Security Updates for Microsoft Office Products (September 2018)

2018-09-12T00:00:00
ID SMB_NT_MS18_SEP_OFFICE.NASL
Type nessus
Reporter Tenable
Modified 2018-10-11T00:00:00

Description

The Microsoft Office Products are missing security updates. They are, therefore, affected by a vulnerability :

  • A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited this vulnerability 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-2018-8332)

                                        
                                            #
# (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(117458);
  script_version("1.3");
  script_cvs_date("Date: 2018/10/11 13:18:38");

  script_cve_id(
    "CVE-2018-8332"
  );

  script_name(english:"Security Updates for Microsoft Office Products (September 2018)");
  script_summary(english:"Checks for Microsoft security updates.");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office Products are affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office Products are missing security updates.
They are, therefore, affected by a vulnerability :

  - A remote code execution vulnerability exists when the
    Windows font library improperly handles specially crafted
    embedded fonts. An attacker who successfully exploited this
    vulnerability 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-2018-8332)");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8332
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9373baa3");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a security update to address this issue.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A: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_attribute(attribute:"cvss_score_source", value:"CVE-2018-8332");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/12");

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

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

  script_copyright(english:"This script is Copyright (C) 2018 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("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("misc_func.inc");
include("install_func.inc");

global_var vuln;

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS18-09";

get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);

vuln = FALSE;
port = kb_smb_transport();

office_vers = hotfix_check_office_version();

####################################################################
# Office 2016 Checks
####################################################################
if (office_vers["16.0"])
{
  office_sp = get_kb_item("SMB/Office/2016/SP");
  if (!isnull(office_sp) && office_sp == 0)
  {
    prod = "Microsoft Office 2016";

    common_path = hotfix_get_officecommonfilesdir(officever:"16.0");
    path = hotfix_append_path(
      path  : common_path,
      value : "Microsoft Shared\OFFICE16"
    );
    file = "mso.dll";
    if (
      hotfix_check_fversion(file:file, version:"16.0.8431.2309", channel:"Deferred", channel_product:"Office", path:path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:file, version:"16.0.9126.2282", channel:"Deferred", channel_version:"1803", channel_product:"Office", path:path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:file, version:"16.0.10730.20102", channel:"First Release for Deferred", channel_product:"Office", path:path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:file, version:"16.0.10730.20102", channel:"Current", channel_product:"Office", path:path, bulletin:bulletin, product:prod) == HCF_OLDER
    )
      vuln = TRUE;
  }
}

if (vuln)
{
  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');
}