7-Zip <= 26.02 Mark-of-the-Web Bypass (CVE-2026-58052)

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

include('compat.inc');

if (description)
{
  script_id(324932);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/06");

  script_cve_id("CVE-2026-58052");

  script_name(english:"7-Zip <= 26.02 Mark-of-the-Web Bypass (CVE-2026-58052)");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote host is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of 7-Zip installed on the remote Windows host is 26.02 or earlier. It is, therefore, affected by a
vulnerability:

  - 7-Zip for Windows fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its
    guard that suppresses an archive-supplied Zone.Identifier stream matches the exact name 'Zone.Identifier' while
    a RAR5 STM record named ':Zone.Identifier:$DATA' is not matched and NTFS canonicalizes it to the same stream,
    overwriting the propagated Internet-zone marker with ZoneId=0. A second STM record named '::$DATA' overwrites
    the extracted file's default data stream, letting an attacker defeat SmartScreen/MotW warnings and spoof file
    content. (CVE-2026-58052)

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://github.com/advisories/GHSA-fx33-p83c-vpr5");
  # https://www.vulncheck.com/advisories/7-zip-mark-of-the-web-bypass-via-rar5-alternate-data-stream-name-collision
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?793d2331");
  script_set_attribute(attribute:"solution", value:
"See vendor advisory for remediation guidance.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-58052");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/06/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:7-zip:7-zip");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("7zip_installed.nbin");
  script_require_keys("installed_sw/7-Zip");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': '7-Zip', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'max_version': '26.02', 'fixed_display': 'See vendor advisory'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_NOTE);
vdf::handle_check_and_report_errors(vdf_result:result);