CVSS2
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
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
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
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
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
Percentile
84.9%