LangChain < 0.0.27 SSRF

#%NASL_MIN_LEVEL 80900

##
# Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(213564);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/01/16");

  script_cve_id("CVE-2024-2057");

  script_name(english:"LangChain < 0.0.27 SSRF");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of LangChain installed on the remote host is prior to 0.0.27. It is, therefore, affected by a
server-side request forgery (SSRF) vulnerability in the function load_local in the library 
libs/community/langchain_community/retrievers/tfidf.py of the component TFIDFRetriever. 

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://vuldb.com/?ctiid.255372");
  script_set_attribute(attribute:"see_also", value:"https://vuldb.com/?id.255372");
  script_set_attribute(attribute:"see_also", value:"https://github.com/langchain-ai/langchain/pull/18695");
  script_set_attribute(attribute:"solution", value:
"Upgrade to LangChain version 0.0.27 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-2057");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(918);

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/03/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/03/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/01/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:langchain:langchain");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Artificial Intelligence");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("python_langchain_detect.nbin");
  script_require_keys("installed_sw/LangChain");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::get_app_info(app:'LangChain');
var constraints = [
    { 'fixed_version':'0.0.27' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);