CVE-2025-26616

Remediation/Mitigation Strategy for CVE-2025-26616 - WeGIA Path Traversal

This document outlines the vulnerability, its severity, potential exploits, and the necessary steps to remediate or mitigate the risk.

1. Vulnerability Description:

  • Vulnerability: Path Traversal
  • Component: exportar_dump.php endpoint in WeGIA
  • Description: The exportar_dump.php endpoint in WeGIA versions prior to 3.2.14 is vulnerable to a path traversal attack. This allows an attacker to potentially access arbitrary files on the server, including sensitive configuration files.

2. Severity:

  • CVE ID: CVE-2025-26616
  • CVSS Score (Based on data provided which doesn’t have all the components, a realistic estimation is provided. The actual score may vary based on a full CVSS calculation.):
    • Base Score: 7.5 (High) - Assuming network attack vector, low attack complexity, no privileges required, no user interaction, high confidentiality impact, no integrity impact, no availability impact.
  • Severity Level: High
  • Justification: Successful exploitation allows unauthorized access to sensitive information, specifically the config.php file. This file likely contains database credentials, potentially leading to a full compromise of the application’s data.

3. Known Exploit(s):

  • Description: An attacker could craft a malicious HTTP request to the exportar_dump.php endpoint, using path traversal sequences (e.g., ../../) to navigate the file system and access the config.php file. For example:

    GET /exportar_dump.php?file=../../config.php HTTP/1.1

    Host: [target_wegia_server]

    This request attempts to retrieve the contents of config.php by traversing up the directory tree from the expected location of the exportar_dump.php script.

  • Exploitability: Relatively easy to exploit, requiring only basic knowledge of HTTP requests and path traversal techniques.

4. Remediation Strategy:

  • Primary Action: Upgrade to WeGIA version 3.2.14 or later. This is the most effective and recommended solution, as the vulnerability has been patched in this version.

    • Steps for Upgrade:
      1. Backup: Before upgrading, create a full backup of the WeGIA application, including the database and all relevant files. This is crucial for rollback purposes in case of any issues during the upgrade process.
      2. Download: Obtain the latest version of WeGIA (3.2.14 or later) from the official WeGIA website or the appropriate repository.
      3. Installation: Follow the upgrade instructions provided with the new version. Typically, this involves replacing the existing application files with the new ones and running any necessary database migration scripts.
      4. Verification: After the upgrade, thoroughly test the application to ensure it is functioning correctly and that the vulnerability has been resolved. Specifically, attempt to exploit the exportar_dump.php endpoint with path traversal techniques to verify the patch.

5. Mitigation Strategy (If Upgrade is Immediately Impossible):

  • Note: These mitigations are less effective than upgrading and should only be considered as temporary measures until an upgrade can be performed.

    • Access Control (Highly Recommended): Restrict access to the exportar_dump.php file to authorized users only. This can be done using web server configuration (e.g., .htaccess for Apache or equivalent for other web servers) or through application-level authentication and authorization mechanisms.

      • Example Apache .htaccess (Place in the directory containing exportar_dump.php):

                <Files "exportar_dump.php">

        AuthType Basic AuthName “Restricted Access” AuthUserFile /path/to/your/.htpasswd Require valid-user

        • Remember to create and manage the .htpasswd file appropriately.

    • Input Validation (Less Effective Alone): Implement strict input validation on the file parameter of the exportar_dump.php endpoint. Specifically, validate that the provided file path:

      • Does not contain path traversal sequences (e.g., ../, ..\\).
      • Is within an allowed directory (e.g., a safe export directory).
      • Does not contain sensitive file extensions (e.g., .php, .ini, .config).

      Important: Input validation alone is often insufficient to prevent path traversal attacks. Attackers may find ways to bypass validation rules. Therefore, it should only be used as a supplemental security measure.

    • Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) to detect and block path traversal attacks targeting the exportar_dump.php endpoint. Configure the WAF with appropriate rules and signatures to identify and block malicious requests.

6. Monitoring and Logging:

  • Enable detailed logging on the web server: Record all requests to the exportar_dump.php endpoint, including the source IP address, request parameters, and response status.
  • Monitor logs for suspicious activity: Regularly review the web server logs for any attempts to access the exportar_dump.php endpoint with path traversal sequences or other unusual patterns.
  • Implement intrusion detection/prevention systems (IDS/IPS): Deploy IDS/IPS systems to detect and block exploitation attempts in real-time.

7. Communication:

  • Inform all stakeholders (e.g., system administrators, developers, security team, users) about the vulnerability and the remediation/mitigation steps being taken.

8. Timeline:

  • Immediate: Apply the mitigation steps (if upgrade is not immediately possible).
  • Within 24-48 hours: Schedule and perform the upgrade to WeGIA version 3.2.14 or later.
  • Ongoing: Continue to monitor logs and maintain security measures.

Disclaimer: This remediation/mitigation strategy is based on the information provided in the security advisory. It is essential to conduct a thorough assessment of your specific environment and tailor the strategy accordingly. Consult with security professionals if needed.

Assigner

Date

  • Published Date: 2025-02-18 20:30:01
  • Updated Date: 2025-02-18 21:15:30

More Details

CVE-2025-26616