Lucene search

K
nessusThis script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.SMB_NT_MS20_NOV_EXCEL_C2R.NASL
HistoryJun 10, 2022 - 12:00 a.m.

Security Updates for Microsoft Excel Products C2R (November 2020)

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
65
microsoft excel
c2r
security update
remote code execution
vulnerability

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

85.0%

The Microsoft Office Excel installation on the remote host is missing a security update. It is, therefore, affected by an unspecified remote code execution vulnerability. An attacker can exploit this vulnerability by tricking a user into opening a specially crafted Office file.

#
# (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(162018);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/25");

  script_cve_id(
    "CVE-2020-17064",
    "CVE-2020-17065",
    "CVE-2020-17066",
    "CVE-2020-17067"
  );
  script_xref(name:"CEA-ID", value:"CEA-2020-0135");

  script_name(english:"Security Updates for Microsoft Excel Products C2R (November 2020)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Excel Products are affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office Excel installation on the remote host is missing a security update. It is, therefore, affected by 
an unspecified remote code execution vulnerability. An attacker can exploit this vulnerability by tricking a user into
opening a specially crafted Office file.");
  # 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-2020-17066");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-17067");

  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:"2020/11/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/11/10");
  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_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 = 'MS20-11';

var constraints = [
    {'fixed_version':'16.0.12527.21330','channel': 'Microsoft 365 Apps on Windows 7'},
    {'fixed_version':'16.0.12527.21330','channel': 'Deferred','channel_version': '2002'},
    {'fixed_version':'16.0.11929.20974','channel': 'Deferred'},
    {'fixed_version':'16.0.13127.20760','channel': 'Enterprise Deferred'},
    {'fixed_version':'16.0.13231.20514','channel': 'Enterprise Deferred','channel_version': '2009'},
    {'fixed_version':'16.0.13127.20760','channel': 'First Release for Deferred'},
    {'fixed_version':'16.0.13328.20356','channel': '2016 Retail'},
    {'fixed_version':'16.0.13328.20356','channel': 'Current'},
    {'fixed_version':'16.0.13328.20356','channel': '2019 Retail','channel_version': '2010'},
    {'fixed_version':'16.0.13328.20356','channel': '2019 Retail','channel_version': '2004'},
    {'fixed_version':'16.0.13231.20514','channel': '2019 Retail','channel_version': '2009'},
    {'fixed_version':'16.0.13127.20760','channel': '2019 Retail','channel_version': '2008'},
    {'fixed_version':'16.0.12527.21330','channel': '2019 Retail','channel_version': '2002'},
    {'fixed_version':'16.0.11929.20974','channel': '2019 Retail','channel_version': '1908'},
    {'fixed_version':'16.0.10368.20035','channel': '2019 Volume'},
    {'fixed_version':'16.0.11929.20974','channel': '2019 Retail'}
];

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

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

85.0%