Security Updates for Microsoft Excel Products (October 2019)

#
# (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(129727);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/06/10");

  script_cve_id("CVE-2019-1327", "CVE-2019-1331");
  script_xref(name:"MSKB", value:"4484123");
  script_xref(name:"MSKB", value:"4484130");
  script_xref(name:"MSKB", value:"4484112");
  script_xref(name:"MSFT", value:"MS19-4484123");
  script_xref(name:"MSFT", value:"MS19-4484130");
  script_xref(name:"MSFT", value:"MS19-4484112");

  script_name(english:"Security Updates for Microsoft Excel Products (October 2019)");

  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-2019-1327, CVE-2019-1331)");
  # https://support.microsoft.com/en-us/help/4484123/security-update-for-excel-2013-october-8-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?db7369fe");
  # https://support.microsoft.com/en-us/help/4484130/security-update-for-excel-2010-october-8-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5aa1a31f");
  # https://support.microsoft.com/en-us/help/4484112/security-update-for-excel-2016-october-8-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f8d51dda");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4484123
  -KB4484130
  -KB4484112
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: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-2019-1331");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2019-2022 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('audit.inc');
include('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
include('smb_reg_query.inc');
include('install_func.inc');

global_var vuln;

get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');

bulletin = 'MS19-10';
kbs = make_list(
4484130,
4484123,
4484112
);

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', '14.0.7239.5000', 'kb', '4484130'),
  '15.0', make_array('sp', 1, 'version', '15.0.5179.1000', 'kb', '4484123'),
  '16.0', make_nested_list(make_array('sp', 0, 'version', '16.0.4912.1000', 'channel', 'MSI', 'kb', '4484112'))
);

if (hotfix_check_office_product(product:'Excel', 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');
}