Description

Vulnerabilities in the API endpoint of AOS-CX could allow a remote attacker authenticated with low privileges to access sensitive information. A successful exploit allows an attacker to retrieve information which could be used to potentially gain further access to network services supported by AOS-CX.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.7",
  "pubDate": "2026-09-01T21:18:44.303Z",
  "pubdate": "2026-09-01T21:18:44.303Z",
  "executiveSummary": "This vulnerability involves an information disclosure flaw residing within the API interface of the AOS-CX network operating system.\nThe vulnerability allows a remote attacker who has successfully authenticated with low-privilege credentials to perform unauthorized retrieval of sensitive system data.\nThe primary risk implications involve the extraction of configuration data, environmental state details, or cryptographic artifacts that are otherwise restricted from low-privilege accounts.\nBy leveraging this API-level exposure, an attacker can obtain reconnaissance data necessary to facilitate lateral movement, escalate privileges, or bypass further security controls within the network environment.\nExploitation requires the attacker to possess valid, low-privileged authentication credentials for the target device, enabling them to interact with the API endpoints that fail to enforce proper authorization checks.\nThe scope of impact is limited to the confidentiality of network configuration and service metadata, but the resulting intelligence can be weaponized to compromise the broader availability and integrity of network services managed by AOS-CX.",
  "technicalDetails": "The vulnerability originates from an improper authorization implementation within the AOS-CX API framework. Specifically, the API endpoint responsible for serving configuration or status metadata fails to adequately validate the functional permissions assigned to the authenticated user.\nEven when restricted to low-privileged roles, the API service processes requests for information objects that are explicitly intended to be restricted to administrative or elevated roles. This represents a breakdown in the Principle of Least Privilege (PoLP) and a failure in access control enforcement at the application layer.\nThe attack flow begins with the adversary establishing an authenticated session with the AOS-CX management interface. Using the provided low-privileged credentials, the attacker initiates HTTP or HTTPS requests directed at specific, undocumented or restricted API paths. Because the underlying logic lacks granular object-level authorization, the system processes the request and returns the serialized content of sensitive data structures directly to the client.\nThe technical root cause involves a misconfiguration or logic flaw in the API middleware or the backend controllers, which prioritize successful data retrieval over authorization policy enforcement for the specific service requested. The payload of such an exploit typically consists of standard API requests utilizing GET or POST methods that target the vulnerable endpoints, often involving manipulation of query parameters or header values to bypass initial front-end checks if present.\nSuccessful exploitation allows for the exfiltration of system-specific artifacts, such as routing tables, neighbor discovery information, or internal configuration state, which are critical for network reconnaissance. In a post-exploitation scenario, an attacker utilizes this exfiltrated data to identify further entry points or vulnerabilities in the underlying network services supported by the AOS-CX instance. This information effectively acts as an intelligence bridge, permitting the attacker to map the internal network topology or identify specific service versions for targeted exploitation of secondary network services."
}