Description

A privilege escalation vulnerability exists in the web-based management interface of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low privilege operator user to complete state-changing actions that should not be allowed by their current level of authorization on the platform.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.1",
  "pubDate": "2026-09-01T20:17:19.837Z",
  "pubdate": "2026-09-01T20:17:19.837Z",
  "executiveSummary": "A privilege escalation vulnerability exists within the web-based management interface of HPE Networking Fabric Composer.\nThe vulnerability allows an authenticated operator with low-level privileges to bypass authorization constraints and execute state-changing actions reserved for higher-privileged administrative roles.\nThis flaw involves a failure in the application's access control enforcement logic, which improperly validates user authorization levels before processing sensitive operations.\nThe impact includes the potential for unauthorized configuration changes, system manipulation, and potential compromise of the networking fabric management plane.\nExploitation requires the attacker to possess a valid, low-privileged authenticated session on the management interface.\nSuccessful exploitation risks the integrity and availability of the networking fabric by allowing non-admin users to alter system-wide settings or disrupt critical network services.",
  "technicalDetails": "The vulnerability originates from a deficiency in the authorization enforcement mechanism within the HPE Networking Fabric Composer web-based management interface.\nSpecifically, the application's backend API endpoints responsible for state-changing operations fail to perform granular server-side validation of the authenticated user's authorization claims.\nWhile the user is properly authenticated to the platform, the application relies on client-side restrictions or incomplete server-side checks to limit access to administrative functions.\nAn attacker can exploit this by intercepting and modifying legitimate HTTP requests directed toward restricted API endpoints or by directly invoking administrative API methods that are inadequately protected against unauthorized access.\nThe attack flow proceeds as follows: First, the attacker establishes a valid session with low-privileged credentials. Second, the attacker identifies the API endpoints or function calls responsible for sensitive configuration modifications or state-changing operations.\nThird, by crafting specific requests—typically through the manipulation of request parameters, headers, or method types—the attacker bypasses the restricted interface elements intended for low-privileged users.\nThe server-side application logic processes these requests, mistakenly attributing sufficient authorization to the caller because the request originated from an authenticated user context, without verifying if the user possesses the necessary role-based access control (RBAC) permissions to perform the requested action.\nThis lack of authorization verification allows for horizontal or vertical privilege escalation, where the operator performs actions outside their scope of authority.\nThe vulnerable component is the RESTful API middleware or the backend authorization controller governing the web management interface of HPE Networking Fabric Composer.\nThis vulnerability effectively renders the intended RBAC model ineffective, enabling a low-privileged operator to transition into an unauthorized administrative state, leading to complete management plane compromise within the application environment."
}