CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
51.0%
The Microsoft Office Word 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(162058);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/01");
script_cve_id("CVE-2020-17020");
script_xref(name:"IAVA", value:"2020-A-0563-S");
script_name(english:"Security Updates for Microsoft Word Products C2R (November 2020)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Word Products are affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Office Word 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:L/AC:L/Au:N/C:P/I:N/A:N");
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:L/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-17020");
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:"2020/11/10");
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:word");
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) 2022-2024 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_NOTE,
bulletin:bulletin,
subproduct:'Word'
);
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
51.0%