CVE-2024-46662

8.8 HIGH

📋 TL;DR

This command injection vulnerability in Fortinet FortiManager allows attackers to execute arbitrary commands with elevated privileges by sending specially crafted packets. Affected systems include FortiManager versions 7.4.1 through 7.4.3 and FortiManager Cloud versions 7.4.1 through 7.4.3, potentially enabling complete system compromise.

💻 Affected Systems

Products:
  • Fortinet FortiManager
  • Fortinet FortiManager Cloud
Versions: 7.4.1 through 7.4.3
Operating Systems: FortiOS-based appliances
Default Config Vulnerable: ⚠️ Yes
Notes: All configurations within affected versions are vulnerable; requires network access to management interface.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with administrative privileges, allowing data theft, lateral movement, and persistent backdoor installation.

🟠

Likely Case

Privilege escalation leading to unauthorized administrative access, configuration changes, and potential data exfiltration.

🟢

If Mitigated

Limited impact with proper network segmentation and access controls, potentially only affecting isolated management components.

🌐 Internet-Facing: HIGH - FortiManager Cloud instances exposed to internet are directly vulnerable to remote exploitation.
🏢 Internal Only: HIGH - Internal FortiManager instances remain vulnerable to authenticated attackers or those with network access.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires network access to management interface and knowledge of packet crafting; no public exploit code available as of advisory date.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: FortiManager 7.4.4 or later

Vendor Advisory: https://fortiguard.fortinet.com/psirt/FG-IR-24-222

Restart Required: No

Instructions:

1. Backup current configuration. 2. Download FortiManager 7.4.4+ from Fortinet support portal. 3. Apply firmware upgrade via GUI or CLI. 4. Verify successful upgrade and configuration integrity.

🔧 Temporary Workarounds

Network Segmentation

all

Restrict access to FortiManager management interfaces to trusted administrative networks only.

configure firewall policy to restrict source IPs to management networks

Access Control Lists

all

Implement strict ACLs on network devices to limit traffic to FortiManager management ports.

configure access-lists on upstream routers/firewalls

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate FortiManager from untrusted networks
  • Enable detailed logging and monitoring for suspicious management interface activity

🔍 How to Verify

Check if Vulnerable:

Check FortiManager version via GUI (System > Dashboard) or CLI (get system status). If version is 7.4.1, 7.4.2, or 7.4.3, system is vulnerable.

Check Version:

execute get system status | grep Version

Verify Fix Applied:

Verify version is 7.4.4 or later via GUI or CLI command 'get system status'.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution in system logs
  • Multiple failed authentication attempts followed by successful privileged access
  • Unexpected configuration changes

Network Indicators:

  • Unusual traffic patterns to FortiManager management ports (TCP 541, 22, 443)
  • Suspicious packet patterns matching known exploit signatures

SIEM Query:

source="fortimanager" AND (event_type="command_execution" OR event_type="privilege_escalation")

🔗 References

📤 Share & Export