CVE-2024-7456 in lunary
Summary
by MITRE • 11/01/2024
A SQL injection vulnerability exists in the `/api/v1/external-users` route of lunary-ai/lunary version v1.4.2. The `order by` clause of the SQL query uses `sql.unsafe` without prior sanitization, allowing for SQL injection. The `orderByClause` variable is constructed without server-side validation or sanitization, enabling an attacker to execute arbitrary SQL commands. Successful exploitation can lead to complete data loss, modification, or corruption.
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Analysis
by VulDB Data Team • 11/01/2024
The vulnerability identified as CVE-2024-7456 represents a critical SQL injection flaw within the lunary-ai/lunary application version 1.4.2. This security weakness specifically targets the `/api/v1/external-users` endpoint where the application processes user requests for external user data. The flaw occurs in the database query construction phase where the application employs the `sql.unsafe` function without implementing proper input sanitization or validation mechanisms. This dangerous practice directly exposes the system to malicious input manipulation that can fundamentally compromise database integrity and confidentiality.
The technical implementation of this vulnerability stems from improper handling of the `orderByClause` variable within the application's backend code. When users make requests to the external users API endpoint, the application constructs SQL queries dynamically based on user-provided ordering parameters. The use of `sql.unsafe` indicates that the developers bypassed standard parameterized query mechanisms in favor of direct string concatenation, creating an environment where attacker-controlled input can be seamlessly integrated into the SQL execution context. This approach violates fundamental security principles and creates an attack surface where malicious actors can inject arbitrary SQL commands through carefully crafted input parameters.
The operational impact of this vulnerability extends far beyond simple data retrieval manipulation. Successful exploitation allows attackers to execute arbitrary database commands with the privileges of the application's database user account, potentially enabling complete data loss, modification, or corruption of sensitive information. The vulnerability affects the entire external user management functionality, potentially exposing personal user data, authentication credentials, and other sensitive organizational information. Attackers could leverage this weakness to perform data exfiltration, inject malicious code, or establish persistent access points within the system's database infrastructure.
Security practitioners should consider this vulnerability in the context of CWE-89 which specifically addresses SQL injection flaws in software applications. The flaw also aligns with ATT&CK technique T1190 which covers exploitation of remote services through injection attacks. Organizations should immediately implement mitigations including input validation and sanitization of all user-provided parameters, replacement of unsafe SQL construction methods with parameterized queries, and implementation of proper access controls for database operations. The recommended solution involves refactoring the vulnerable code to utilize proper database abstraction layers that automatically handle input sanitization and parameter binding, thereby eliminating the dangerous `sql.unsafe` usage pattern that enables this attack vector.