CVE-2019-25543
📋 TL;DR
Netartmedia Real Estate Portal 5.0 contains an unauthenticated SQL injection vulnerability in the page parameter of index.php. Attackers can execute arbitrary SQL queries to bypass authentication, extract sensitive data, or modify database contents. All systems running this vulnerable version are affected.
💻 Affected Systems
- Netartmedia Real Estate Portal
📦 What is this software?
Real Estate Portal by Netartmedia
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including credential theft, data exfiltration, and persistent backdoor installation leading to full system takeover.
Likely Case
Unauthenticated attackers extracting sensitive user data, administrative credentials, and manipulating database records.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation preventing database access.
🎯 Exploit Status
Public exploit code is available and requires minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor website for updated version. 2. If no patch exists, implement workarounds. 3. Consider migrating to alternative software.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to reject SQL special characters in the page parameter
Modify index.php to include: if(preg_match('/[\'\"\;\-\-]/', $_POST['page'])) { die('Invalid input'); }
WAF Rule
allImplement web application firewall rules to block SQL injection patterns
Add WAF rule: SecRule ARGS:page "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from sensitive databases
- Deploy intrusion detection systems to monitor for SQL injection attempts
🔍 How to Verify
Check if Vulnerable:
Send POST request to index.php with page parameter containing SQL injection payload like ' OR '1'='1Check Version:
Check software version in admin panel or configuration filesVerify Fix Applied:
Test with same payload and verify error messages or database responses are sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to index.php with SQL keywords in parameters
- Database error messages in application logs
Network Indicators:
- Multiple failed authentication attempts followed by successful access
- Unusual database query patterns from web server
SIEM Query:
source="web_logs" AND uri="*/index.php*" AND (param="*page=*OR*" OR param="*page=*UNION*" OR param="*page=*SELECT*")