CVE-2024-4972
📋 TL;DR
This critical SQL injection vulnerability in Simple Chat System 1.0 allows attackers to manipulate database queries through the login.php endpoint. Attackers can potentially access, modify, or delete sensitive data in the database. All deployments of Simple Chat System 1.0 with the vulnerable login.php file are affected.
💻 Affected Systems
- code-projects Simple Chat System
📦 What is this software?
Simple Chat System by Code Projects
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution if database permissions allow.
Likely Case
Unauthorized access to user credentials, chat messages, and personal information stored in the database.
If Mitigated
Limited to unsuccessful login attempts with proper input validation and query parameterization in place.
🎯 Exploit Status
Public exploit code is available on GitHub. SQL injection in login endpoints is commonly weaponized due to high value and ease of exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch exists. Replace vulnerable login.php with secure version using parameterized queries or prepared statements. Consider migrating to maintained software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and sanitization for email and password parameters in login.php
# Modify login.php to validate email format and sanitize inputs
# Example PHP: filter_var($email, FILTER_VALIDATE_EMAIL) && mysqli_real_escape_string($connection, $input)
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns in login requests
# Example ModSecurity rule: SecRule ARGS "(?i:(union.*select|select.*from|insert.*into|update.*set|delete.*from))" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
# Add to .htaccess or WAF configuration
🧯 If You Can't Patch
- Isolate the Simple Chat System behind a reverse proxy with strict input validation and rate limiting
- Implement network segmentation to restrict database access from the application server only
🔍 How to Verify
Check if Vulnerable:
Test login.php endpoint with SQL injection payloads like: email=admin' OR '1'='1&password=testCheck Version:
# Check Simple Chat System version in source files or configuration: grep -r "version\|Version" /path/to/chat/system/Verify Fix Applied:
Attempt SQL injection tests and verify they fail with proper error messages or are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts with SQL syntax in parameters
- Successful logins from unexpected IP addresses
Network Indicators:
- HTTP POST requests to /login.php containing SQL keywords (UNION, SELECT, etc.)
- Abnormal database query patterns from application server
SIEM Query:
source="web_logs" AND uri_path="/login.php" AND (http_method="POST") AND (request_body MATCHES "(?i).*(union|select|insert|update|delete|or\s+1=1|'\s+OR\s+').*"🔗 References
- https://github.com/BurakSevben/CVEs/blob/main/Simple%20Chat%20App/Simple%20Chat%20App%20-%20SQL%20Injection%20-%201.md
- https://vuldb.com/?ctiid.264537
- https://vuldb.com/?id.264537
- https://vuldb.com/?submit.335199
- https://github.com/BurakSevben/CVEs/blob/main/Simple%20Chat%20App/Simple%20Chat%20App%20-%20SQL%20Injection%20-%201.md
- https://vuldb.com/?ctiid.264537
- https://vuldb.com/?id.264537
- https://vuldb.com/?submit.335199
