Microsoft AutoUpdate for macOS < 4.80 Elevation of Privilege (September 2025)

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

include('compat.inc');

if (description)
{
  script_id(261810);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/09");

  script_cve_id("CVE-2025-55317");

  script_name(english:"Microsoft AutoUpdate for macOS < 4.80 Elevation of Privilege (September 2025)");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote macOS host is affected by an elevation of privilege vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Microsoft AutoUpdate installed on the remote macOS ost is prior to 4.80. It is, therefore, affected by
an elevation of privilege vulnerability:

  - Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized
    attacker to elevate privileges locally. (CVE-2025-55317)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-55317
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?48ed3a45");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Microsoft AutoUpdate verison 4.80 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-55317");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/09/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/09/09");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

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

  script_dependencies("microsoft_autoupdate_macos_installed.nbin");
  script_require_keys("installed_sw/Microsoft AutoUpdate", "Host/MacOSX/Version", "Host/local_checks_enabled");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Microsoft AutoUpdate', 'type': 'app'},
      'check_algorithm': 'default',
      'requires': [
        {'scope': 'target', 'match': {'os': 'macos'}}
      ],
      'constraints': [
        {'fixed_version': '4.80'}
      ]
    }
  ]
};

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