Description

Privilege escalation vulnerabilities exist in the API 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, including changes to the configuration of systems managed by the affected product.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.5",
  "pubDate": "2026-09-01T20:17:18.087Z",
  "pubdate": "2026-09-01T20:17:18.087Z",
  "executiveSummary": "HPE Networking Fabric Composer contains a critical privilege escalation vulnerability within its API layer. The flaw allows an authenticated user, assigned a low-privilege operator role, to perform unauthorized state-changing operations typically restricted to higher-level administrative accounts.\nThe vulnerability resides in the authorization enforcement mechanism of the product's API endpoints. By bypassing intended access control checks, a malicious actor could exert control over the configuration of managed systems, leading to complete compromise of the underlying networking fabric.\nThis vulnerability poses a significant risk to organizational infrastructure, as it enables lateral movement and persistent configuration tampering from a low-privilege security context. Exploitation requires the attacker to possess legitimate, albeit restricted, credentials within the system. Once authenticated, the attacker can leverage the flawed API to manipulate system states, potentially leading to unauthorized network access, service disruption, or total administrative takeover of the managed networking environment.",
  "technicalDetails": "The vulnerability is rooted in an Insecure Direct Object Reference (IDOR) or a broken object-level authorization (BOLA) flaw within the API component of HPE Networking Fabric Composer. The system fails to perform server-side validation of the user's authorization level against the specific requested state-changing action.\nIn a standard operating scenario, the API should enforce strict Role-Based Access Control (RBAC) to ensure that only authorized administrative users can modify the configuration of the network fabric. However, the identified flaw allows a user with operator-level permissions to interact with API endpoints designated for administrative functions. The application incorrectly trusts the request context or fails to verify the session scope during the execution of specific API calls.\nThe attack flow begins with an authenticated operator user interacting with the product’s API. Through the manipulation of request parameters or by directly targeting administrative endpoints that lack sufficient authorization wrappers, the user bypasses the intended security boundaries. The API service, failing to reconcile the current session's assigned privileges with the requested operation, processes the request as if it were initiated by an authorized administrator.\nThis allows the execution of sensitive configuration changes, including but not limited to, the modification of network policies, provisioning of unauthorized nodes, or the reconfiguration of managed switches and routing components. Because the product manages critical network infrastructure, the payload impact is significant: an attacker could effectively gain full operational control over the fabric, re-route traffic, or disable security segments defined within the Composer environment.\nThe vulnerability exists because the application logic assumes the integrity of the request path without performing a secondary verification of the user's role against the target resource's access control list (ACL). This lack of granular enforcement at the API controller level allows for the escalation of privileges, effectively elevating a restricted operator account to administrative status for the duration of the API transaction. The impact is persistent as the configuration changes are applied to the managed infrastructure, creating a direct risk of integrity loss across the entire network fabric."
}