Description

A command injection vulnerability exists in the web-based management interface of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system leading to complete system compromise.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.5",
  "pubDate": "2026-09-01T20:17:19.183Z",
  "pubdate": "2026-09-01T20:17:19.183Z",
  "executiveSummary": "A critical command injection vulnerability exists within the web-based management interface of HPE Networking Fabric Composer. This vulnerability permits an unauthenticated, remote attacker to execute arbitrary system commands on the underlying host operating system.\nThe flaw stems from improper validation of user-supplied input handled by the management interface. Successful exploitation results in complete system compromise, granting the attacker the ability to manipulate system files, exfiltrate sensitive data, or pivot further into the internal network environment.\nWhile the vulnerability is exploitable remotely without authentication, it is contingent upon specific, albeit external, preconditions. The risk level is classified as critical due to the potential for full administrative takeover of the affected networking management platform.\nOrganizations utilizing HPE Networking Fabric Composer must treat this as a high-priority security event. Immediate risk reduction strategies include network segmentation and restricting administrative interface access to trusted management subnets until official remediation is applied.",
  "technicalDetails": "The vulnerability is characterized as an OS Command Injection flaw residing in the web-based management component of HPE Networking Fabric Composer. This occurs because the application fails to adequately sanitize or escape input parameters before passing them to system-level shells or APIs responsible for executing backend administrative functions.\nAt the technical root, the management interface processes HTTP requests containing user-controllable data. When this input is processed by the application's backend logic, it is concatenated into command strings executed by the underlying operating system. Because the input is not strictly typed or validated, an attacker can supply malicious shell metacharacters—such as semicolons, pipes, or backticks—to break out of the intended command context and execute secondary, arbitrary commands.\nThe exploitation flow begins with the attacker reaching the web-based management interface over the network. Since the interface is reachable by unauthenticated users, the attacker can transmit crafted HTTP requests containing a malicious payload designed to interact with the host OS. Upon receipt, the application processes the request, inadvertently triggering the execution of the injected command with the privileges of the management service process.\nThe post-exploitation impact is severe, as the injected commands execute with the context of the service running the management interface. This effectively provides the attacker with a bridgehead onto the host appliance. Once code execution is achieved, an attacker can escalate privileges, install persistent backdoors, deploy malware, or leverage the Fabric Composer's position in the network to intercept traffic or manage connected fabric switches.\nThe requirement of 'preconditions outside the attacker's control' suggests that specific configuration settings or application states may be necessary to reach the vulnerable code path. However, once the target environment meets these conditions, the requirement for authentication is bypassed entirely, placing the security of the entire fabric management plane at risk."
}