CVE-2024-1740 in lunary
Summary
by MITRE • 04/10/2024
In lunary-ai/lunary version 1.0.1, a vulnerability exists where a user removed from an organization can still read, create, modify, and delete logs by re-using an old authorization token. The lunary web application communicates with the server using an 'Authorization' token in the browser, which does not properly invalidate upon the user's removal from the organization. This allows the removed user to perform unauthorized actions on logs and access project and external user details without valid permissions.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 01/10/2025
This vulnerability in lunary-ai/lunary version 1.0.1 represents a critical authorization flaw that violates fundamental security principles of access control and session management. The issue stems from improper token invalidation mechanisms within the web application's authentication system, creating a persistent security gap where revoked user credentials remain functional even after administrative removal from the organization. The vulnerability manifests when a user's authorization token continues to grant full privileges including read, create, modify, and delete operations on logs, along with access to project and external user details, despite the user no longer having legitimate access rights.
The technical implementation flaw resides in the application's failure to properly invalidate session tokens upon user removal from an organization. This represents a classic case of insufficient session management where the authorization system does not maintain proper state tracking between user permissions and active tokens. The vulnerability allows for privilege escalation and unauthorized data access through token reuse, which directly maps to CWE-613: Insufficient Session Expiration and CWE-306: Missing Authentication for Critical Function. The lack of proper token revocation mechanisms creates a persistent backdoor that remains active until the token naturally expires, potentially providing attackers with extended access windows.
Operationally, this vulnerability creates significant risks for organizations using the lunary platform, as it enables former employees or unauthorized individuals to maintain access to sensitive operational data and system functionalities. The impact extends beyond simple data exposure to include potential data manipulation and integrity compromise, as the removed user can perform write operations on logs and access confidential project information. This represents a serious violation of the principle of least privilege and could lead to audit trail manipulation, data leakage, and unauthorized system modifications. The vulnerability is particularly concerning in environments where log data serves as critical operational intelligence and security monitoring.
The recommended mitigations for this vulnerability involve implementing robust session management protocols with immediate token invalidation upon user removal or permission changes. Organizations should deploy proper session termination mechanisms that invalidate all active tokens associated with a user account when administrative changes occur. This includes implementing server-side token validation that checks user status and permissions on each request rather than relying solely on client-side token state. The solution should incorporate proper session lifecycle management as outlined in the OWASP Top Ten and ATT&CK techniques related to credential access and privilege escalation. Additionally, implementing short-lived tokens with automatic refresh mechanisms, combined with server-side session validation, would significantly reduce the risk window and prevent unauthorized access through token reuse.