Microsoft Windows MPEG-2 Video Extension RCE (September 2021)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(153382);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/27");

  script_cve_id("CVE-2021-38644");
  script_xref(name:"IAVA", value:"2021-A-0431-S");
  script_xref(name:"IAVA", value:"2021-A-0429-S");

  script_name(english:"Microsoft Windows MPEG-2 Video Extension RCE (September 2021)");

  script_set_attribute(attribute:"synopsis", value:
"The Windows app installed on the remote host is affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Windows 'MPEG-2 Video Extension' app installed on the remote host is affected by a remote code execution
vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands.

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://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38644");
  script_set_attribute(attribute:"solution", value:
"Upgrade to app version 1.0.42152 or later via the Microsoft Store.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-38644");

  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:"2021/09/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/14");

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

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

  script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl", "wmi_enum_windows_app_store.nbin");
  script_require_keys("SMB/Registry/Enumerated", "WMI/Windows App Store/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}

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

var apps = ['Microsoft.MPEG2VideoExtension'];

var app_info = vcf::microsoft_appstore::get_app_info(app_list:apps);

vcf::check_granularity(app_info:app_info, sig_segments:3);

var constraints = [
    { 'fixed_version' : '1.0.42152.0' }
];

vcf::microsoft_appstore::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);