CVE-2017-17572

9.8 CRITICAL

📋 TL;DR

CVE-2017-17572 is a critical SQL injection vulnerability in FS Amazon Clone 1.0 that allows attackers to execute arbitrary SQL commands via the PATH_INFO parameter to /VerAyari. This affects all deployments of FS Amazon Clone 1.0, potentially exposing database contents including user credentials and sensitive data.

💻 Affected Systems

Products:
  • FS Amazon Clone
Versions: 1.0
Operating Systems: All platforms running PHP/MySQL
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all installations of FS Amazon Clone 1.0 regardless of configuration. The software appears to be a discontinued e-commerce clone script.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, authentication bypass, remote code execution via database functions, and full system takeover.

🟠

Likely Case

Database information disclosure including user credentials, personal data, and administrative access leading to further system compromise.

🟢

If Mitigated

Limited impact with proper input validation, parameterized queries, and WAF protection blocking malicious SQL patterns.

🌐 Internet-Facing: HIGH - Web applications are typically internet-facing and this vulnerability requires no authentication.
🏢 Internal Only: MEDIUM - Internal applications could still be exploited by malicious insiders or compromised internal systems.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Multiple public exploit scripts available. Exploitation requires only web access to the vulnerable endpoint with crafted PATH_INFO parameter.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: None

Vendor Advisory: None - appears to be discontinued software

Restart Required: No

Instructions:

1. Replace FS Amazon Clone with secure, maintained e-commerce software. 2. If continuing use, manually implement parameterized queries and input validation in the affected code.

🔧 Temporary Workarounds

Web Application Firewall (WAF) Rules

all

Implement WAF rules to block SQL injection patterns in PATH_INFO parameter

# Example ModSecurity rule: SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
# For Apache: Add to .htaccess: RewriteCond %{REQUEST_URI} ^/VerAyari.*[;'"()] RewriteRule .* - [F]

Input Validation Filter

linux

Add PHP input validation for PATH_INFO parameter before processing

<?php
// Add to VerAyari handler
$path_info = $_SERVER['PATH_INFO'] ?? '';
if (preg_match('/[;\'"()\\]/', $path_info)) {
    http_response_code(400);
    exit('Invalid request');
}
?>

🧯 If You Can't Patch

  • Immediately remove FS Amazon Clone from production and replace with secure alternative
  • Isolate the vulnerable system behind strict network segmentation and access controls

🔍 How to Verify

Check if Vulnerable:

Test by accessing /VerAyari with SQL injection payload in PATH_INFO (e.g., /VerAyari' OR '1'='1). Monitor for database errors or unexpected responses.

Check Version:

Check source code files for version markers or examine database structure for FS Amazon Clone 1.0 indicators

Verify Fix Applied:

Attempt SQL injection payloads and verify they are blocked or sanitized. Check that parameterized queries are implemented in the source code.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL errors in application logs
  • Multiple requests to /VerAyari with special characters
  • Database connection errors or unusual query patterns

Network Indicators:

  • HTTP requests to /VerAyari containing SQL keywords (SELECT, UNION, etc.)
  • Abnormal database traffic from web server

SIEM Query:

source="web_logs" AND uri="/VerAyari" AND (uri="*'*" OR uri="*;*" OR uri="*--*" OR uri="*UNION*" OR uri="*SELECT*")

🔗 References

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