CVE-2018-5977

9.8 CRITICAL

📋 TL;DR

CVE-2018-5977 is a critical SQL injection vulnerability in Affiligator Affiliate Webshop Management System 2.1.0 that allows attackers to execute arbitrary SQL commands via the search functionality. This affects all organizations using the vulnerable version of this e-commerce platform. Successful exploitation could lead to complete database compromise.

💻 Affected Systems

Products:
  • Affiligator Affiliate Webshop Management System
Versions: 2.1.0
Operating Systems: All platforms running the software
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default installation; no special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database takeover allowing data theft, modification, or deletion; potential remote code execution if database configuration permits; full system compromise.

🟠

Likely Case

Database information disclosure including customer data, financial records, and administrative credentials; potential privilege escalation.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries; database access restricted to read-only operations.

🌐 Internet-Facing: HIGH - The vulnerable endpoint is typically exposed to the internet via web interface, making it accessible to remote attackers.
🏢 Internal Only: MEDIUM - Internal users could exploit this vulnerability if they have access to the web interface, though external threat is higher.

🎯 Exploit Status

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

Public exploit code is available; exploitation requires no authentication and uses simple SQL injection techniques.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: No official vendor advisory found

Restart Required: No

Instructions:

1. Check for updated versions from the vendor
2. If no patch available, implement workarounds
3. Consider migrating to alternative software

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement strict input validation and parameterized queries for all search parameters

Modify search.php to use prepared statements:
$stmt = $conn->prepare('SELECT * FROM products WHERE name LIKE ? AND price BETWEEN ? AND ?');
$stmt->bind_param('sdd', $q, $min_price, $max_price);

Web Application Firewall (WAF)

all

Deploy WAF rules to block SQL injection patterns in search parameters

Add WAF rule: Block requests containing SQL keywords in q, price_type, or price parameters

🧯 If You Can't Patch

  • Disable the vulnerable search functionality entirely
  • Implement network segmentation to restrict access to the affected system

🔍 How to Verify

Check if Vulnerable:

Test the search endpoint with SQL injection payloads: /search/?q=test' OR '1'='1&price_type=range&price=1-100

Check Version:

Check software version in admin panel or configuration files

Verify Fix Applied:

Test with the same payloads and verify they are rejected or sanitized; check that prepared statements are implemented

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in application logs
  • Multiple failed login attempts following search requests
  • Long or malformed search parameters

Network Indicators:

  • HTTP requests with SQL keywords in search parameters
  • Unusual database connection patterns from web server

SIEM Query:

source="web_logs" AND (uri="/search/" AND (param="q" CONTAINS "' OR" OR param="q" CONTAINS "UNION" OR param="q" CONTAINS "SELECT"))

🔗 References

📤 Share & Export