CVE-2024-42556

9.8 CRITICAL

📋 TL;DR

This SQL injection vulnerability in Hotel Management System allows attackers to execute arbitrary SQL commands through the room_type parameter. It affects all systems running the vulnerable commit, potentially compromising database integrity and confidentiality.

💻 Affected Systems

Products:
  • Hotel Management System
Versions: Commit 91caab8 and potentially earlier versions
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the admin_room_removed.php endpoint specifically

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise including data theft, modification, deletion, and potential remote code execution on the database server.

🟠

Likely Case

Unauthorized data access, privilege escalation, and potential administrative account takeover.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries preventing exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires access to the admin interface but SQL injection is straightforward once authenticated

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available

Restart Required: No

Instructions:

1. Update to a patched version if available
2. Manually fix the vulnerable code by implementing parameterized queries
3. Replace raw SQL concatenation with prepared statements

🔧 Temporary Workarounds

Input Validation Filter

all

Add server-side validation to reject malicious room_type values

Add validation in admin_room_removed.php: if(!preg_match('/^[a-zA-Z0-9_\s]+$/', $_POST['room_type'])) { die('Invalid input'); }

WAF Rule

all

Implement web application firewall rules to block SQL injection patterns

ModSecurity rule: SecRule ARGS:room_type "@detectSQLi" "id:1001,phase:2,deny,status:403"

🧯 If You Can't Patch

  • Implement network segmentation to isolate the Hotel Management System from critical databases
  • Enable detailed SQL query logging and monitor for suspicious patterns

🔍 How to Verify

Check if Vulnerable:

Test the room_type parameter with SQL injection payloads like ' OR '1'='1

Check Version:

Check git commit hash: git log --oneline -1

Verify Fix Applied:

Verify that parameterized queries are implemented and test with SQL injection payloads

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in database logs
  • Multiple failed login attempts from admin interface
  • Unexpected database schema changes

Network Indicators:

  • Unusual SQL patterns in HTTP POST requests to admin_room_removed.php
  • Excessive database connections from web server

SIEM Query:

source="web_logs" AND uri="/admin_room_removed.php" AND (room_type="*'*" OR room_type="*;*" OR room_type="*--*" OR room_type="*/*")

🔗 References

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