CVE-2023-50866

9.8 CRITICAL

📋 TL;DR

Travel Website v1.0 has unauthenticated SQL injection vulnerabilities in the loginAction.php file, specifically in the username parameter. Attackers can execute arbitrary SQL commands without authentication, potentially compromising the entire database. All deployments of Travel Website v1.0 are affected.

💻 Affected Systems

Products:
  • Travel Website
Versions: v1.0
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of Travel Website v1.0 are vulnerable by default. The vulnerability exists in the core login functionality.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise including data theft, data destruction, authentication bypass, and potential remote code execution via database functions.

🟠

Likely Case

Database information disclosure, authentication bypass allowing admin access, and potential data manipulation.

🟢

If Mitigated

Limited impact with proper input validation and database permissions, though SQL injection attempts would still be logged.

🌐 Internet-Facing: HIGH - The vulnerability is in a login page typically exposed to the internet, allowing unauthenticated exploitation.
🏢 Internal Only: MEDIUM - If the application is only internally accessible, risk is reduced but still significant due to unauthenticated nature.

🎯 Exploit Status

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

SQL injection in login pages is commonly exploited. The advisory includes technical details that could be weaponized.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: No official vendor advisory found

Restart Required: No

Instructions:

No official patch available. Consider migrating to a different travel website platform or implementing custom fixes.

🔧 Temporary Workarounds

Input Validation Filter

all

Add input validation to filter SQL injection characters in the username parameter

Modify loginAction.php to add: $username = preg_replace('/[^a-zA-Z0-9@._-]/', '', $_POST['username']);

Web Application Firewall

all

Deploy a WAF with SQL injection protection rules

🧯 If You Can't Patch

  • Isolate the Travel Website application behind a reverse proxy with SQL injection filtering
  • Implement network segmentation to limit database access from the web server

🔍 How to Verify

Check if Vulnerable:

Test the login page with SQL injection payloads like: ' OR '1'='1 in the username field

Check Version:

Check the application files for version information, typically in README or configuration files

Verify Fix Applied:

Attempt SQL injection payloads and verify they are rejected or properly escaped

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL errors in application logs
  • Multiple failed login attempts with SQL-like patterns
  • Database connection errors

Network Indicators:

  • HTTP POST requests to loginAction.php with SQL keywords in parameters
  • Unusual database traffic patterns from web server

SIEM Query:

source="web_logs" AND uri="/loginAction.php" AND (username="*OR*" OR username="*UNION*" OR username="*SELECT*")

🔗 References

📤 Share & Export