CVE-2024-44599
📋 TL;DR
FNT Command 13.4.0 contains a directory traversal vulnerability (CWE-434) that allows attackers to access files outside the intended directory. This affects systems running FNT Command 13.4.0 without proper input validation. Attackers could potentially read sensitive files on the server.
💻 Affected Systems
- FNT Command
📦 What is this software?
Fnt Command by Fntsoftware
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through reading sensitive configuration files, credentials, or deploying malicious payloads to execute arbitrary code.
Likely Case
Unauthorized access to sensitive files containing configuration data, credentials, or proprietary information.
If Mitigated
Limited impact with proper network segmentation, file system permissions, and input validation controls in place.
🎯 Exploit Status
The GitHub gist provides technical details that could be used to create exploits. Directory traversal vulnerabilities are typically easy to exploit with basic HTTP requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://fnt.com
Restart Required: No
Instructions:
1. Contact FNT Software for patch availability. 2. Check vendor website for security updates. 3. Apply any available patches following vendor instructions.
🔧 Temporary Workarounds
Input Validation Filter
allImplement web application firewall or input validation to block directory traversal sequences
Configure WAF rules to block requests containing '../', '..\', or similar traversal patterns
File System Permissions
linuxRestrict file system permissions for the web application user
chmod 750 /path/to/webroot
chown www-data:www-data /path/to/webroot
🧯 If You Can't Patch
- Implement strict network segmentation to isolate FNT Command from sensitive systems
- Deploy web application firewall with directory traversal protection rules
🔍 How to Verify
Check if Vulnerable:
Test by attempting to access files outside webroot using traversal sequences like '../../etc/passwd' in URL parametersCheck Version:
Check FNT Command version in application interface or configuration filesVerify Fix Applied:
Retest traversal attempts after applying controls; successful attempts should return access denied errors📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '../', '..\', or similar patterns
- Access to files outside expected web directories
- Failed file access attempts with traversal sequences
Network Indicators:
- Unusual file paths in HTTP requests
- Requests for system files from web application
SIEM Query:
source="web_logs" AND (uri="*../*" OR uri="*..\\*" OR uri="*%2e%2e%2f*")