A Server-Side Request Forgery (SSRF) vulnerability exists in the Web Research Retriever component of langchain-ai/langchain version 0.1.5. The vulnerability arises because the Web Research Retriever does not restrict requests to remote internet addresses, allowing it to reach local addresses. This flaw enables attackers to execute port scans, access local services, and in some scenarios, read instance metadata from cloud environments. The vulnerability is particularly concerning as it can be exploited to abuse the Web Explorer server as a proxy for web attacks on third parties and interact with servers in the local network, including reading their response data. This could potentially lead to arbitrary code execution, depending on the nature of the local services. The vulnerability is limited to GET requests, as POST requests are not possible, but the impact on confidentiality, integrity, and availability is significant due to the potential for stolen credentials and state-changing interactions with internal APIs.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A Server-Side Request Forgery (SSRF) vulnerability exists in the Web Research Retriever component of
    langchain-ai/langchain version 0.1.5. The vulnerability arises because the Web Research Retriever does not
    restrict requests to remote internet addresses, allowing it to reach local addresses. This flaw enables
    attackers to execute port scans, access local services, and in some scenarios, read instance metadata from
    cloud environments. The vulnerability is particularly concerning as it can be exploited to abuse the Web
    Explorer server as a proxy for web attacks on third parties and interact with servers in the local
    network, including reading their response data. This could potentially lead to arbitrary code execution,
    depending on the nature of the local services. The vulnerability is limited to GET requests, as POST
    requests are not possible, but the impact on confidentiality, integrity, and availability is significant
    due to the potential for stolen credentials and state-changing interactions with internal APIs.
    (CVE-2024-3095)

The version of LangChain installed on the remote host is prior to 0.1.5. It is, therefore, affected by a Server-Side Request Forgery (SSRF) vulnerability exists in the Web Research Retriever component of langchain. The vulnerability arises because the Web Research Retriever does not restrict requests to remote internet addresses, allowing it to reach local addresses. This flaw enables attackers to execute port scans, access local services, and in some scenarios, read instance metadata from cloud environments. The vulnerability is particularly concerning as it can be exploited to abuse the Web Explorer server as a proxy for web attacks on third parties and interact with servers in the local network, including reading their response data. This could potentially lead to arbitrary code execution, depending on the nature of the local services. The vulnerability is limited to GET requests, as POST requests are not possible, but the impact on confidentiality, integrity, and availability is significant due to the potential for stolen credentials and state-changing interactions with internal APIs.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote host contains a langchain version that is prior to 0.2.9. It is, therefore, affected by a Server-Side Request Forgery vulnerability in the Web Research Retriever component in langchain-community (langchain-community.retrievers.web_research.WebResearchRetriever). The vulnerability arises because the Web Research Retriever does not restrict requests to remote internet addresses, allowing it to reach local addresses. This flaw enables attackers to execute port scans, access local services, and in some scenarios, read instance metadata from cloud environments. The vulnerability is particularly concerning as it can be exploited to abuse the Web Explorer server as a proxy for web attacks on third parties and interact with servers in the local network, including reading their response data. This could potentially lead to arbitrary code execution, depending on the nature of the local services. The vulnerability is limited to GET requests, as POST requests are not possible, but the impact on confidentiality, integrity, and availability is significant due to the potential for stolen credentials and state-changing interactions with internal APIs.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
421386	SCA: security update for langchain-community (GHSA-q25c-c977-4cmh)	Tenable Cloud Security	SCA Checks	high
421386	SCA: security update for langchain-community (GHSA-q25c-c977-4cmh)	Tenable Self-Hosted Container Security	SCA Checks	high
213560	LangChain < 0.1.5 SSRF	Nessus	Artificial Intelligence	high
209518	LangChain < 0.2.9 SSRF	Nessus	Artificial Intelligence	high

Detections

Analytics

CVE-2024-3095

high

Tenable Plugins

high

high

high

high