Security Updates for Microsoft Office (February 2021) (macOS)

##
# (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(147704);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/10");

  script_cve_id("CVE-2021-24067", "CVE-2021-24069");
  script_xref(name:"IAVA", value:"2021-A-0067-S");

  script_name(english:"Security Updates for Microsoft Office (February 2021) (macOS)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office product installed on the remote host is affected by multiple remote code execution vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office product installed on the remote host is missing security updates. It is, therefore, affected by
multiple remote code execution vulnerabilities in Excel.

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-office-for-mac
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?43ed1b90");
  # https://docs.microsoft.com/en-us/officeupdates/release-notes-office-for-mac#february-16-2021
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?20edf462");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Microsoft Office for Mac.");
  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-2021-24069");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/02/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/02/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  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:"MacOS X Local Security Checks");

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

  script_dependencies("macosx_office_installed.nbin");
  script_require_keys("Host/MacOSX/Version");
  script_require_ports("installed_sw/Microsoft Excel");

  exit(0);
}

include('vcf.inc');

os = get_kb_item_or_exit('Host/MacOSX/Version');
apps = make_list('Microsoft Excel');
report = '';

#2019
min_ver_19 = '16.17.0';
fix_ver_19 = '16.46';
fix_disp_19 = '16.46 (21021202)';

foreach app (apps)
{
  installs = get_installs(app_name:app);
  if (isnull(installs[1]))
    continue;

  foreach install (installs[1])
  {
    version = install['version'];

    if (ver_compare(ver:version, minver:min_ver_19, fix:fix_ver_19, strict:FALSE) < 0)
    {
      app_label = app + ' for Mac 2019';
      report +=
        '\n\n  Product           : ' + app_label +
        '\n  Installed version : ' + version +
        '\n  Fixed version     : ' + fix_disp_19;
    }
  }
}
if (empty(report))
  audit(AUDIT_HOST_NOT, 'affected');

if (os =~ "^Mac OS X 10\.([0-9]([^0-9]|$)|1[0-3])")
  report += '\n  Note              : Update will require Mac OS X 10.14.0 or later.\n';

security_report_v4(severity:SECURITY_WARNING, port:0, extra:report);