Description

An access control vulnerability was discovered in the Credentials Manager functionality due to insufficient validation of user privileges. A remote authenticated user with limited privileges can view a limited subset of the available entries in the Credentials Manager. The actual credential values are not directly visible, but the user can delete entries or edit their properties. An attacker who deletes or edits an entry can disrupt authentication for dependent devices, and one who manipulates an entry's configuration may be able to indirectly obtain the credentials.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.4",
  "pubDate": "2026-09-08T14:17:22.210Z",
  "pubdate": "2026-09-08T14:17:22.210Z",
  "executiveSummary": "The Credentials Manager functionality exhibits an access control vulnerability stemming from improper authorization checks during user interactions. This flaw permits a remote authenticated user with limited privileges to perform unauthorized administrative actions, specifically deleting or modifying existing credential entries. Although direct exposure of credential plaintexts is not inherent, the ability to manipulate configuration properties or remove critical records poses a significant risk to the integrity and availability of authentication services. An attacker could orchestrate service disruptions by deleting dependencies or potentially exfiltrate sensitive data by modifying entry configurations to redirect or expose authentication tokens. The vulnerability requires the attacker to possess a valid low-privilege authenticated session, emphasizing a failure in the application's privilege enforcement mechanisms. If left unaddressed, this flaw compromises the confidentiality, integrity, and availability of managed credentials, enabling lateral movement or service-level denial-of-service.",
  "technicalDetails": "The root cause of this vulnerability is an Insecure Direct Object Reference (IDOR) or broken access control flaw within the Credentials Manager's backend logic. Specifically, the server-side validation routines fail to strictly enforce role-based access control (RBAC) policies when processing requests to modify or delete credential metadata. While the system correctly limits read-access to the full credential values for non-administrative users, it erroneously grants write-access to the entry object itself.\nThe exploitation flow initiates when a remote authenticated user interacts with the Credentials Manager API. The attacker identifies the URI patterns or parameters associated with credential management operations, such as DELETE requests or PUT/POST updates to existing entry IDs. Because the backend service lacks a comprehensive authorization check—relying perhaps only on the presence of a session token without verifying the user's scope of authority—it processes the request as if it originated from a privileged administrator.\nDuring the attack, a low-privileged user can systematically enumerate entry identifiers. Once an ID is targeted, the attacker can execute an unauthorized deletion of that credential. From a post-exploitation perspective, the impact is two-fold: first, the deletion results in an immediate denial-of-service (DoS) for all devices or services that rely on the removed credential for authentication. Second, by modifying the configuration properties of an existing entry, an attacker can influence the application's workflow. For instance, an attacker might update a credential entry's remote service endpoint or callback URL to point to an attacker-controlled server. When the system subsequently attempts to use the modified entry, it may transmit authentication secrets, tokens, or secondary keys to the malicious endpoint, resulting in an indirect exfiltration of sensitive information.\nThe vulnerability is restricted to authenticated users, meaning that initial network access or a compromised low-level account is a strict requirement for exploitation. The attack surface is limited to the Credentials Manager component. The lack of granular privilege validation suggests that the application logic fails to distinguish between the 'read-only' capability assigned to limited users and the 'full-control' capability reserved for administrative roles, effectively elevating the user's privilege context within the scope of the management function."
}