CVE-2025-63529
📋 TL;DR
A session fixation vulnerability in Blood Bank Management System 1.0 allows attackers to hijack user sessions by setting session IDs before authentication. When victims log in, the system continues using the attacker's session ID instead of generating a new one, granting unauthorized access to victim accounts. This affects all users of the vulnerable system.
💻 Affected Systems
- Blood Bank Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover leading to unauthorized access to sensitive blood bank data, potential data manipulation, and privilege escalation to administrative functions.
Likely Case
Attacker gains access to user accounts, views sensitive personal and medical information, and potentially modifies blood bank records.
If Mitigated
Limited impact with proper session management controls, but still presents authentication bypass risk.
🎯 Exploit Status
Exploitation requires no authentication and can be performed with basic web testing tools. The vulnerability is well-documented in public repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider implementing custom fixes or migrating to a secure alternative system.
🔧 Temporary Workarounds
Session Regeneration on Login
allModify login.php to regenerate session ID after successful authentication
Edit login.php and add session_regenerate_id(true); after successful authentication check
Secure Session Configuration
allImplement secure session handling with proper cookie attributes
session_set_cookie_params(['secure' => true, 'httponly' => true, 'samesite' => 'Strict']); session_start();
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block session fixation attempts
- Isolate the system behind VPN or internal network only, removing internet exposure
🔍 How to Verify
Check if Vulnerable:
Test by setting a session cookie before login, then logging in and checking if the same session ID persists. Use browser developer tools or curl to manipulate cookies.Check Version:
Check the system version in the web interface or review source code files for version indicators.Verify Fix Applied:
After applying fixes, verify that session IDs change after successful login and that session cookies have secure attributes set.📡 Detection & Monitoring
Log Indicators:
- Multiple login attempts with same session ID
- Session IDs that don't change after authentication
- Unusual session creation patterns
Network Indicators:
- HTTP requests with manipulated session cookies
- Repeated authentication attempts with fixed session parameters
SIEM Query:
web_requests session_id=* AND auth_success=true | stats count by session_id | where count > 1