CVE-2024-3429 in lollms
Summary
by MITRE • 06/06/2024
A path traversal vulnerability exists in the parisneo/lollms application, specifically within the `sanitize_path_from_endpoint` and `sanitize_path` functions in `lollms_core\lollms\security.py`. This vulnerability allows for arbitrary file reading when the application is running on Windows. The issue arises due to insufficient sanitization of user-supplied input, enabling attackers to bypass the path traversal protection mechanisms by crafting malicious input. Successful exploitation could lead to unauthorized access to sensitive files, information disclosure, and potentially a denial of service (DoS) condition by including numerous large or resource-intensive files. This vulnerability affects the latest version prior to 9.6.
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Analysis
by VulDB Data Team • 09/26/2024
The vulnerability identified as CVE-2024-3429 represents a critical path traversal flaw in the parisneo/lollms application that specifically targets the Windows operating system environment. This security weakness exists within the core security module of the application, namely in the `sanitize_path_from_endpoint` and `sanitize_path` functions located in `lollms_core\lollms\security.py`. The flaw stems from inadequate input validation and sanitization mechanisms that fail to properly filter or reject malicious user-supplied data containing traversal sequences such as "../" or similar path manipulation patterns. The vulnerability's impact is particularly severe on Windows systems where the file system structure and path handling behaviors create additional attack vectors that can be exploited by malicious actors.
The technical implementation of this vulnerability allows attackers to bypass existing path traversal protection mechanisms through carefully crafted input sequences that exploit the insufficient sanitization logic. When user input passes through the vulnerable functions without proper validation, the application processes these malicious paths directly, enabling unauthorized access to files outside the intended directory boundaries. This flaw operates at the application layer and specifically targets the file system access controls that should normally prevent such unauthorized operations. The vulnerability's exploitation requires minimal privileges and can be executed through standard network-based attacks, making it particularly dangerous in environments where the application processes user input from external sources.
The operational impact of CVE-2024-3429 extends beyond simple information disclosure to potentially enable complete system compromise through unauthorized file access. Attackers can leverage this vulnerability to read sensitive configuration files, authentication credentials, application source code, and other confidential data stored on the system. The potential for denial of service conditions exists when attackers include references to large or resource-intensive files in their malicious input, causing the application to consume excessive system resources or crash. This vulnerability directly maps to CWE-22 Path Traversal and aligns with ATT&CK technique T1083 File and Directory Discovery, representing a significant threat to data confidentiality and system availability. The vulnerability affects versions prior to 9.6, indicating that organizations running older releases face immediate risk without proper mitigation measures.
Organizations should implement immediate mitigations including updating to version 9.6 or later where the vulnerability has been patched, applying input validation controls at multiple layers of the application architecture, and implementing proper path normalization and canonicalization techniques. Network segmentation and access controls should be enforced to limit exposure of the vulnerable application to untrusted users. Security monitoring should be enhanced to detect unusual file access patterns and potential exploitation attempts. The fix typically involves strengthening the sanitization functions to properly reject or normalize path traversal sequences, implementing whitelist-based path validation, and ensuring that all user-supplied paths are validated against a known safe set of directories and file access patterns. Regular security audits and penetration testing should be conducted to verify the effectiveness of implemented controls and identify potential additional vulnerabilities in similar application components.