CVE-2024-6582 in lunary
Summary
by MITRE • 09/13/2024
A broken access control vulnerability exists in the latest version of lunary-ai/lunary. The `saml.ts` file allows a user from one organization to update the Identity Provider (IDP) settings and view the SSO metadata of another organization. This vulnerability can lead to unauthorized access and potential account takeover if the email of a user in the target organization is known.
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Analysis
by VulDB Data Team • 09/20/2024
The vulnerability described in CVE-2024-6582 represents a critical broken access control flaw within the lunary-ai/lunary platform that undermines fundamental security boundaries between organizational entities. This weakness exists specifically within the saml.ts file where the application fails to properly validate authorization contexts when processing requests related to SAML Identity Provider configuration updates and SSO metadata retrieval. The flaw allows malicious actors to exploit the lack of proper access controls to manipulate or access sensitive configuration data belonging to different organizations within the same system, fundamentally violating the principle of least privilege and organizational isolation that should be maintained in multi-tenant applications.
The technical implementation of this vulnerability stems from inadequate input validation and authorization checks within the SAML configuration management functions. When users attempt to update IDP settings or retrieve SSO metadata through the saml.ts module, the application does not sufficiently verify whether the requesting user belongs to the same organization as the target configuration data. This creates a direct path for cross-organizational data leakage and manipulation where an attacker can leverage knowledge of a target organization's email addresses to impersonate legitimate users and gain unauthorized access to sensitive SAML configuration parameters. The vulnerability is particularly concerning because it operates at the authentication and authorization layer, potentially enabling attackers to establish persistent access points or manipulate single sign-on configurations to compromise entire organizations.
The operational impact of this vulnerability extends beyond simple data exposure to encompass potential account takeover scenarios and broader security breaches within the affected platform. Attackers who discover valid email addresses from target organizations can exploit this access control failure to modify SAML settings, potentially redirecting authentication flows to malicious endpoints or extracting sensitive metadata that could be used in subsequent attacks. The vulnerability aligns with CWE-285 which addresses improper authorization issues, and specifically relates to ATT&CK technique T1078 which covers valid accounts and T1531 which involves modification of authentication processes. Organizations using the lunary platform may face significant risks including unauthorized access to customer data, potential compromise of authentication infrastructure, and the ability to conduct reconnaissance activities against other tenants within the same system.
Mitigation strategies for this vulnerability must address both the immediate technical flaw and broader architectural security considerations. Organizations should implement proper access control validation mechanisms that enforce organizational boundaries when processing SAML configuration requests, ensuring that all operations are properly authenticated and authorized within the correct organizational context. The saml.ts file requires immediate code review and modification to include robust organization context verification before allowing any updates to IDP settings or metadata retrieval operations. Security measures should also include implementing proper audit logging of all SAML configuration changes, establishing rate limiting for authentication-related requests, and ensuring that email addresses are not exposed in ways that could facilitate targeted attacks. Additionally, regular security testing including penetration testing and code reviews should be conducted to identify similar access control vulnerabilities that may exist in other parts of the application's authentication and authorization framework.