CVE-2024-50566
📋 TL;DR
This CVE describes an OS command injection vulnerability in Fortinet FortiManager and FortiManager Cloud products. Authenticated remote attackers can execute arbitrary commands via crafted FGFM requests, potentially leading to full system compromise. Affected versions include FortiManager/FortiManager Cloud 7.2.x through 7.6.x.
💻 Affected Systems
- Fortinet FortiManager
- Fortinet FortiManager Cloud
📦 What is this software?
Fortimanager by Fortinet
Fortimanager by Fortinet
Fortimanager by Fortinet
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining root/administrator privileges, allowing data theft, lateral movement, and persistent backdoor installation.
Likely Case
Unauthorized command execution within the FortiManager context, potentially leading to configuration manipulation, credential harvesting, and further network compromise.
If Mitigated
Limited impact due to network segmentation, strong authentication controls, and monitoring that detects anomalous FGFM requests.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of FGFM protocol. No public exploit code available at time of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: FortiManager/FortiManager Cloud 7.6.2, 7.4.6, 7.2.9 or later
Vendor Advisory: https://fortiguard.fortinet.com/psirt/FG-IR-24-463
Restart Required: No
Instructions:
1. Backup current configuration. 2. Download appropriate firmware from Fortinet support portal. 3. Upload firmware to FortiManager. 4. Install update via System > Firmware menu. 5. Verify successful upgrade.
🔧 Temporary Workarounds
Restrict FGFM Access
allLimit FGFM protocol access to trusted management networks only using firewall rules.
Enforce Strong Authentication
allImplement multi-factor authentication and strong password policies for all FortiManager administrative accounts.
🧯 If You Can't Patch
- Isolate FortiManager systems from internet and restrict access to management VLAN only
- Implement network segmentation to limit potential lateral movement from compromised FortiManager
🔍 How to Verify
Check if Vulnerable:
Check FortiManager version via GUI (System > Dashboard) or CLI: 'get system status' and compare with affected versions list.Check Version:
get system status | grep VersionVerify Fix Applied:
Verify version is 7.6.2+, 7.4.6+, or 7.2.9+ using same methods. Check for absence of anomalous FGFM requests in logs.📡 Detection & Monitoring
Log Indicators:
- Unusual FGFM protocol requests
- Commands executed via FGFM that don't match normal administrative patterns
- Multiple failed authentication attempts followed by successful login
Network Indicators:
- FGFM traffic from unexpected source IPs
- Unusual command sequences in FGFM protocol captures
SIEM Query:
source="fortimanager" AND (protocol="FGFM" AND command="*" | regex "[;&|`]" OR "exec" OR "system")