CVE-2025-4889

5.3 MEDIUM

📋 TL;DR

A critical buffer overflow vulnerability exists in the Tourism Management System 1.0 User Registration component. Attackers with local access can exploit this by manipulating username/password arguments during user registration, potentially leading to arbitrary code execution. This affects all installations of Tourism Management System 1.0.

💻 Affected Systems

Products:
  • Tourism Management System
Versions: 1.0
Operating Systems: All platforms running the software
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of version 1.0 are vulnerable. No specific OS requirements mentioned.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Local privilege escalation leading to complete system compromise, data theft, or installation of persistent malware.

🟠

Likely Case

Local user gains elevated privileges, modifies system configurations, or accesses sensitive tourism management data.

🟢

If Mitigated

Attack contained to local user context with limited impact due to proper access controls and segmentation.

🌐 Internet-Facing: LOW - Local access required, not directly exploitable over network.
🏢 Internal Only: HIGH - Any local user can potentially exploit this vulnerability to gain elevated privileges.

🎯 Exploit Status

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

Exploit requires local access but has been publicly disclosed. Attack manipulation is straightforward via username/password fields.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: https://code-projects.org/

Restart Required: No

Instructions:

No official patch available. Consider upgrading to a newer version if available, or implement workarounds.

🔧 Temporary Workarounds

Disable User Registration

all

Temporarily disable the vulnerable AddUser function or entire user registration component

# Modify application configuration to disable user registration
# Remove or comment out registration form in web interface

Input Validation Filter

all

Implement strict input validation for username and password fields

# Add length and character validation before processing user input
# Example: if len(username) > 255: reject

🧯 If You Can't Patch

  • Restrict local access to only trusted users and implement strict user account controls
  • Deploy application in isolated environment with minimal privileges and network segmentation

🔍 How to Verify

Check if Vulnerable:

Check if running Tourism Management System version 1.0. Review source code for vulnerable AddUser function with insufficient buffer bounds checking.

Check Version:

# Check application version in admin panel or configuration files

Verify Fix Applied:

Test user registration with long username/password inputs to ensure proper validation and no crashes.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed user registration attempts with unusually long inputs
  • Application crashes or abnormal termination during registration

Network Indicators:

  • Not applicable - local exploit only

SIEM Query:

source="tourism-management" AND (event="user_registration" AND (input_length>255 OR contains(error, "buffer")))

🔗 References

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