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nessusThis script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.SMB_NT_MS21_APR_WORD_C2R.NASL
HistoryJun 10, 2022 - 12:00 a.m.

Security Updates for Microsoft Word Products C2R (April 2021)

2022-06-1000:00:00
This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
26

The Microsoft Word Products are missing security updates. It is, therefore, 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.

#
# (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('compat.inc');

if (description)
{
  script_id(162061);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/14");

  script_cve_id("CVE-2021-28453");
  script_xref(name:"IAVA", value:"2021-A-0177-S");

  script_name(english:"Security Updates for Microsoft Word Products C2R (April 2021)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Word Products are affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Word Products are missing security updates. It is, therefore, 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:"http://www.nessus.org/u?fd4508ff");
  script_set_attribute(attribute:"solution", value:
"For Office 365, Office 2016 C2R, or Office 2019, ensure automatic
updates are enabled or open any office app and manually perform an
update.");
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-28453");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/04/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/06/10");

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

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

  script_copyright(english:"This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_dependencies("office_installed.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include('vcf_extras_office.inc');

var bulletin = 'MS21-04';

var constraints = [
    {'fixed_version':'16.0.13127.21506','channel': 'Deferred','channel_version': '2008'},
    {'fixed_version':'16.0.12527.21814','channel': 'Microsoft 365 Apps on Windows 7'},
    {'fixed_version':'16.0.12527.21814','channel': 'Deferred'},
    {'fixed_version':'16.0.13801.20506','channel': 'Enterprise Deferred','channel_version': '2102'},
    {'fixed_version':'16.0.13628.20664','channel': 'Enterprise Deferred'},
    {'fixed_version':'16.0.13801.20506','channel': 'First Release for Deferred'},
    {'fixed_version':'16.0.13901.20400','channel': '2016 Retail'},
    {'fixed_version':'16.0.13901.20400','channel': 'Current'},
    {'fixed_version':'16.0.10373.20050','channel': '2019 Volume'},
    {'fixed_version':'16.0.13901.20400','channel': '2019 Retail'}
];

vcf::microsoft::office_product::check_version_and_report(
  constraints:constraints,
  severity:SECURITY_WARNING,
  bulletin:bulletin,
  subproduct:'Word'
);
VendorProductVersion
microsoftword
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