The Microsoft Excel Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :
##
# (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(141417);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");
script_cve_id("CVE-2020-16929", "CVE-2020-16931", "CVE-2020-16932");
script_xref(name:"MSKB", value:"4486695");
script_xref(name:"MSKB", value:"4486678");
script_xref(name:"MSKB", value:"4486707");
script_xref(name:"MSFT", value:"MS20-4486695");
script_xref(name:"MSFT", value:"MS20-4486678");
script_xref(name:"MSFT", value:"MS20-4486707");
script_xref(name:"IAVA", value:"2020-A-0462-S");
script_xref(name:"CEA-ID", value:"CEA-2020-0126");
script_name(english:"Security Updates for Microsoft Excel Products (October 2020)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Excel Products are affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Excel Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :
- A remote code execution vulnerability exists in
Microsoft Excel 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. (CVE-2020-16929, CVE-2020-16931,
CVE-2020-16932)");
# https://support.microsoft.com/en-us/help/4486695/security-update-for-excel-2013-october-13-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6a014873");
# https://support.microsoft.com/en-us/help/4486678/security-update-for-excel-2016-october-13-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f6bd1e4d");
# https://support.microsoft.com/en-us/help/4486707/security-update-for-excel-2010-october-13-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?de1058c5");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
-KB4486695
-KB4486678
-KB4486707
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:P/I:P/A:P");
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-2020-16932");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
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:excel");
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) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("office_installed.nasl", "microsoft_office_compatibility_pack_installed.nbin", "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(
'4486707',
'4486678',
'4486695'
);
if (get_kb_item('Host/patch_management_checks'))
hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_WARNING);
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', '4486707'),
'15.0', make_array('sp', 1, 'version', '15.0.5285.1000', 'kb', '4486695'),
'16.0', make_nested_list(make_array('sp', 0, 'version', '16.0.5071.1000', 'channel', 'MSI', 'kb', '4486678')
# 2019 & Windows 7 365 temp fix
)
);
if (hotfix_check_office_product(product:'Excel', checks:checks, bulletin:bulletin))
{
replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
hotfix_security_warning();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}