CVE-2017-17097
📋 TL;DR
CVE-2017-17097 allows unauthenticated attackers to reset admin passwords in gps-server.net GPS Tracking Software 2.x by exploiting a predictable password generation mechanism. The vulnerability immediately resets passwords upon request and sends the new predictable password via email, enabling complete system compromise. All self-hosted installations of version 2.x are affected.
💻 Affected Systems
- gps-server.net GPS Tracking Software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete administrative takeover of GPS tracking system, allowing attackers to modify tracking data, access sensitive location information, disable tracking functionality, or use the system as a foothold for further network attacks.
Likely Case
Unauthorized administrative access leading to data theft, system manipulation, and potential disruption of GPS tracking services for all monitored assets.
If Mitigated
Limited impact with proper network segmentation and monitoring, though authentication bypass remains possible if vulnerable systems are accessible.
🎯 Exploit Status
Exploit code is publicly available and requires minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.0 or later
Vendor Advisory: https://s1.gps-server.net/changelog.txt
Restart Required: Yes
Instructions:
1. Backup current installation and data. 2. Download latest version from vendor. 3. Replace all files with new version. 4. Restart web server and application services. 5. Verify functionality.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict access to the GPS tracking application to trusted IP addresses only
# Example iptables rule: iptables -A INPUT -p tcp --dport 80 -s TRUSTED_IP -j ACCEPT
# Example iptables rule: iptables -A INPUT -p tcp --dport 443 -s TRUSTED_IP -j ACCEPT
Disable Password Reset Function
allTemporarily disable or modify the password reset functionality in fn_connect.php
# Backup original: cp fn_connect.php fn_connect.php.backup
# Comment out or remove password reset logic in fn_connect.php
🧯 If You Can't Patch
- Isolate the GPS tracking server in a separate network segment with strict firewall rules
- Implement multi-factor authentication or additional authentication layers in front of the application
🔍 How to Verify
Check if Vulnerable:
Check if running version 2.x by examining version files or web interface. Test password reset functionality without authentication.Check Version:
grep -r 'version' /path/to/gps-server/installation/ or check web interfaceVerify Fix Applied:
Verify version is 3.0 or later. Test that password reset now requires proper authentication and generates secure passwords.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by successful admin login from new IP
- Password reset requests from unauthenticated sources
- Admin password change events without proper authentication
Network Indicators:
- HTTP POST requests to password reset endpoints from external IPs
- Unusual admin login patterns or times
SIEM Query:
source="web_logs" AND (uri_path="/password_reset" OR uri_path="/admin/reset") AND http_method="POST" AND src_ip NOT IN trusted_ips