LangChain up to 0.1.10 Configuration load_chain path path traversal

Summaryinfo

A vulnerability categorized as critical has been discovered in LangChain up to 0.1.10. The impacted element is the function load_chain of the component Configuration Handler. Executing a manipulation of the argument path can lead to path traversal. This vulnerability is tracked as CVE-2024-28088. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as critical was found in LangChain up to 0.1.10. This vulnerability affects the function load_chain of the component Configuration Handler. The manipulation of the argument path with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

LangChain through 0.1.10 allows ../ directory traversal by an actor who is able to control the final part of the path parameter in a load_chain call. This bypasses the intended behavior of loading configurations only from the hwchase17/langchain-hub GitHub repository. The outcome can be disclosure of an API key for a large language model online service, or remote code execution.

The weakness was disclosed 03/04/2024. The advisory is shared for download at github.com. This vulnerability was named CVE-2024-28088 since 03/03/2024. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• LangChain

Version

• 0.1.0
• 0.1.1
• 0.1.2
• 0.1.3
• 0.1.4
• 0.1.5
• 0.1.6
• 0.1.7
• 0.1.8
• 0.1.9
• 0.1.10

CPE 2.3info

• 🔍
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CPE 2.2info

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