Vulnerabilities > CVE-2017-0194 - Information Exposure vulnerability in Microsoft Excel and Office Compatibility Pack

047910
CVSS 5.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
local
low complexity
microsoft
CWE-200
nessus
NVD
Published: 2017-04-12
Updated: 2017-07-11

Summary

Microsoft Excel 2007 SP3, Microsoft Excel 2010 SP2, and Office Compatibility Pack SP2 allow remote attackers to obtain sensitive information from process memory via a crafted Office document, aka "Microsoft Office Information Disclosure Vulnerability."

Vulnerable Configurations

Part Description Count
Application
Microsoft
3

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS17_APR_OFFICE.NASL
descriptionThe Microsoft Office application, Office Web Apps, or SharePoint Server installed on the remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - An arbitrary code execution vulnerability exists in Microsoft Outlook due to improper parsing of email messages. An unauthenticated, remote attacker can exploit this, via a specially crafted email message, to execute arbitrary code. (CVE-2017-0106) - An information disclosure vulnerability exists in Microsoft Office due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this, by convincing a user to open a specially crafted Excel file, to disclose the contents of memory. (CVE-2017-0194) - A cross-site scripting (XSS) vulnerability exists in Office Web Apps Server due to improper validation of input before returning it to users. An authenticated, remote attacker can exploit this, via a specially crafted request, to execute arbitrary script code in a user
last seen2020-06-01
modified2020-06-02
plugin id99314
published2017-04-12
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/99314
titleSecurity Update for Microsoft Office Products (April 2017) (Petya)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(99314);
  script_version("1.20");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id(
    "CVE-2017-0106",
    "CVE-2017-0194",
    "CVE-2017-0195",
    "CVE-2017-0197",
    "CVE-2017-0199",
    "CVE-2017-0204",
    "CVE-2017-0207",
    "CVE-2017-2605"
  );
  script_bugtraq_id(
    95961,
    97411,
    97413,
    97417,
    97436,
    97458,
    97463,
    97498
  );
  script_xref(name:"CERT", value:"921560");
  script_xref(name:"EDB-ID", value:"41894");
  script_xref(name:"EDB-ID", value:"41934");
  script_xref(name:"MSKB", value:"2589382");
  script_xref(name:"MSFT", value:"MS17-2589382");
  script_xref(name:"IAVA", value:"2017-A-0101");
  script_xref(name:"IAVA", value:"2017-A-0104");
  script_xref(name:"MSKB", value:"3101522");
  script_xref(name:"MSFT", value:"MS17-3101522");
  script_xref(name:"MSKB", value:"3118388");
  script_xref(name:"MSFT", value:"MS17-3118388");
  script_xref(name:"MSKB", value:"3127890");
  script_xref(name:"MSFT", value:"MS17-3127890");
  script_xref(name:"MSKB", value:"3127895");
  script_xref(name:"MSFT", value:"MS17-3127895");
  script_xref(name:"MSKB", value:"3141529");
  script_xref(name:"MSFT", value:"MS17-3141529");
  script_xref(name:"MSKB", value:"3141538");
  script_xref(name:"MSFT", value:"MS17-3141538");
  script_xref(name:"MSKB", value:"3172519");
  script_xref(name:"MSFT", value:"MS17-3172519");
  script_xref(name:"MSKB", value:"3178664");
  script_xref(name:"MSFT", value:"MS17-3178664");
  script_xref(name:"MSKB", value:"3178702");
  script_xref(name:"MSFT", value:"MS17-3178702");
  script_xref(name:"MSKB", value:"3178703");
  script_xref(name:"MSFT", value:"MS17-3178703");
  script_xref(name:"MSKB", value:"3178710");
  script_xref(name:"MSFT", value:"MS17-3178710");
  script_xref(name:"MSKB", value:"3178724");
  script_xref(name:"MSFT", value:"MS17-3178724");
  script_xref(name:"MSKB", value:"3178725");
  script_xref(name:"MSFT", value:"MS17-3178725");
  script_xref(name:"MSKB", value:"3191827");
  script_xref(name:"MSFT", value:"MS17-3191827");
  script_xref(name:"MSKB", value:"3191829");
  script_xref(name:"MSFT", value:"MS17-3191829");
  script_xref(name:"MSKB", value:"3191830");
  script_xref(name:"MSFT", value:"MS17-3191830");
  script_xref(name:"MSKB", value:"3191840");
  script_xref(name:"MSFT", value:"MS17-3191840");
  script_xref(name:"MSKB", value:"3191845");
  script_xref(name:"MSFT", value:"MS17-3191845");
  script_xref(name:"MSKB", value:"3191847");
  script_xref(name:"MSFT", value:"MS17-3191847");

  script_name(english:"Security Update for Microsoft Office Products (April 2017) (Petya)");
  script_summary(english:"Checks the file versions.");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote Windows host is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office application, Office Web Apps, or SharePoint
Server installed on the remote Windows host is missing a security
update. It is, therefore, affected by multiple vulnerabilities :

  - An arbitrary code execution vulnerability exists in
    Microsoft Outlook due to improper parsing of email
    messages. An unauthenticated, remote attacker can
    exploit this, via a specially crafted email message, to
    execute arbitrary code. (CVE-2017-0106)

  - An information disclosure vulnerability exists in
    Microsoft Office due to improper handling of objects in
    memory. An unauthenticated, remote attacker can exploit
    this, by convincing a user to open a specially crafted
    Excel file, to disclose the contents of memory.
    (CVE-2017-0194)

  - A cross-site scripting (XSS) vulnerability exists in
    Office Web Apps Server due to improper validation of
    input before returning it to users. An authenticated,
    remote attacker can exploit this, via a specially
    crafted request, to execute arbitrary script code in a
    user's browser session. (CVE-2017-0195)

  - An arbitrary code execution vulnerability exists in
    Microsoft Office due to improper validation of input
    before loading dynamic link library (DLL) files. An
    unauthenticated, remote attacker can exploit this, by
    convincing a user to open a specially crafted Office
    document, to execute arbitrary code. (CVE-2017-0197)

  - An arbitrary code execution vulnerability exists in
    Microsoft Office and Windows WordPad due to improper
    validation of user-supplied input. An unauthenticated,
    remote attacker can exploit this, by convincing a user
    to open a specially crafted file, to execute arbitrary
    code. Note that this vulnerability is being utilized to
    spread the Petya ransomware. (CVE-2017-0199)

  - A security feature bypass vulnerability exists in
    Microsoft Office due to improper parsing of file
    formats. An unauthenticated, remote attacker can exploit
    this, by convincing a user into opening a specially
    crafted file, to bypass security features.
    (CVE-2017-0204)

  - A spoofing vulnerability in Microsoft Outlook due to
    improper validation of input passed via HTML tags. An
    unauthenticated, remote attacker can exploit this, by
    sending an email with specific HTML tags, to display a
    malicious authentication prompt and gain access to a
    user's authentication information or login credentials.
    (CVE-2017-0207)

  - An unspecified flaw exists in Microsoft Office in the
    Encapsulated PostScript (EPS) filter that allows an
    attacker to have an unspecified impact. (CVE-2017-2605)");
  script_set_attribute(attribute:"see_also", value:"https://portal.msrc.microsoft.com/en-us/security-guidance/summary");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Microsoft Office 2007,
2010, 2013, and 2016; Microsoft Excel 2007 and 2010; Microsoft OneNote
2007 and 2010; Microsoft Outlook 2007, 2010, 2013, and 2016; Microsoft
Office Compatibility Pack; Excel Services on Microsoft SharePoint
Server 2010 and 2013; Microsoft Excel Web App 2010; Microsoft Office
Web Apps Server 2010 and 2013; and Office Online Server.");
  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:L/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:"cvss_score_source", value:"CVE-2017-0199");

  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:"metasploit_name", value:'Microsoft Office Word Malicious Hta Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/04/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:onenote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:outlook");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_compatibility_pack");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_web_apps");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_online_server");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint_server");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("office_installed.nasl", "onenote_installed.nbin", "microsoft_sharepoint_installed.nbin", "microsoft_owa_installed.nbin", "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 = "MS17-04";
kbs = make_list(
  '2589382', # OneNote 2010 SP2
  '3101522', # Excel Web App 2010 SP2
  '3118388', # Outlook 2010 SP2
  '3127890', # Outlook 2007 SP3
  '3127895', # Office Online Server
  '3141529', # Office 2007 SP3
  '3141538', # Office 2010 SP2
  '3172519', # Outlook 2013 SP1
  '3178664', # Outlook 2016
  '3178702', # Office 2016
  '3178703', # Office 2016
  '3178710', # Office 2013 SP1
  '3178724', # Excel Services on SharePoint Server 2013
  '3178725', # Office Web Apps Server 2013 SP1
  '3191827', # Excel 2007 SP3
  '3191829', # OneNote 2007 SP3
  '3191830', # Office Compatibility Pack SP2
  '3191840', # Excel Services on SharePoint Server 2010
  '3191845', # Office Web Apps 2010 SP2
  '3191847'  # Excel 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);

# Get path information for Windows.
windir = hotfix_get_systemroot();
if (isnull(windir)) exit(1, "Failed to determine the location of %windir%.");

registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
global_var office_online_server_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office16.WacServer\InstallLocation"
);
RegCloseKey(handle:hklm);
close_registry(close:FALSE);

vuln = FALSE;
xss  = FALSE;
port = kb_smb_transport();

######################################################################
# Office 2007, 2010, 2013, 2016
######################################################################
function perform_office_checks()
{
  local_var office_vers, office_sp, path, prod;
  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";
      path = hotfix_append_path(
        path  : hotfix_get_officecommonfilesdir(officever:"12.0"),
        value : "Microsoft Shared\Office12"
      );
      if (hotfix_check_fversion(file:"mso.dll", version:"12.0.6766.5000", path:path, kb:"3141529", bulletin:bulletin, product:prod) == HCF_OLDER)
        vuln = TRUE;
    }
  }

  ####################################################################
  # Office 2010 SP2 Checks
  ####################################################################
  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_append_path(
        path  : hotfix_get_officecommonfilesdir(officever:"14.0"),
        value : "Microsoft Shared\Office14"
      );
      if (hotfix_check_fversion(file:"mso.dll", version:"14.0.7180.5000", path:path, kb:"3141538", 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";
      path = hotfix_append_path(
        path  : hotfix_get_officecommonfilesdir(officever:"15.0"),
        value : "Microsoft Shared\Office15"
      );
      if (hotfix_check_fversion(file:"mso.dll", version:"15.0.4919.1000", path:path, kb:"3178710", 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";
      path = hotfix_append_path(
        path:hotfix_get_officecommonfilesdir(officever:"16.0"),
        value:"Microsoft Shared\Office16"
      );
      if (
        hotfix_check_fversion(file:"mso.dll", version:"16.0.4522.1002", channel:"MSI", channel_product:"Office", path:path, kb:"3178702", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso.dll", version:"16.0.6925.1057", channel:"Deferred", channel_product:"Office", path:path, kb:"3178702", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso.dll", version:"16.0.7329.1051", channel:"Deferred", channel_version:"1609", channel_product:"Office", path:path, kb:"3178702", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso.dll", version:"16.0.7726.1030", channel:"First Release for Deferred", channel_product:"Office", path:path, kb:"3178702", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso.dll", version:"16.0.7830.1021", channel:"Current", channel_product:"Office", path:path, kb:"3178702", bulletin:bulletin, product:prod) == HCF_OLDER
      )
        vuln = TRUE;

      if(
        hotfix_check_fversion(file:"mso30win32client.dll", version:"16.0.4522.1000", channel:"MSI", channel_product:"Office", path:path, kb:"3178703", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso30win32client.dll", version:"16.0.6925.1057", channel:"Deferred", channel_product:"Office", path:path, kb:"3178703", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso30win32client.dll", version:"16.0.7329.1051", channel:"Deferred", channel_version:"1609", channel_product:"Office", path:path, kb:"3178703", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso30win32client.dll", version:"16.0.7726.1030", channel:"First Release for Deferred", channel_product:"Office", path:path, kb:"3178703", bulletin:bulletin, product:prod) == HCF_OLDER ||
        hotfix_check_fversion(file:"mso30win32client.dll", version:"16.0.7830.1021", channel:"Current", channel_product:"Office", path:path, kb:"3178703", bulletin:bulletin, product:prod) == HCF_OLDER
      )
        vuln = TRUE;
    }
  }
}

######################################################################
# Excel 2007, 2010
######################################################################
function perform_excel_checks()
{
  local_var excel_checks;

  excel_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6766.5000", "kb", "3191827"),
    "14.0", make_array("sp", 2, "version", "14.0.7180.5000", "kb", "3191847")
  );
  if (hotfix_check_office_product(product:"Excel", checks:excel_checks, bulletin:bulletin))
    vuln = TRUE;
}

######################################################################
# Outlook 2007, 2010, 2013, 2016
######################################################################
function perform_outlook_checks()
{
  local_var outlook_checks, kb16;

  kb16 = "3178664";
  outlook_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6767.5000", "kb", "3127890"),
    "14.0", make_array("sp", 2, "version", "14.0.7180.5001", "kb", "3118388"),
    "15.0", make_array("sp", 1, "version", "15.0.4919.1001", "kb", "3172519"),
    "16.0", make_nested_list(
      make_array("sp", 0, "version", "16.0.4522.1001", "channel", "MSI", "kb", kb16),
      make_array("sp", 0, "version", "16.0.6965.2145", "channel", "Deferred", "kb", kb16),
      make_array("sp", 0, "version", "16.0.7369.2127", "channel", "Deferred", "channel_version", "1609", "kb", kb16),
      make_array("sp", 0, "version", "16.0.7766.2076", "channel", "First Release for Deferred", "kb", kb16),
      make_array("sp", 0, "version", "16.0.7870.2038", "channel", "Current", "kb", kb16)
    )
  );
  if (hotfix_check_office_product(product:"Outlook", checks:outlook_checks, bulletin:bulletin))
    vuln = TRUE;
}

######################################################################
# OneNote 2007, 2010
######################################################################
function perform_onenote_checks()
{
  var install, installs, prod, path;

  installs = get_installs(app_name:'Microsoft OneNote');
  if(!empty_or_null(installs))
  {
    foreach install (installs[1])
    {
      ################################################################
      # OneNote 2007 SP3 Checks
      ################################################################
      if (install["product"] == "2007" && install["sp"] == 3)
      {
        prod = "Microsoft OneNote 2007 SP3";
        path = tolower(install["path"]);
        path -= "onenote.exe";
        if (hotfix_check_fversion(file:"onenotesyncpc.dll", version:"12.0.6765.5000", path:path, kb:"3191829", bulletin:bulletin, product:prod) == HCF_OLDER)
          vuln = TRUE;
      }

      ################################################################
      # OneNote 2010 SP2 Checks
      ################################################################
      else if (install["product"] == "2010" && install["sp"] == 2)
      {
        prod = "Microsoft OneNote 2010 SP2";
        path = tolower(install["path"]);
        path -= "onenote.exe";
        if (hotfix_check_fversion(file:"onenotesyncpc.dll", version:"14.0.7180.5000", path:path, kb:"2589382", bulletin:bulletin, product:prod) == HCF_OLDER)
          vuln = TRUE;
      }
    }
  }
}


######################################################################
# Compatibility Pack
######################################################################
function perform_comppack_checks()
{
  local_var excel_compat_checks;

  ####################################################################
  # Excel Compatibility Pack
  ####################################################################
  excel_compat_checks = make_array(
    "12.0", make_array("version", "12.0.6766.5000", "kb", "3191830")
  );
  if (hotfix_check_office_product(product:"ExcelCnv", display_name:"Office Compatibility Pack SP3", checks:excel_compat_checks, bulletin:bulletin))
    vuln = TRUE;
}

######################################################################
# Office Web Apps 2010, 2013
######################################################################
function perform_owa_checks()
{
  local_var owa_installs, owa_install;
  local_var owa_2010_path, owa_2010_sp;
  local_var owa_2013_path, owa_2013_sp;
  local_var path;

  # Get installs of Office Web Apps
  owa_installs = get_installs(app_name:"Microsoft Office Web Apps");
  if (!empty_or_null(owa_installs))
  {
    foreach owa_install (owa_installs[1])
    {
      if (owa_install["Product"] == "2010")
      {
        owa_2010_path = owa_install["path"];
        owa_2010_sp = owa_install["SP"];
      }
      else if (owa_install["Product"] == "2013")
      {
        owa_2013_path = owa_install["path"];
        owa_2013_sp = owa_install["SP"];
      }
    }
  }

  ####################################################################
  # Office Web Apps 2010 SP2
  ####################################################################
  if (owa_2010_path && (!isnull(owa_2010_sp) && owa_2010_sp == "2"))
  {
    path = hotfix_append_path(path:owa_2010_path, value:"14.0\WebServices\ConversionService\Bin\Converter");
    if (hotfix_check_fversion(file:"sword.dll", version:"14.0.7180.5000", min_version:"14.0.7015.1000", path:path, kb:"3191845", bulletin:bulletin, product:"Office Web Apps 2010") == HCF_OLDER)
    {
      vuln = TRUE;
      xss  = TRUE;
    }

    # Excel Web App
    path = hotfix_append_path(path:owa_2010_path, value:"14.0\Bin");
    if (hotfix_check_fversion(file:"xlsrv.dll", version:"14.0.7180.5000", path:path, kb:"3101522", bulletin:bulletin, product:"Excel Web App 2010") == HCF_OLDER)
    {
      vuln = TRUE;
      xss  = TRUE;
    }
  }

  ####################################################################
  # Office Web Apps 2013 SP1
  ####################################################################
  if (owa_2013_path && (!isnull(owa_2013_sp) && owa_2013_sp == "1"))
  {
    path = hotfix_append_path(path:owa_2013_path, value:"WordConversionService\bin\Converter");
    if (hotfix_check_fversion(file:"sword.dll", version:"15.0.4919.1000", min_version:"15.0.4571.1500", path:path, kb:"3178725", bulletin:bulletin, product:"Office Web Apps 2013") == HCF_OLDER)
    {
      vuln = TRUE;
      xss  = TRUE;
    }
  }
}

######################################################################
# Office Online Server
######################################################################
function perform_oos_checks()
{
  var path;

  if(office_online_server_path)
  {
    path = hotfix_append_path(path:office_online_server_path, value:"UlsController");
    if (hotfix_check_fversion(file:"uls.dll", version:"16.0.7329.1048", min_version:"16.0.6000.0", path:path, kb:"3127895", bulletin:bulletin, product:"Office Online Server") == HCF_OLDER)
    {
      vuln = TRUE;
      xss  = TRUE;
    }
  }
}

######################################################################
# SharePoint
######################################################################
function perform_sharepoint_checks()
{
  local_var sps_2010_path, sps_2010_sp, sps_2010_edition;
  local_var sps_2013_path, sps_2013_sp, sps_2013_edition;
  local_var installs, install, path;

  installs = get_installs(app_name:"Microsoft SharePoint Server");

  foreach install (installs[1])
  {
    if (install["Product"] == "2013")
    {
      sps_2013_path = install['path'];
      sps_2013_sp = install['SP'];
      sps_2013_edition = install['Edition'];
    }
    else if (install["Product"] == "2010")
    {
      sps_2010_path = install['path'];
      sps_2010_sp = install['SP'];
      sps_2010_edition = install['Edition'];
    }
  }

  ######################################################################
  # SharePoint Server 2013 SP1 - Excel Services
  ######################################################################
  if (sps_2013_path && sps_2013_sp == "1" && sps_2013_edition == "Server")
  {
    path = hotfix_append_path(path:sps_2013_path, value:"Bin");
    if (hotfix_check_fversion(file:"xlsrv.dll", version:"15.0.4919.1000", min_version:"15.0.0.0", path:path, kb:"3178724", bulletin:bulletin, product:"Office SharePoint Server 2013 Excel Services") == HCF_OLDER)
    {
      vuln = TRUE;
      xss  = TRUE;
    }
  }

  ######################################################################
  # SharePoint Server 2010 SP2 - Word Automation Services / Excel Services
  ######################################################################
  if (sps_2010_path && sps_2010_sp == "2" && sps_2010_edition == "Server")
  {
    path = hotfix_append_path(path:sps_2010_path, value:"Bin");
    if (hotfix_check_fversion(file:"xlsrv.dll", version:"14.0.7180.5000", path:path, kb:"3191840", bulletin:bulletin, product:"Office SharePoint Server 2010 Excel Services") == HCF_OLDER)
    {
      vuln = TRUE;
      xss  = TRUE;
    }
  }
}

perform_office_checks();
perform_excel_checks();
perform_outlook_checks();
perform_onenote_checks();
perform_comppack_checks();
perform_owa_checks();
perform_oos_checks();
perform_sharepoint_checks();

if (vuln)
{
  # CVE-2017-0195
  if(xss) replace_kb_item(name:'www/'+port+'/XSS', value:TRUE);

  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