who can access vulnerable interfaces.
🧯 If You Can't Patch
- Isolate affected systems in a segmented network zone with strict egress filtering.
- Implement network monitoring and intrusion detection for unusual command execution patterns.
🔍 How to Verify
Check if Vulnerable:
Check the system version via GUI (System > Dashboard) or CLI (get system status) and compare against affected version ranges.Check Version:
get system status | grep VersionVerify Fix Applied:
After patching, verify the version is updated to a fixed version (e.g., 7.4.4 or higher for 7.4.x) and test GUI functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by successful privileged login
- HTTP requests with suspicious parameters to GUI endpoints
Network Indicators:
- Unusual outbound connections from FortiAnalyzer/FortiManager systems
- HTTP/HTTPS traffic to GUI with command-like strings in parameters
SIEM Query:
source="fortianalyzer" OR source="fortimanager" AND (event_type="command_execution" OR http_uri=*"/api/*" AND http_query CONTAINS "cmd" OR "exec")