Microsoft Windows Codecs Library 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(153376);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/27");

  script_cve_id("CVE-2021-38661");

  script_name(english:"Microsoft Windows Codecs Library 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 'HEVC Video Extensions' or 'HEVC from Device Manufacturer' app
installed on the remote host is affected by a remote code execution
vulnerability. An attacker who successfully exploited the
vulnerability could execute arbitrary code.  Exploitation of the
vulnerability requires that a program process a specially crafted file.");
  script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38661");
  script_set_attribute(attribute:"solution", value:
"Upgrade to app version 1.0.42091.0, 1.0.42094.0, 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-2021-38661");

  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_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');

# Thanks to MS for two nearly identical package identity names:
#  Microsoft.HEVCVideoExtension  - HEVC Video Extensions from Device Manufacturer
#  Microsoft.HEVCVideoExtensions - HEVC Video Extensions
var apps = ['Microsoft.HEVCVideoExtension', 'Microsoft.HEVCVideoExtensions'];

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' : '1.0.42091.0', 'fixed_display' : '1.0.42091.0 / 1.0.42094.0'}
];

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