CVE-2025-25711

Remediation/Mitigation Strategy for CVE-2025-25711

This document outlines the remediation and mitigation strategy for CVE-2025-25711, a privilege escalation vulnerability in dtp.ae tNexus Airport View v.2.8.

1. Vulnerability Description

  • CVE ID: CVE-2025-25711
  • Component: dtp.ae tNexus Airport View
  • Version: v.2.8
  • Description: A privilege escalation vulnerability exists in dtp.ae tNexus Airport View v.2.8. A remote attacker can exploit this vulnerability by manipulating the ProfileID value when calling the [/tnexus/rest/admin/updateUser] API endpoint. This allows an attacker to elevate their privileges within the application.

2. Severity

  • CVSS Score: 8.8 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (Assumed based on score and description; requires confirmation with actual CVSS vector string if available)
  • Explanation: This vulnerability is considered High severity because it allows a remote attacker with low privileges (e.g., a regular user account) to gain full administrative access (confidentiality, integrity, and availability impact is high). The vulnerability is remotely exploitable with low attack complexity and without user interaction, further increasing the risk.

3. Known Exploit

  • Exploitability: Based on the description, an exploit is likely relatively straightforward to develop, involving crafting a malicious API request to the [/tnexus/rest/admin/updateUser] endpoint with a manipulated ProfileID. A proof-of-concept (PoC) exploit may already exist or is likely to be developed soon.
  • Impact: Successful exploitation grants the attacker administrative privileges. This can lead to:
    • Data Breach: Unauthorized access to sensitive airport data (passenger information, operational data, security protocols, etc.).
    • System Compromise: Complete control over the tNexus Airport View system, potentially allowing the attacker to modify or disable critical airport functions.
    • Lateral Movement: Potential to use the compromised system to pivot to other systems on the network.
    • Reputational Damage: Loss of trust from passengers, airlines, and other stakeholders due to security breach.

4. Remediation/Mitigation Strategy

The primary goal is to eliminate the vulnerability and prevent exploitation. The following steps are recommended:

  • Immediate Actions:

    • Isolate Vulnerable Systems (Short-Term - Critical): If feasible, isolate the tNexus Airport View v.2.8 system from the network to prevent remote access until a patch or workaround is implemented. This may involve restricting network access through firewall rules. Consider impact to operations.
    • Monitor Logs (Short-Term - Critical): Implement enhanced monitoring and logging on the tNexus Airport View system, specifically focusing on requests to the [/tnexus/rest/admin/updateUser] API endpoint. Look for suspicious activity, such as unusual ProfileID values or unexpected privilege escalations.
    • Web Application Firewall (WAF) Rule (Short-Term - Medium): If a Web Application Firewall (WAF) is in place, create a rule to block requests to the [/tnexus/rest/admin/updateUser] API endpoint that contain suspicious ProfileID values. This is a temporary mitigation and should not be considered a replacement for a proper patch. Define clear thresholds and alert parameters to identify potential exploits.

  • Long-Term Solutions (Permanent Fix - Critical):

    • Apply Patch/Upgrade (Highest Priority): The highest priority is to apply a patch provided by dtp.ae that addresses this vulnerability. Contact dtp.ae support immediately to inquire about the availability of a patch or upgrade to a patched version of tNexus Airport View. Deploy the patch in a testing environment first before applying to production.
    • Code Review (Medium Priority): If a patch is not immediately available, conduct a thorough code review of the [/tnexus/rest/admin/updateUser] API endpoint and any related code to identify the root cause of the vulnerability. Focus on input validation, authorization checks, and how ProfileID values are used to determine user privileges.
    • Implement Proper Authorization Checks (Medium Priority): Regardless of a patch, ensure that the [/tnexus/rest/admin/updateUser] API endpoint (and all other sensitive API endpoints) enforces proper authorization checks. Verify that the user making the request has the necessary privileges to perform the requested action (e.g., only administrators should be able to update user profiles). Implement the principle of least privilege.
    • Input Validation (Medium Priority): Implement robust input validation on the ProfileID value (and all other input parameters) to ensure that it is within expected ranges and conforms to a valid format. Reject any requests with invalid or unexpected input.
    • Regular Security Audits and Penetration Testing (Ongoing - Low Priority): Schedule regular security audits and penetration testing of the tNexus Airport View system to identify and address potential vulnerabilities proactively.

5. Communication

  • Inform relevant stakeholders (IT security team, system administrators, airport operations, etc.) about the vulnerability and the planned remediation/mitigation steps.
  • Maintain clear communication channels throughout the remediation process.
  • Document all actions taken and lessons learned.

6. Verification

  • After applying the patch or implementing a workaround, thoroughly test the tNexus Airport View system to verify that the vulnerability has been successfully addressed.
  • Retest the [/tnexus/rest/admin/updateUser] API endpoint with various ProfileID values to ensure that privilege escalation is no longer possible.
  • Consider engaging a third-party security firm to perform an independent verification.

7. Rollback Plan

  • Develop a rollback plan in case the patch or workaround causes unexpected issues. This plan should include steps to revert to the previous version of the system and restore the original configuration.

This document provides a general remediation/mitigation strategy. The specific steps required will depend on the specific environment and configuration of the tNexus Airport View system. Always consult with the vendor (dtp.ae) for the most accurate and up-to-date information.

Assigner

Date

  • Published Date: 2025-03-12 00:00:00
  • Updated Date: 2025-03-12 16:15:23

More Details

CVE-2025-25711