CVE-2023-38890
📋 TL;DR
CVE-2023-38890 is an unauthenticated SQL injection vulnerability in Online Shopping Portal Project 3.1 that allows attackers to execute arbitrary SQL commands via the login form. This enables unauthorized access, data theft, and potentially remote code execution. Organizations using this specific e-commerce software are affected.
💻 Affected Systems
- Online Shopping Portal Project
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including remote code execution, database exfiltration, and persistent backdoor installation leading to full business disruption.
Likely Case
Unauthorized administrative access, customer data theft (PII, payment info), and manipulation of product/customer databases.
If Mitigated
Limited impact with proper input validation and WAF protection, potentially only error messages or failed login attempts visible.
🎯 Exploit Status
Multiple public exploits available including SQL injection payloads and RCE chains. Attack requires no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Review the source code at the login handler
2. Implement parameterized queries or prepared statements
3. Add input validation for username field
4. Escape all user inputs before SQL processing
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allDeploy WAF rules to block SQL injection patterns in login requests
# Example ModSecurity rule:
SecRule ARGS:username "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQLi attempt detected'"
Input Validation Filter
allAdd server-side validation to reject suspicious characters in username field
# PHP example:
if (preg_match('/[\'\"\;\-\-\/\*\|\&]/', $_POST['username'])) {
die('Invalid input');
}
🧯 If You Can't Patch
- Isolate the application behind a reverse proxy with strict input filtering
- Implement network segmentation to limit database access from the application server
🔍 How to Verify
Check if Vulnerable:
Test login form with SQL injection payload: username: admin' OR '1'='1Check Version:
Check application version in admin panel or source code commentsVerify Fix Applied:
Attempt SQL injection payloads and verify they are rejected or properly escaped📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts with SQL keywords
- Unusual database error messages in logs
- Login attempts containing special characters like quotes, semicolons
Network Indicators:
- HTTP POST requests to login endpoint with SQL payloads
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND (uri="/login" OR uri="/admin") AND (message="' OR" OR message="--" OR message=";")