CVE-2025-60306
📋 TL;DR
Simple Car Rental System 1.0 has a session permission bypass vulnerability that allows low-privilege users to forge high-privilege sessions and perform sensitive administrative operations. This affects all installations of the software version 1.0 that use the default authentication mechanism.
💻 Affected Systems
- code-projects Simple Car Rental System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full administrative control, allowing them to modify system configurations, access sensitive customer data, manipulate rental records, and potentially execute arbitrary code on the server.
Likely Case
Unauthorized users escalate privileges to perform administrative functions such as modifying rental rates, accessing customer personal information, and manipulating booking data.
If Mitigated
With proper session validation and privilege separation, impact is limited to attempted unauthorized access that is logged and blocked.
🎯 Exploit Status
Exploitation requires a low-privilege account but is straightforward once obtained. Public proof-of-concept demonstrates session manipulation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: http://code-projects.com
Restart Required: No
Instructions:
1. Check vendor website for security updates
2. If patch is released, download and apply according to vendor instructions
3. Currently no official patch available - implement workarounds
🔧 Temporary Workarounds
Implement Session Validation Middleware
allAdd server-side validation that checks user privileges on every request rather than relying on session data alone
Modify authentication middleware to verify user permissions against database on each request
Restrict Administrative Endpoints
linuxUse web server configuration to restrict access to administrative endpoints
# Apache: <Location /admin> Require valid-user Require group admin </Location>
# Nginx: location /admin { auth_basic "Admin Area"; auth_basic_user_file /etc/nginx/.htpasswd; }
🧯 If You Can't Patch
- Implement network segmentation to isolate the application from sensitive systems
- Enable detailed logging and monitoring for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Test if low-privilege user can modify session parameters to access administrative endpoints or functionsCheck Version:
Check application version in admin panel or configuration filesVerify Fix Applied:
Verify that session manipulation no longer allows privilege escalation and all administrative functions require proper authorization checks📡 Detection & Monitoring
Log Indicators:
- Multiple failed privilege checks
- User accessing endpoints beyond their role
- Session ID manipulation attempts
Network Indicators:
- Unusual access patterns from low-privilege accounts to admin endpoints
- Session parameter tampering in HTTP requests
SIEM Query:
source="web_logs" AND (url_path="/admin/*" AND user_role!="admin") OR (event_type="authentication_failure" AND reason="privilege_violation")