The Microsoft Outlook application installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :
A remote code execution vulnerability exists in Microsoft Outlook 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 System 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. (CVE-2020-16947)
A denial of service vulnerability exists in Microsoft Outlook software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could cause a remote denial of service against a system. Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Outlook server. The security update addresses the vulnerability by correcting how Microsoft Outlook handles objects in memory. (CVE-2020-16949)
##
# (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(141428);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/15");
script_cve_id("CVE-2020-16947", "CVE-2020-16949");
script_xref(name:"MSKB", value:"4484524");
script_xref(name:"MSKB", value:"4486663");
script_xref(name:"MSKB", value:"4486671");
script_xref(name:"MSFT", value:"MS20-4484524");
script_xref(name:"MSFT", value:"MS20-4486663");
script_xref(name:"MSFT", value:"MS20-4486671");
script_xref(name:"IAVA", value:"2020-A-0455-S");
script_xref(name:"CEA-ID", value:"CEA-2020-0126");
script_name(english:"Security Updates for Outlook (October 2020)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Outlook application installed on the remote host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Outlook application installed on the remote
host is missing security updates. It is, therefore, affected
by multiple vulnerabilities :
- A remote code execution vulnerability exists in
Microsoft Outlook 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 System 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. (CVE-2020-16947)
- A denial of service vulnerability exists in Microsoft
Outlook software when the software fails to properly
handle objects in memory. An attacker who successfully
exploited the vulnerability could cause a remote denial
of service against a system. Exploitation of the
vulnerability requires that a specially crafted email be
sent to a vulnerable Outlook server. The security update
addresses the vulnerability by correcting how Microsoft
Outlook handles objects in memory. (CVE-2020-16949)");
# https://support.microsoft.com/en-us/help/4484524/security-update-for-outlook-2013-october-13-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5dd4e480");
# https://support.microsoft.com/en-us/help/4486663/security-update-for-outlook-2010-october-13-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?37225f14");
# https://support.microsoft.com/en-us/help/4486671/security-update-for-outlook-2016-october-13-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5499b1ef");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
-KB4484524
-KB4486663
-KB4486671
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:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-16947");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/13");
script_set_attribute(attribute:"patch_publication_date", value:"2020/10/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:outlook");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2020-2024 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('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
include('smb_reg_query.inc');
include('install_func.inc');
get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
bulletin = 'MS20-10';
kbs = make_list(
'4484524',
'4486663',
'4486671'
);
if (get_kb_item('Host/patch_management_checks'))
hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
get_kb_item_or_exit('SMB/Registry/Enumerated', exit_code:1);
port = kb_smb_transport();
checks = make_array(
'14.0', make_array('sp', 2, 'version', '14.0.7261.5000', 'kb', '4486663'),
'15.0', make_array('sp', 1, 'version', '15.0.5285.1000', 'kb', '4484524'),
'16.0', make_nested_list(make_array('sp', 0, 'version', '16.0.5071.1000', 'channel', 'MSI', 'kb', '4486671'),
make_array('version', '16.0.12527.21236', 'channel', 'Deferred','channel_version', '2002'),
make_array('version', '16.0.11929.20966', 'channel', 'Deferred'),
make_array('version', '16.0.13029.20708', 'channel', 'Enterprise Deferred'),
make_array('version', '16.0.13127.20638', 'channel', 'Enterprise Deferred', 'channel_version', '2008'),
make_array('version', '16.0.13127.20638', 'channel', 'First Release for Deferred'),
make_array('version', '16.0.13231.20390', 'channel', 'Current'),
# 2019 & Windows 7 365 temp fix
make_array('version', '16.0.13231.20390', 'channel', '2019 Retail'),
make_array('version', '16.0.13231.20390', 'channel', '2019 Retail', 'channel_version', '2004'),
make_array('version', '16.0.12527.21236', 'channel', '2019 Retail', 'channel_version', '2002'),
make_array('version', '16.0.10367.20048', 'channel', '2019 Volume')
)
);
if (hotfix_check_office_product(product:'Outlook', checks:checks, bulletin:bulletin))
{
replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}