parisneo lollms-webui /install_extension ExtensionBuilder Name path traversal

Summaryinfo

A vulnerability was found in parisneo lollms-webui. It has been classified as very critical. Impacted is the function ExtensionBuilder of the file /install_extension. This manipulation of the argument Name causes path traversal. The identification of this vulnerability is CVE-2024-4320. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in parisneo lollms-webui (unknown version) and classified as very critical. Affected by this vulnerability is the function ExtensionBuilder of the file /install_extension. The manipulation of the argument name with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-29. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A remote code execution (RCE) vulnerability exists in the '/install_extension' endpoint of the parisneo/lollms-webui application, specifically within the `@router.post("/install_extension")` route handler. The vulnerability arises due to improper handling of the `name` parameter in the `ExtensionBuilder().build_extension()` method, which allows for local file inclusion (LFI) leading to arbitrary code execution. An attacker can exploit this vulnerability by crafting a malicious `name` parameter that causes the server to load and execute a `__init__.py` file from an arbitrary location, such as the upload directory for discussions. This vulnerability affects the latest version of parisneo/lollms-webui and can lead to remote code execution without requiring user interaction, especially when the application is exposed to an external endpoint or operated in headless mode.

The advisory is shared at huntr.com. This vulnerability is known as CVE-2024-4320 since 04/29/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/18/2024). MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• parisneo

Name

• lollms-webui

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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Entryinfo

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