CVE-2020-23971:Joomla Component GMapFP J3.30pro suffers from insecure permissions allowing unauthenticated arbitrary file upload.

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The GMapFP component version J3.30pro for Joomla has critical security vulnerabilities related to improper access controls and unrestricted file uploads. Attackers can access the upload functionality without authentication and bypass file upload restrictions by manipulating content-type headers and using double file extensions. This vulnerability allows malicious users to upload arbitrary files to the server, potentially leading to remote code execution.

Overview

The vulnerability in GMapFP J3.30pro for Joomla (CVE-2020-23971) is classified as CWE-276 (Incorrect Default Permissions) and involves multiple security issues. The component fails to properly authenticate users before allowing access to file upload functionality. Additionally, the file upload mechanism has insufficient validation, allowing attackers to bypass security checks by modifying the content-type and using double file extensions. This combination of vulnerabilities enables unauthenticated attackers to upload malicious files to the server, potentially gaining unauthorized access or executing arbitrary code.

Remediation

  1. Update GMapFP to the latest version if a patched version is available.
  2. If no patch is available, consider temporarily disabling the GMapFP component until a security update is released.
  3. Implement proper authentication checks for all upload functionality.
  4. Add robust file validation that checks both file extensions and content types.
  5. Configure server-side file execution permissions to prevent execution of uploaded files.
  6. Consider implementing a web application firewall to block suspicious upload attempts.
  7. Regularly audit file upload directories for unauthorized or suspicious files.

References

  1. Packet Storm Security - Joomla GMapFP 3.30 Arbitrary File Upload: https://packetstormsecurity.com/files/156889/Joomla-GMapFP-3.30-Arbitrary-File-Upload.html
  2. CWE-276: Incorrect Default Permissions: https://cwe.mitre.org/data/definitions/276.html
  3. MITRE CVE-2020-23971: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-23971

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Accommodation & Food Services
    Accommodation & Food Services
  2. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  3. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  4. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  5. Construction
    Construction
  6. Educational Services
    Educational Services
  7. Finance and Insurance
    Finance and Insurance
  8. Health Care & Social Assistance
    Health Care & Social Assistance
  9. Information
    Information
  10. Management of Companies & Enterprises
    Management of Companies & Enterprises
  11. Manufacturing
    Manufacturing
  12. Mining
    Mining
  13. Other Services (except Public Administration)
    Other Services (except Public Administration)
  14. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  15. Public Administration
    Public Administration
  16. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  17. Retail Trade
    Retail Trade
  18. Transportation & Warehousing
    Transportation & Warehousing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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