9.3 High
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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.047 Low
EPSS
Percentile
92.7%
The Microsoft Office application installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by a remote code execution vulnerability due to Microsoft Excel improperly handling objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. To exploit the vulnerability, an attacker has to entice the logged on user to click a link or open a specially crafted file to gain control of the system with the privileges of the logged on user.
#
# (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(133650);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/13");
script_cve_id("CVE-2020-0759");
script_name(english:"Security Updates for Microsoft Office Products (February 2020) (macOS)");
script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote macOS or Mac OS X host is
affected by a remote code execution vulnerability");
script_set_attribute(attribute:"description", value:
"The Microsoft Office application installed on the remote macOS or Mac OS X host is missing a security update. It is,
therefore, affected by a remote code execution vulnerability due to Microsoft Excel improperly handling objects in
memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current
user. To exploit the vulnerability, an attacker has to entice the logged on user to click a link or open a specially
crafted file to gain control of the system with the privileges of the logged on user.");
# 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-2016-mac
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?dae26676");
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:N/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-2020-0759");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
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:word");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:powerpoint");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:outlook");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MacOS X Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020 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 Word", "installed_sw/Microsoft Excel", "installed_sw/Microsoft PowerPoint", "installed_sw/Microsoft OneNote", "installed_sw/Microsoft Outlook");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('install_func.inc');
os = get_kb_item_or_exit('Host/MacOSX/Version');
apps = make_list(
'Microsoft Word',
'Microsoft Excel',
'Microsoft PowerPoint',
'Microsoft Outlook'
);
report = '';
#2016
min_ver_16 = '16';
fix_ver_16 = '16.16.19';
fix_disp_16 = '16.16.19 (20021000)';
#2019
min_ver_19 = '16.17.0';
fix_ver_19 = '16.34';
fix_disp_19 = '16.34 (20020900)';
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;
}
else if (ver_compare(ver:version, minver:min_ver_16, fix:fix_ver_16, strict:FALSE) < 0)
{
app_label = app + ' for Mac 2016';
report +=
'\n\n Product : ' + app_label +
'\n Installed version : ' + version +
'\n Fixed version : ' + fix_disp_16;
}
}
}
if (empty(report))
audit(AUDIT_HOST_NOT, 'affected');
if (os =~ "^Mac OS X 10\.[0-9](\.|$)")
report += '\n Note : Update will require Mac OS X 10.10.0 or later.\n';
security_report_v4(severity:SECURITY_HOLE, port:0, extra:report);
9.3 High
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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.047 Low
EPSS
Percentile
92.7%