Description

A vulnerability in an API endpoint of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to spoof the source address attributed to their requests. Successful exploitation could allow an attacker to cause inaccurate attribution information to be recorded on the affected system.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "4.3",
  "pubDate": "2026-09-01T20:17:21.850Z",
  "pubdate": "2026-09-01T20:17:21.850Z",
  "executiveSummary": "A security vulnerability exists within an API endpoint of HPE Networking Fabric Composer that permits authenticated low-privilege operator users to manipulate source address attribution.\nThe vulnerability is classified as an improper input validation or improper authentication state handling issue, which allows for the spoofing of origin data associated with API requests.\nThe primary impact involves the compromise of audit trails and system logs, leading to inaccurate attribution of administrative or operational actions within the system.\nAn attacker must possess authenticated access to the system as a low-privilege operator to exploit this flaw; no remote unauthenticated access is described.\nThe risk implication centers on the potential for malicious actors to perform unauthorized operations while attributing the activity to other users or system processes, thereby undermining incident response, forensic integrity, and non-repudiation controls within the Fabric Composer environment.",
  "technicalDetails": "The vulnerability resides within the API request handling logic of HPE Networking Fabric Composer. It stems from an inadequate validation mechanism or a failure to strictly enforce the binding of the request source address to the authenticated session context.\nWhen an operator submits an API request, the system relies on headers or request parameters to determine the source address attribution. The lack of server-side verification allows an attacker to inject or modify these values, forcing the application to record an arbitrary source IP address or identifier in its logs and audit records.\nThe exploitation flow begins with the attacker establishing a legitimate, authenticated session as a low-privilege operator. Once authenticated, the attacker crafts a malicious API request, intentionally injecting headers or parameters such as X-Forwarded-For or other custom metadata fields that the application logic incorrectly trusts.\nBecause the API backend fails to correlate the session ID with the true network connection metadata—instead relying on client-supplied information—the application processes the request and commits the spoofed data to its internal telemetry, audit logs, and security monitoring subsystems.\nThis behavior allows an attacker to obfuscate their activities by misrepresenting the origin of specific commands, effectively masking their presence and potentially framing other entities. Because the system serves as a centralized management plane for networking fabric, the integrity of these logs is critical for maintaining compliance and security monitoring.\nThe vulnerability specifically affects the API endpoint responsible for logging and auditing user-initiated actions. While this does not inherently grant the attacker elevated privileges (Privilege Escalation), it represents a critical failure in accountability. The impact is primarily post-exploitation, where the falsification of system records prevents administrators from effectively tracing the source of malicious configuration changes or unauthorized data access during security audits.\nThe attack is characterized by its reliance on authenticated access, implying that existing internal access controls remain the primary barrier to exploitation. Without robust server-side enforcement of source attribution based on verified connection socket data, the integrity of the audit subsystem remains compromised."
}