CVE-2020-24197
📋 TL;DR
This SQL injection vulnerability in Stock Management System v1.0 allows remote attackers to execute arbitrary SQL commands through the username parameter during login. Attackers can bypass authentication, extract sensitive data, or take control of the database. Organizations using this specific version of the stock management system are affected.
💻 Affected Systems
- Stock Management System
📦 What is this software?
Stock Management System by Stock Management System Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, authentication bypass, privilege escalation, and potential remote code execution on the underlying server.
Likely Case
Authentication bypass allowing unauthorized access to the stock management system, followed by data extraction or manipulation of inventory records.
If Mitigated
Attack blocked at web application firewall level with no successful exploitation.
🎯 Exploit Status
SQL injection via username parameter requires no authentication. Public exploit details exist in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation and Parameterized Queries
allModify the login PHP code to use prepared statements with parameterized queries instead of string concatenation.
Replace vulnerable SQL query with: $stmt = $conn->prepare('SELECT * FROM users WHERE username = ? AND password = ?'); $stmt->bind_param('ss', $username, $password); $stmt->execute();
Web Application Firewall (WAF) Rules
allDeploy WAF rules to block SQL injection patterns in login requests.
Add WAF rule to block requests containing SQL keywords like UNION, SELECT, INSERT, DELETE, DROP, OR 1=1 in username parameter.
🧯 If You Can't Patch
- Isolate the Stock Management System behind a firewall with strict access controls and network segmentation.
- Implement strong authentication mechanisms (multi-factor authentication) and monitor for unusual login attempts.
🔍 How to Verify
Check if Vulnerable:
Test login with SQL injection payload in username field (e.g., admin' OR '1'='1). If login succeeds without valid credentials, system is vulnerable.Check Version:
Check the system's version through its admin panel or by examining source code files for version identifiers.Verify Fix Applied:
After implementing parameterized queries, retest with SQL injection payloads. Login should fail with invalid credentials.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts with SQL-like patterns in username field
- Successful logins from unexpected IP addresses
Network Indicators:
- HTTP POST requests to login endpoint containing SQL keywords in parameters
- Abnormal database query patterns from the application server
SIEM Query:
source="web_logs" AND uri="/login.php" AND (username="*UNION*" OR username="*SELECT*" OR username="*OR 1=1*")