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nessusThis script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.MACOS_MS20_DEC_OFFICE.NASL
HistoryJan 25, 2021 - 12:00 a.m.

Security Updates for Microsoft Office (December 2020) (macOS)

2021-01-2500:00:00
This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
15

6.9 Medium

AI Score

Confidence

High

The Microsoft Office product installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  • Microsoft Excel Remote Code Execution Vulnerability (CVE-2020-17123, CVE-2020-17128)

  • Microsoft Excel Information Disclosure Vulnerability (CVE-2020-17126)

  • Microsoft Outlook Information Disclosure Vulnerability (CVE-2020-17119)

  • Microsoft PowerPoint Remote Code Execution Vulnerability (CVE-2020-17124)

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(145269);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/26");

  script_cve_id(
    "CVE-2020-17119",
    "CVE-2020-17123",
    "CVE-2020-17124",
    "CVE-2020-17126",
    "CVE-2020-17128"
  );
  script_xref(name:"IAVA", value:"2020-A-0556-S");
  script_xref(name:"IAVA", value:"2020-A-0559-S");
  script_xref(name:"IAVA", value:"2021-A-0017-S");
  script_xref(name:"IAVA", value:"2020-A-0558-S");
  script_xref(name:"IAVA", value:"2020-A-0557-S");
  script_xref(name:"CEA-ID", value:"CEA-2020-0138");

  script_name(english:"Security Updates for Microsoft Office (December 2020) (macOS)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office product installed on the remote host is affected by multiple 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 vulnerabilities:

  - Microsoft Excel Remote Code Execution Vulnerability (CVE-2020-17123, CVE-2020-17128)

  - Microsoft Excel Information Disclosure Vulnerability (CVE-2020-17126)

  - Microsoft Outlook Information Disclosure Vulnerability (CVE-2020-17119)

  - Microsoft PowerPoint Remote Code Execution Vulnerability (CVE-2020-17124)

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#december-15-2020
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?97475468");
  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:C/I:C/A:C");
  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-2020-17128");

  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:"2020/12/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/12/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/25");

  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:"cpe", value:"cpe:/a:microsoft:outlook");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:powerpoint");
  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", "installed_sw/Microsoft Word", "Microsoft PowerPoint");

  exit(0);
}

include('vcf.inc');

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

#2019
min_ver_19 = '16.17.0';
fix_ver_19 = '16.44';
fix_disp_19 = '16.44 (20121301)';

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_HOLE, port:0, extra:report);

6.9 Medium

AI Score

Confidence

High