CVE-2018-18922:Remote privilege escalation in AbiSoft Ticketly 1.0 allowing an attacker to create administrator accounts via a POST to action/add_user.php.

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CVE-2018-18922 affects AbiSoft Ticketly 1.0, where the add_user functionality can be misused by remote attackers to create administrator accounts through a POST request to action/add_user.php. This vulnerability enables unauthorized users to elevate privileges by gaining admin access, effectively compromising the system’s security and control over ticketing operations. The issue is documented with public disclosures and exploit references, underscoring the risk of unauthorized admin account creation via a vulnerable endpoint.

Overview

AbiSoft Ticketly 1.0 contains an insecure add_user endpoint that accepts a POST request to action/add_user.php, enabling remote attackers to create administrator accounts. The flaw effectively allows privilege escalation by abusing the user creation mechanism without proper authorization, potentially leading to full administrative access and control over the application.

Remediation

  • Upgrade to a vendor-fixed release or patch that addresses CVE-2018-18922. Verify with the vendor’s security advisories and apply any available updates.
  • If an immediate patch is not available, mitigate by securing the endpoint:
    • Require proper authentication and authorization for any add_user operations; ensure only existing admins can create new accounts.
    • Implement CSRF protections for POST requests to add_user.php and related endpoints.
    • Add input validation and authorization checks server-side to prevent creation of admin accounts by unauthorized users.
    • Remove or restrict public exposure of the add_user endpoint if it is not needed, or replace with a more secure workflow.
  • Post-remediation actions:
    • Audit the user database for any unauthorized admin accounts and revoke or delete them.
    • Rotate credentials for existing administrator accounts and enable multi-factor authentication where possible.
    • Enable enhanced logging and alerting for account creation events, with real-time monitoring for suspicious admin-creation activity.
    • Conduct a targeted security test to verify that only authorized admin accounts can be created after applying fixes.

References

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

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