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
97.3%
The Microsoft Office application installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by the following vulnerabilities:
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website.
Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file. Note that the Preview Pane is not an attack vector for this vulnerability. The security update addresses the vulnerability by correcting how Office handles objects in memory.
(CVE-2017-8567)
A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user. Exploitation of this vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince the user to open the specially crafted file. The security update addresses the vulnerability by correcting how Microsoft Office handles files in memory.
(CVE-2017-8631, CVE-2017-8632)
An information disclosure vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory, allowing an attacker to retrieve information from a targeted system. By itself, the information disclosure does not allow arbitrary code execution; however, it could allow arbitrary code to be run if the attacker uses it in combination with another vulnerability. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. Note that where the severity is indicated as Critical in the Affected Products table, the Preview Pane is an attack vector for this vulnerability. The security update addresses the vulnerability by correcting how GDI handles memory addresses. (CVE-2017-8676)
#
# (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(103126);
script_version("1.7");
script_cvs_date("Date: 2019/11/12");
script_cve_id(
"CVE-2017-8567",
"CVE-2017-8631",
"CVE-2017-8632",
"CVE-2017-8676"
);
script_bugtraq_id(
100719,
100734,
100751,
100755
);
script_xref(name:"MSKB", value:"3212225");
script_xref(name:"MSFT", value:"MS17-3212225");
script_xref(name:"IAVA", value:"2017-A-0274");
script_name(english:"Security Update for Microsoft Office (September 2017) (macOS)");
script_summary(english:"Checks the version of Microsoft Office.");
script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote macOS or Mac OS X host is
affected by multiple vulnerabilities.");
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
the following vulnerabilities:
- A remote code execution vulnerability exists in
Microsoft Office software when the software fails to
properly handle objects in memory. An attacker who
successfully exploited the vulnerability could run
arbitrary code in the context of the current user. If
the current user is logged on with administrative user
rights, an attacker could take control of the affected
system. An attacker could then install programs; view,
change, or delete data; or create new accounts with full
user rights. Users whose accounts are configured to have
fewer user rights on the system could be less impacted
than users who operate with administrative user rights.
Exploitation of the vulnerability requires that a user
open a specially crafted file with an affected version
of Microsoft Office software. In an email attack
scenario, an attacker could exploit the vulnerability by
sending the specially crafted file to the user and
convincing the user to open the file. In a web-based
attack scenario, an attacker could host a website (or
leverage a compromised website that accepts or hosts
user-provided content) that contains a specially crafted
file designed to exploit the vulnerability. An attacker
would have no way to force users to visit the website.
Instead, an attacker would have to convince users to
click a link, typically by way of an enticement in an
email or instant message, and then convince them to open
the specially crafted file. Note that the Preview Pane
is not an attack vector for this vulnerability. The
security update addresses the vulnerability by
correcting how Office handles objects in memory.
(CVE-2017-8567)
- A remote code execution vulnerability exists in
Microsoft Office software when it fails to properly
handle objects in memory. An attacker who successfully
exploited the vulnerability could use a specially
crafted file to perform actions in the security context
of the current user. For example, the file could then
take actions on behalf of the logged-on user with the
same permissions as the current user. Exploitation of
this vulnerability requires that a user open a specially
crafted file with an affected version of Microsoft
Office software. In an email attack scenario, an
attacker could exploit the vulnerability by sending the
specially crafted file to the user and convincing the
user to open the file. In a web-based attack scenario,
an attacker could host a website (or leverage a
compromised website that accepts or hosts user-provided
content) that contains a specially crafted file that is
designed to exploit the vulnerability. However, an
attacker would have no way to force the user to visit
the website. Instead, an attacker would have to convince
the user to click a link, typically by way of an
enticement in an email or Instant Messenger message, and
then convince the user to open the specially crafted
file. The security update addresses the vulnerability by
correcting how Microsoft Office handles files in memory.
(CVE-2017-8631, CVE-2017-8632)
- An information disclosure vulnerability exists in the
way that the Windows Graphics Device Interface (GDI)
handles objects in memory, allowing an attacker to
retrieve information from a targeted system. By itself,
the information disclosure does not allow arbitrary code
execution; however, it could allow arbitrary code to be
run if the attacker uses it in combination with another
vulnerability. To exploit this vulnerability, an
attacker would have to log on to an affected system and
run a specially crafted application. Note that where the
severity is indicated as Critical in the Affected
Products table, the Preview Pane is an attack vector for
this vulnerability. The security update addresses the
vulnerability by correcting how GDI handles memory
addresses. (CVE-2017-8676)");
# https://support.microsoft.com/en-us/help/3212225/description-of-the-security-update-for-office-for-mac-2011-14-7-7
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b6eeb83f");
# https://support.office.com/en-us/article/Release-notes-for-Office-2016-for-Mac-ed2da564-6d53-4542-9954-7e3209681a41
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?68489292");
# https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8631
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b333387a");
# https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8632
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?52db4138");
# https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8676
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c9e41e2a");
script_set_attribute(attribute:"solution", value:
"Microsoft has released a set patches for Microsoft Office for Mac 2011
and Microsoft Office 2016 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:L/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-2017-8632");
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:"2017/09/12");
script_set_attribute(attribute:"patch_publication_date", value:"2017/09/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/12");
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:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MacOS X Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2017-2019 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/Office for Mac 2011", "installed_sw/Microsoft Outlook", "installed_sw/Microsoft Excel", "installed_sw/Microsoft Word", "installed_sw/Microsoft PowerPoint", "installed_sw/Microsoft OneNote");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("install_func.inc");
os = get_kb_item("Host/MacOSX/Version");
if (!os) audit(AUDIT_OS_NOT, "Mac OS X");
# Office 2011
apps = make_list(
"Office for Mac 2011",
"Microsoft Outlook",
"Microsoft Excel",
"Microsoft Word",
"Microsoft PowerPoint",
"Microsoft OneNote"
);
report = "";
foreach app (apps)
{
installs = get_installs(app_name:app);
if (isnull(installs[1])) continue;
foreach install (installs[1])
{
version = install['version'];
app_label = app;
fix = NULL;
fix_disp = NULL;
if (version =~ "^14\.")
{
if (app !~ " for Mac 2011$") app_label += " for Mac 2011";
fix = '14.7.7';
}
else
{
if (version =~ "^15\.") app_label += " for Mac 2016";
fix = '15.38.0';
fix_disp = '15.38 (17090200)';
}
if (fix && ver_compare(ver:version, fix:fix, strict:FALSE) < 0)
{
report +=
'\n Product : ' + app_label +
'\n Installed version : ' + version;
if (!empty_or_null(fix_disp))
{
report += '\n Fixed version : ' + fix_disp;
fix_disp = '';
}
else report += '\n Fixed version : ' + fix;
if (os =~ "^Mac OS X 10\.[0-9](\.|$)" && app_label =~ " for Mac 2016$")
report += '\n Note : Update will require Mac OS X 10.10.0 or later.\n';
else report += '\n';
}
}
}
# Report findings.
if (!empty(report))
security_report_v4(severity:SECURITY_HOLE, port:0, extra:report);
else
audit(AUDIT_HOST_NOT, "affected");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8567
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8631
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8632
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8676
www.nessus.org/u?52db4138
www.nessus.org/u?68489292
www.nessus.org/u?b333387a
www.nessus.org/u?b6eeb83f
www.nessus.org/u?c9e41e2a
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
97.3%