Security Updates for Windows Defender (July 2023)

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

include('compat.inc');

if (description)
{
  script_id(178243);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/17");

  script_cve_id("CVE-2023-33156");
  script_xref(name:"MSKB", value:"2267602");
  script_xref(name:"MSFT", value:"MS23-2267602");

  script_name(english:"Security Updates for Windows Defender (July 2023)");

  script_set_attribute(attribute:"synopsis", value:
"An antimalware application installed on the remote host is affected by an elevation of privilege vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Malware Protection Engine version of Microsoft Windows Defender installed on the remote Windows host is prior to
1.1.23050.3. It is, therefore, affected by an elevation of privilege vulnerability.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/manage-updates-baselines-microsoft-defender-antivirus?view=o365-worldwide
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3bed4ba6");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released KB2267602 to address this issue.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-33156");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/07/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/07/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/13");

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

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("microsoft_windows_defender_win_installed.nbin");
  script_require_keys("installed_sw/Windows Defender");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

var app = 'Windows Defender';

var app_info = vcf::get_app_info(app:app, win_local:TRUE);

# Check if disabled
if (!isnull(app_info['Disabled']))
  exit(0,'Windows Defender is disabled.');

# Check if we got the Malware Engine Version
if (isnull(app_info['Engine Version']))
  exit(0,'Unable to get the Malware Engine Version.');

var constraints = [
{'fixed_version':'1.1.23050.3'}
];

vcf::av_checks::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING, check:'Engine Version');