Security Updates for Microsoft Excel Products C2R (June 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(162043);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/25");

  script_cve_id("CVE-2021-31939");
  script_xref(name:"IAVA", value:"2021-A-0272-S");

  script_name(english:"Security Updates for Microsoft Excel Products C2R (June 2021)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Excel Products are affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Excel 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.");
  # https://docs.microsoft.com/en-us/officeupdates/update-history-microsoft365-apps-by-date
  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: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-2021-31939");

  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:"2021/06/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/08");
  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:excel");
  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) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("office_installed.nasl", "microsoft_office_compatibility_pack_installed.nbin", "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 = 'MS21-06';

var constraints = [
    {'fixed_version':'16.0.13127.21668','channel': 'Deferred','channel_version': '2008'},
    {'fixed_version':'16.0.12527.21952','channel': 'Microsoft 365 Apps on Windows 7'},
    {'fixed_version':'16.0.12527.21952','channel': 'Deferred'},
    {'fixed_version':'16.0.13901.20554','channel': 'Enterprise Deferred','channel_version': '2103'},
    {'fixed_version':'16.0.13929.20408','channel': 'Enterprise Deferred'},
    {'fixed_version':'16.0.13801.20738','channel': 'First Release for Deferred'},
    {'fixed_version':'16.0.14026.20270','channel': '2016 Retail'},
    {'fixed_version':'16.0.14026.20270','channel': 'Current'},
    {'fixed_version':'16.0.10375.20036','channel': '2019 Volume'},
    {'fixed_version':'16.0.14026.20270','channel': '2019 Retail'}
];

vcf::microsoft::office_product::check_version_and_report(
  constraints:constraints,
  severity:SECURITY_WARNING,
  bulletin:bulletin,
  subproduct:'Excel'
);