Vulnerabilities > CVE-2018-0812 - Out-of-bounds Write vulnerability in Microsoft Office, Office Compatibility Pack and Word

047910
CVSS 7.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
microsoft
CWE-787
nessus
NVD
Published: 2018-01-10
Updated: 2024-11-21

Summary

Equation Editor in Microsoft Office 2003, Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Word Memory Corruption Vulnerability".

Vulnerable Configurations

Part Description Count
Application
Microsoft
11

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_OFFICE_COMPATIBILITY.NASL
    descriptionThe Microsoft Office Compatibility Pack products installed on the remote host are missing security updates. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in Microsoft Office 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. (CVE-2018-0793, CVE-2018-0794, CVE-2018-0796, CVE-2018-0798, CVE-2018-0801, CVE-2018-0802, CVE-2018-0804, CVE-2018-0805, CVE-2018-0806, CVE-2018-0807, CVE-2018-0812) - An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. (CVE-2018-0797)
    last seen2020-06-01
    modified2020-06-02
    plugin id105695
    published2018-01-09
    reporterThis script is Copyright (C) 2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/105695
    titleSecurity Updates for Microsoft Office Compatibility SP3 (January 2018)
    code
    #
# (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(105695);
  script_version("1.9");
  script_cvs_date("Date: 2018/11/15 20:50:32");

  script_cve_id(
    "CVE-2018-0793",
    "CVE-2018-0794",
    "CVE-2018-0796",
    "CVE-2018-0797",
    "CVE-2018-0798",
    "CVE-2018-0801",
    "CVE-2018-0802",
    "CVE-2018-0804",
    "CVE-2018-0805",
    "CVE-2018-0806",
    "CVE-2018-0807",
    "CVE-2018-0812",
    "CVE-2018-0845",
    "CVE-2018-0848",
    "CVE-2018-0849",
    "CVE-2018-0862"
  );
  script_bugtraq_id(
    102347,
    102348,
    102370,
    102372,
    102373,
    102375,
    102406,
    102457,
    102459,
    102460,
    102461,
    102463
  );

  script_xref(name:"MSKB", value:"4011605");
  script_xref(name:"MSKB", value:"4011607");
  script_xref(name:"MSFT", value:"MS18-4011605");
  script_xref(name:"MSFT", value:"MS18-4011607");
  script_xref(name:"IAVA", value:"2018-A-0009");

  script_name(english:"Security Updates for Microsoft Office Compatibility SP3 (January 2018)");
  script_summary(english:"Checks for Microsoft security updates.");

  script_set_attribute(attribute:"synopsis", value:
   "The Microsoft Office Products are affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office Compatibility Pack products installed
on the remote host are missing security updates.
It is, therefore, affected by multiple vulnerabilities :

- A remote code execution vulnerability exists in
  Microsoft Office 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.
  (CVE-2018-0793, CVE-2018-0794, CVE-2018-0796, 
  CVE-2018-0798, CVE-2018-0801, CVE-2018-0802, 
  CVE-2018-0804, CVE-2018-0805, CVE-2018-0806, 
  CVE-2018-0807, CVE-2018-0812)

- An Office RTF remote code execution vulnerability 
  exists in Microsoft Office software when the Office 
  software fails to properly handle RTF files. An 
  attacker who successfully exploited the vulnerability 
  could run arbitrary code in the context of the current 
  user. (CVE-2018-0797)");

  # https://support.microsoft.com/en-us/help/4011605/descriptionofthesecurityupdateformicrosoftofficecompatibilitypackservi
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d320dbde");
  # https://support.microsoft.com/en-us/help/4011607/description-of-the-security-update-for-microsoft-office-compatibility
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7b248e04");
  script_set_attribute(attribute:"solution", value:
    "Microsoft has released the following security updates to address this issue:
    -KB4011605
    -KB4011607"
  );
  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:L/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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_compatibility_pack");
  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) 2018 Tenable Network Security, Inc.");

  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("misc_func.inc");
include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS18-01";
kbs = make_list(
  '4011605',
  '4011607'
);

vuln = FALSE;

if (get_kb_item("Host/patch_management_checks"))
  hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

######################################################################
 # Excel Compatibility pack
######################################################################
excel_compat_check = make_array(
    "12.0", make_array("version", "12.0.6784.5000", "kb", "4011605")
);

if (hotfix_check_office_product(product:"ExcelCnv",
                                display_name:"Office Compatibility Pack SP3",
                                checks:excel_compat_check,
                                bulletin:bulletin))
  vuln = TRUE;

####################################################################
#  Office Compatibility Pack
####################################################################
installs = get_kb_list("SMB/Office/WordCnv/*/ProductPath");
foreach install (keys(installs))
{
  path = installs[install];
  path = ereg_replace(pattern:'^(.+)\\\\[^\\\\]+\\.exe$', replace:"\1\", string:path, icase:TRUE);
  if(hotfix_check_fversion(path:path, file:"wordcnv.dll", version:"12.0.6784.5000", kb:"4011607", min_version:"12.0.0.0", product:"Microsoft Office Compatibility Pack") == HCF_OLDER)
  {
    vuln = TRUE;
    break;
  }
}

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');
}
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_OFFICE.NASL
    descriptionThe Microsoft Office Products are missing security updates. It is, therefore, affected by the following vulnerabilities : - A remote code execution vulnerability exists in Microsoft Office 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-2018-0794, CVE-2018-0795) - An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. 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-2018-0797) - A remote code execution vulnerability exists in Microsoft Office 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-2018-0798, CVE-2018-0801, CVE-2018-0802, CVE-2018-0804, CVE-2018-0805, CVE-2018-0806, CVE-2018-0807, CVE-2018-0812) - A remote code execution vulnerability exists in the way that Microsoft Outlook parses specially crafted email messages. An attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Exploitation of this vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Outlook. (CVE-2018-0793)
    last seen2020-06-01
    modified2020-06-02
    plugin id105728
    published2018-01-10
    reporterThis script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105728
    titleSecurity Updates for Microsoft Office Products (January 2018)
    code
    #
# (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(105728);
  script_version("1.9");
  script_cvs_date("Date: 2018/07/30 15:31:34");

  script_cve_id(
    "CVE-2018-0793",
    "CVE-2018-0794",
    "CVE-2018-0795",
    "CVE-2018-0797",
    "CVE-2018-0798",
    "CVE-2018-0801",
    "CVE-2018-0802",
    "CVE-2018-0804",
    "CVE-2018-0805",
    "CVE-2018-0806",
    "CVE-2018-0807",
    "CVE-2018-0812",
    "CVE-2018-0845",
    "CVE-2018-0848",
    "CVE-2018-0849",
    "CVE-2018-0862"
  );
  script_bugtraq_id(
    102347,
    102348,
    102356,
    102370,
    102373,
    102375,
    102406,
    102457,
    102459,
    102460,
    102461,
    102463
  );

  script_xref(name:"MSKB", value:"4011201");
  script_xref(name:"MSKB", value:"4011574");
  script_xref(name:"MSKB", value:"4011580");
  script_xref(name:"MSKB", value:"4011610");
  script_xref(name:"MSKB", value:"4011611");
  script_xref(name:"MSKB", value:"4011622");
  script_xref(name:"MSKB", value:"4011632");
  script_xref(name:"MSKB", value:"4011636");
  script_xref(name:"MSKB", value:"4011656");
  script_xref(name:"MSKB", value:"4011658");
  script_xref(name:"MSFT", value:"MS17-4011201");
  script_xref(name:"MSFT", value:"MS17-4011574");
  script_xref(name:"MSFT", value:"MS17-4011580");
  script_xref(name:"MSFT", value:"MS17-4011610");
  script_xref(name:"MSFT", value:"MS17-4011611");
  script_xref(name:"MSFT", value:"MS17-4011622");
  script_xref(name:"MSFT", value:"MS17-4011632");
  script_xref(name:"MSFT", value:"MS17-4011636");
  script_xref(name:"MSFT", value:"MS17-4011656");
  script_xref(name:"MSFT", value:"MS17-4011658");
  script_xref(name:"IAVA", value:"2018-A-0009");

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

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office Products are missing a security update.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office Products are missing security updates.
It is, therefore, affected by the following vulnerabilities :

  - A remote code execution vulnerability exists in
    Microsoft Office 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-2018-0794, CVE-2018-0795)

  - An Office RTF remote code execution vulnerability exists
    in Microsoft Office software when the Office software
    fails to properly handle RTF files. 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-2018-0797)

  - A remote code execution vulnerability exists in
    Microsoft Office 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-2018-0798, CVE-2018-0801,
    CVE-2018-0802, CVE-2018-0804, CVE-2018-0805,
    CVE-2018-0806, CVE-2018-0807, CVE-2018-0812)

  - A remote code execution vulnerability exists in the way
    that Microsoft Outlook parses specially crafted email
    messages. An attacker who successfully exploited the
    vulnerability could take control of an affected system.
    An attacker could then install programs; view, change,
    or delete data; or create new accounts with full user
    rights. Exploitation of this vulnerability requires that
    a user open a specially crafted file with an affected
    version of Microsoft Outlook.  (CVE-2018-0793)");
  # https://support.microsoft.com/en-ie/help/4011201/descriptionofthesecurityupdateforoffice2007january92018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e1b2b6d9");
  # https://support.microsoft.com/en-us/help/4011574/descriptionofthesecurityupdateforoffice2016january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?85b6869a");
  # https://support.microsoft.com/en-us/help/4011580/descriptionofthesecurityupdateforoffice2013january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7d51c8cf");
  # https://support.microsoft.com/en-us/help/4011610/descriptionofthesecurityupdateforoffice2010january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e7a15426");
  # https://support.microsoft.com/en-ie/help/4011611/descriptionofthesecurityupdateforoffice2010january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?00956959");
  # https://support.microsoft.com/en-ie/help/4011622/descriptionofthesecurityupdateforoffice2016january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?40ab628d");
  # https://support.microsoft.com/en-us/help/4011632/descriptionofthesecurityupdateforoffice2016january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7cb9348d");
  # https://support.microsoft.com/en-ie/help/4011636/descriptionofthesecurityupdateforoffice2013january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?479ec626");
  # https://support.microsoft.com/en-us/help/4011656/descriptionofthesecurityupdatefor2007microsoftofficesuitejanuary9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cf086d09");
  # https://support.microsoft.com/en-us/help/4011658/descriptionofthesecurityupdateforoffice2010january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2b10eed9");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
  -KB4011201
  -KB4011574
  -KB4011580
  -KB4011610
  -KB4011611
  -KB4011622
  -KB4011632
  -KB4011636
  -KB4011656
  -KB4011658");
  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:L/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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  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) 2018 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("misc_func.inc");
include("install_func.inc");

global_var vuln;

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS18-01";
kbs = make_list(
  '4011201', # Office 2007 SP3
  '4011574', # Office 2016
  '4011580', # Office 2013 SP1
  '4011610', # Office 2010 SP2
  '4011611', # Office 2010 SP2
  '4011622', # Office 2016
  '4011632', # Office 2016
  '4011636', # Office 2013 SP1
  '4011656', # Office 2007 SP3
  '4011658'  # Office 2010 SP2
);

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);

vuln = FALSE;
port = kb_smb_transport();

######################################################################
# Office 2007, 2010, 2013, 2016
# note that this batch of updates deletes eqnedt32.exe
######################################################################
function perform_office_checks()
{
  local_var office_vers, office_sp, common_path, path, prod, file, kb, c2r_file;
  office_vers = hotfix_check_office_version();

  ####################################################################
  # Office 2007 SP3 Checks
  ####################################################################
  if (office_vers["12.0"])
  {
    office_sp = get_kb_item("SMB/Office/2007/SP");
    if (!isnull(office_sp) && office_sp == 3)
    {
      prod = "Microsoft Office 2007 SP3";
      common_path = hotfix_get_officecommonfilesdir(officever:"12.0");

      path = hotfix_append_path(
        path  : common_path,
        value : "Microsoft Shared\Office12"
      );
      if (hotfix_check_fversion(file:"mso.dll", version:"12.0.6784.5000", path:path, kb:"4011201", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;

      path = hotfix_append_path(
        path  : common_path,
        value : "Microsoft Shared\Equation"
      );
# note that this update deletes eqnedt32.exe
      if (hotfix_check_fversion(file:"eqnedt32.exe", version:"2018.0.0.0", path:path, kb:"4011656", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;
    }
  }

  ####################################################################
  # Office 2010 SP2 Checks
  # wwlibcxm.dll only exists if KB2428677 is installed
  ####################################################################
  if (office_vers["14.0"])
  {
    office_sp = get_kb_item("SMB/Office/2010/SP");
    if (!isnull(office_sp) && office_sp == 2)
    {
      prod = "Microsoft Office 2010 SP2";

      path = hotfix_get_officeprogramfilesdir(officever:"14.0");
      if (hotfix_check_fversion(file:"wwlibcxm.dll", version:"14.0.7192.5000", path:path, kb:"4011658", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;

      common_path = hotfix_get_officecommonfilesdir(officever:"14.0");
      path = hotfix_append_path(
        path  : common_path,
        value : "Microsoft Shared\Office14"
      );
      if (hotfix_check_fversion(file:"mso.dll", version:"14.0.7192.5000", path:path, kb:"4011611", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;

      path = hotfix_append_path(
        path  : common_path,
        value : "Microsoft Shared\Equation"
      );
# note that this update deletes eqnedt32.exe
      if (hotfix_check_fversion(file:"eqnedt32.exe", version:"2018.0.0.0", path:path, kb:"4011610", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;
    }
  }

  ####################################################################
  # Office 2013 SP1 Checks
  ####################################################################
  if (office_vers["15.0"])
  {
    office_sp = get_kb_item("SMB/Office/2013/SP");
    if (!isnull(office_sp) && office_sp == 1)
    {
      prod = "Microsoft Office 2013 SP1";
      common_path = hotfix_get_officecommonfilesdir(officever:"15.0");

      path = hotfix_append_path(
        path  : common_path,
        value : "Microsoft Shared\Office15"
      );
      if (hotfix_check_fversion(file:"mso.dll", version:"15.0.4997.1000", path:path, kb:"4011636", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;

      path = hotfix_append_path(
        path  : common_path,
        value : "Microsoft Shared\Equation"
      );
# note that this update deletes eqnedt32.exe
      if (hotfix_check_fversion(file:"eqnedt32.exe", version:"2018.0.0.0", path:path, kb:"4011580", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;
    }
  }

  ####################################################################
  # 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";
      kb = "4011632";
      if (
        hotfix_check_fversion(file:file, version:"16.0.4639.1000", channel:"MSI", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"16.0.8201.2217", channel:"Deferred", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"16.0.8431.2153", channel:"Deferred", channel_version:"1708", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"16.0.8431.2153", channel:"First Release for Deferred", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"16.0.8730.2175", channel:"Current", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER
        )
        vuln = TRUE;

      file = "mso99lres.dll";
      c2r_file = "mso.dll";
      kb = "4011622";
      if (
        hotfix_check_fversion(file:file, version:"16.0.4519.1000", channel:"MSI", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:c2r_file, version:"16.0.8201.2217", channel:"Deferred", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:c2r_file, version:"16.0.8431.2153", channel:"Deferred", channel_version:"1708", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:c2r_file, version:"16.0.8431.2153", channel:"First Release for Deferred", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:c2r_file, version:"16.0.8730.2175", channel:"Current", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER
        )
        vuln = TRUE;

      path = hotfix_append_path(
        path  : common_path,
        value : "Microsoft Shared\EQUATION"
      );
      file = "eqnedt32.exe";
      kb = "4011574";
# note that this update deletes eqnedt32.exe
      if (
        hotfix_check_fversion(file:file, version:"2018.0.0.0", channel:"MSI", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"2018.0.0.0", channel:"Deferred", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"2018.0.0.0", channel:"Deferred", channel_version:"1708", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"2018.0.0.0", channel:"First Release for Deferred", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:file, version:"2018.0.0.0", channel:"Current", channel_product:"Office", path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER
        )
        vuln = TRUE;
    }
  }
}

######################################################################
# MAIN
######################################################################
perform_office_checks();

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');
}

References