Security Updates for Microsoft Excel Products (July 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(126580);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/10");

  script_cve_id("CVE-2019-1110", "CVE-2019-1111");
  script_bugtraq_id(108967, 108974);
  script_xref(name:"MSKB", value:"4464565");
  script_xref(name:"MSKB", value:"4464572");
  script_xref(name:"MSKB", value:"4475513");
  script_xref(name:"MSFT", value:"MS19-4464565");
  script_xref(name:"MSFT", value:"MS19-4464572");
  script_xref(name:"MSFT", value:"MS19-4475513");

  script_name(english:"Security Updates for Microsoft Excel Products (July 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. They are, 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. 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. (CVE-2019-1110, CVE-2019-1111)");
  # https://support.microsoft.com/en-us/help/4464565/security-update-for-excel-2013-july-9-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?384b7c66");
  # https://support.microsoft.com/en-us/help/4464572/security-update-for-excel-2010-july-9-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e2f4986c");
  # https://support.microsoft.com/en-us/help/4475513/security-update-for-excel-2016-july-9-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f10a9953");
  # https://docs.microsoft.com/en-us/officeupdates/update-history-office365-proplus-by-date
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c6fc9b1b");
  # https://docs.microsoft.com/en-us/officeupdates/update-history-office-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?42ab6861");
  # https://support.office.com/en-us/article/install-office-updates-2ab296f3-7f03-43a2-8e50-46de917611c5
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7b126882");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4464565
  -KB4464572
  -KB4475513
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-2019-1111");

  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:"2019/07/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/09");

  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) 2019-2024 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 = "MS19-07";
kbs = make_list(
  4464565, # Excel 2013
  4464572, # Excel 2010
  4475513  # Excel 2016
);

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", "14.0.7235.5000", "kb", "4464572"),
  "15.0", make_array("sp", 1, "version", "15.0.5153.1000", "kb", "4464565"),
  "16.0", make_nested_list(make_array("sp", 0, "version", "16.0.4873.1000", "channel", "MSI", "kb", "4475513"))
);

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');
}