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nessusThis script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.SMB_NT_MS21_JAN_OFFICE_C2R.NASL
HistoryJun 10, 2022 - 12:00 a.m.

Security Updates for Microsoft Office Products C2R (January 2021)

2022-06-1000:00:00
This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
37
microsoft office
security updates
january 2021

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.011

Percentile

84.9%

The Microsoft office Product is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  • Microsoft Office Remote Code Execution Vulnerability (CVE-2021-1711)

  • Microsoft Excel Remote Code Execution Vulnerability (CVE-2021-1714)

  • Microsoft Word Remote Code Execution Vulnerability (CVE-2021-1715, CVE-2021-1716)

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(162047);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id(
    "CVE-2021-1711",
    "CVE-2021-1714",
    "CVE-2021-1715",
    "CVE-2021-1716"
  );
  script_xref(name:"IAVA", value:"2021-A-0016-S");
  script_xref(name:"IAVA", value:"2021-A-0017-S");
  script_xref(name:"IAVA", value:"2021-A-0024-S");
  script_xref(name:"CEA-ID", value:"CEA-2021-0001");

  script_name(english:"Security Updates for Microsoft Office Products C2R (January 2021)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office Products are affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft office Product is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Microsoft Office Remote Code Execution Vulnerability (CVE-2021-1711)

  - Microsoft Excel Remote Code Execution Vulnerability (CVE-2021-1714)

  - Microsoft Word Remote Code Execution Vulnerability (CVE-2021-1715, CVE-2021-1716)

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:C/I:C/A:C");
  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-2021-1716");

  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:"2021/01/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/01/12");
  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:office");
  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", "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 = 'MS21-01';

var app_info = vcf::microsoft::office::get_app_info(app:'Microsoft Office');

var constraints = [
  
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.12527.21504','channel': 'Microsoft 365 Apps on Windows 7'},
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.12527.21504','channel': 'Deferred','channel_version': '2002'},
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.11929.20994','channel': 'Deferred'},
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13426.20526','channel': 'Enterprise Deferred','channel_version': '2011'},
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13328.20550','channel': 'Enterprise Deferred'},
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13127.21064','channel': 'First Release for Deferred'},
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13530.20376','channel': '2016 Retail'},
    {'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13530.20376','channel': 'Current'},
    {'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.13530.20376','channel': '2019 Retail'},
    {'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.10370.20052','channel': '2019 Volume'}
];

vcf::microsoft::office::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_HOLE,
  bulletin:bulletin,
  subproduct:'Office'
);

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.011

Percentile

84.9%