Python Library Tornado 6.5.0 DoS

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(237199);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/15");

  script_cve_id("CVE-2025-47287");

  script_name(english:"Python Library Tornado 6.5.0 DoS");

  script_set_attribute(attribute:"synopsis", value:
"A Python library installed on the remote host is affected by a DoS vulnerability.");
  script_set_attribute(attribute:"description", value:
"The detected version of the Tornado Python package, Tornado, is prior to 6.4.2.
It is therefore affected by a DoS vulnerability that happens When Tornado's multipart/form-data parser 
encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This 
allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is 
compounded by the fact that the logging subsystem is synchronous.:

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/tornadoweb/tornado/security/advisories/GHSA-7cx3-6m66-7c5m
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5105fc6c");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Tornado version 6.5.0 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-47287");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/05/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/05/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/05/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"asset_categories", value:"component");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:tornadoweb:tornado");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("python_tornado_detect.nbin");
  script_require_keys("installed_sw/tornado");

  exit(0);
}
include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [{'scope': 'target', 'match_one': {'os': ['windows', 'linux']}}],
  'checks': [
    {
      'product':{'name': 'tornado', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {
          'max_version': '6.4.2', 'fixed_version': '6.5.0'
        }
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, check_backporting:TRUE, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:result);