Node.js Module node-tar < 7.5.11 Arbitrary File Overwrite

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

include('compat.inc');

if (description)
{
  script_id(318798);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/05");

  script_cve_id("CVE-2026-31802");
  script_xref(name:"IAVB", value:"2026-B-0066");

  script_name(english:"Node.js Module node-tar < 7.5.11 Arbitrary File Overwrite");

  script_set_attribute(attribute:"synopsis", value:
"A module in the Node.js JavaScript run-time environment is affected by an arbitrary file overwrite vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of node-tar installed on the remote host is prior to 7.5.11. It is, therefore, affected by a
vulnerability:

  - node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into
    creating a symlink that points outside the extraction directory by using a drive-relative symlink target
    such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction.
    This vulnerability is fixed in 7.5.11. (CVE-2026-31802)

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/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?50b50f5d");
  script_set_attribute(attribute:"solution", value:
"Upgrade to node-tar version 7.5.11 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:C/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-31802");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/03/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"asset_categories", value:"component");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:node-tar_project:node-tar");
  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) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("nodejs_modules_win_installed.nbin", "nodejs_modules_linux_installed.nbin", "nodejs_modules_mac_installed.nbin");
  script_require_keys("Host/nodejs/modules/enumerated");

  exit(0);
}

include('vcf_extras_nodejs.inc');

var app_info = vcf_extras::nodejs_modules::get_app_info(app:'tar');

if (empty_or_null(app_info))
  audit(AUDIT_NOT_INST, 'tar');

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  { 'min_version' : '7.0.0', 'fixed_version' : '7.5.11' }
];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);