CVE-2018-5972
📋 TL;DR
This SQL injection vulnerability in Quickad 4.0 allows attackers to execute arbitrary SQL commands through the keywords, placeid, cat, or subcat parameters in listing URLs. This affects all installations of Quickad 4.0 that expose the classified ads functionality to users. Attackers can potentially access, modify, or delete database content.
💻 Affected Systems
- Quickad Classified Ads CMS
📦 What is this software?
Quickad by Quickad Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, and potential remote code execution if database permissions allow file system access or command execution.
Likely Case
Unauthorized access to classified ads data, user information, and potential privilege escalation to administrative access.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
Exploit code is publicly available and requires no authentication. Simple parameter manipulation can trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check for updated version from vendor. 2. If no patch available, implement parameterized queries. 3. Apply input validation to keywords, placeid, cat, and subcat parameters.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns in the vulnerable parameters.
Input Validation Filter
allAdd server-side validation to reject suspicious characters in the vulnerable parameters.
// PHP example: filter_input(INPUT_GET, 'keywords', FILTER_SANITIZE_STRING);
🧯 If You Can't Patch
- Implement network segmentation to restrict access to the Quickad application
- Deploy a web application firewall with SQL injection detection rules
🔍 How to Verify
Check if Vulnerable:
Test by appending SQL injection payloads to listing URLs with parameters like: /listing?keywords=test' OR '1'='1Check Version:
Check Quickad version in admin panel or configuration files.Verify Fix Applied:
Attempt SQL injection tests and verify they are blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple requests with SQL keywords in parameters
Network Indicators:
- HTTP requests containing SQL injection patterns in keywords, placeid, cat, or subcat parameters
SIEM Query:
source="web_logs" AND (keywords="*' OR*" OR placeid="*' OR*" OR cat="*' OR*" OR subcat="*' OR*")