Vulnerabilities > CVE-2016-3235 - Permissions, Privileges, and Access Controls vulnerability in Microsoft Visio and Visio Viewer

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
microsoft
CWE-264
critical
nessus
exploit available
metasploit

Summary

Microsoft Visio 2007 SP3, Visio 2010 SP2, Visio 2013 SP1, Visio 2016, Visio Viewer 2007 SP3, and Visio Viewer 2010 mishandle library loading, which allows local users to gain privileges via a crafted application, aka "Microsoft Office OLE DLL Side Loading Vulnerability."

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Exploit-Db

descriptionMicrosoft Office - OLE Multiple DLL Side Loading Vulnerabilities (MS15-132/MS16-014/MS16-025/MS16-041/MS16-070) (Metasploit). CVE-2015-6128,CVE-2015-6132,CVE...
idEDB-ID:41706
last seen2017-03-23
modified2015-12-08
published2015-12-08
reporterExploit-DB
sourcehttps://www.exploit-db.com/download/41706/
titleMicrosoft Office - OLE Multiple DLL Side Loading Vulnerabilities (MS15-132/MS16-014/MS16-025/MS16-041/MS16-070) (Metasploit)

Metasploit

descriptionMultiple DLL side loading vulnerabilities were found in various COM components. These issues can be exploited by loading various these components as an embedded OLE object. When instantiating a vulnerable object Windows will try to load one or more DLLs from the current working directory. If an attacker convinces the victim to open a specially crafted (Office) document from a directory also containing the attacker's DLL file, it is possible to execute arbitrary code with the privileges of the target user. This can potentially result in the attacker taking complete control of the affected system.
idMSF:EXPLOIT/WINDOWS/FILEFORMAT/OFFICE_OLE_MULTIPLE_DLL_HIJACK
last seen2020-06-09
modified2017-07-24
published2016-08-09
references
reporterRapid7
sourcehttps://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/windows/fileformat/office_ole_multiple_dll_hijack.rb
titleOffice OLE Multiple DLL Side Loading Vulnerabilities

Msbulletin

bulletin_idMS16-070
bulletin_url
date2016-06-14T00:00:00
impactRemote Code Execution
knowledgebase_id3163610
knowledgebase_url
severityCritical
titleSecurity Update for Microsoft Office

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS16-070.NASL
descriptionThe remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities in Microsoft Office : - Multiple remote code execution vulnerabilities exist due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit these by convincing a user to open a specially crafted file or visit a website that hosts such a file, resulting in the execution of arbitrary code in the context of the user. (CVE-2016-0025, CVE-2016-3233) - A flaw exists due to improper disclosure of memory contents. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted file, resulting in the disclosure of potentially sensitive information. (CVE-2016-3234) - A flaw exists due to improper validation of input before loading OLE library files. A local attacker can exploit this, via a specially crafted application, to execute arbitrary code. (CVE-2016-3235)
last seen2020-06-01
modified2020-06-02
plugin id91611
published2016-06-15
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/91611
titleMS16-070: Security Update for Microsoft Office (3163610)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(91611);
  script_version("1.13");
  script_cvs_date("Date: 2019/11/19");

  script_cve_id(
    "CVE-2016-0025",
    "CVE-2016-3233",
    "CVE-2016-3234",
    "CVE-2016-3235"
  );
  script_bugtraq_id(
    91089,
    91091,
    91095,
    91096
  );
  script_xref(name:"MSFT", value:"MS16-070");
  script_xref(name:"MSKB", value:"2596915");
  script_xref(name:"MSKB", value:"2999465");
  script_xref(name:"MSKB", value:"3114740");
  script_xref(name:"MSKB", value:"3114872");
  script_xref(name:"MSKB", value:"3115014");
  script_xref(name:"MSKB", value:"3115020");
  script_xref(name:"MSKB", value:"3115041");
  script_xref(name:"MSKB", value:"3115107");
  script_xref(name:"MSKB", value:"3115111");
  script_xref(name:"MSKB", value:"3115130");
  script_xref(name:"MSKB", value:"3115134");
  script_xref(name:"MSKB", value:"3115144");
  script_xref(name:"MSKB", value:"3115170");
  script_xref(name:"MSKB", value:"3115173");
  script_xref(name:"MSKB", value:"3115182");
  script_xref(name:"MSKB", value:"3115187");
  script_xref(name:"MSKB", value:"3115194");
  script_xref(name:"MSKB", value:"3115195");
  script_xref(name:"MSKB", value:"3115196");
  script_xref(name:"MSKB", value:"3115198");
  script_xref(name:"MSKB", value:"3115243");
  script_xref(name:"MSKB", value:"3115244");
  script_xref(name:"IAVA", value:"2016-A-0148");

  script_name(english:"MS16-070: Security Update for Microsoft Office (3163610)");
  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 remote Windows host is missing a security update. It is,
therefore, affected by multiple vulnerabilities in Microsoft Office :

  - Multiple remote code execution vulnerabilities exist due
    to improper handling of objects in memory.  An
    unauthenticated, remote attacker can exploit these by
    convincing a user to open a specially crafted file or
    visit a website that hosts such a file, resulting in the
    execution of arbitrary code in the context of the user.
    (CVE-2016-0025, CVE-2016-3233)

  - A flaw exists due to improper disclosure of memory
    contents. An unauthenticated, remote attacker can
    exploit this by convincing a user to open a specially
    crafted file, resulting in the disclosure of potentially
    sensitive information. (CVE-2016-3234)

  - A flaw exists due to improper validation of input
    before loading OLE library files. A local attacker can
    exploit this, via a specially crafted application, to
    execute arbitrary code. (CVE-2016-3235)");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2016/ms16-070");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Microsoft Office 2007,
2010, 2013, 2013 RT, and 2016; Microsoft Word 2007, 2010, 2013, 2013
RT, and 2016; Microsoft Excel 2007 and 2010; Microsoft Visio 2007,
2010, 2013, and 2016; Visio Viewer 2007 and 2010; Word Viewer;
Microsoft Office Compatibility Pack; Office Web Apps 2010 and 2013;
Microsoft SharePoint 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:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-3235");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Office OLE Multiple DLL Side Loading Vulnerabilities');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/06/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/15");

  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:word");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:visio");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:visio_viewer");
  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: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) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("office_installed.nasl", "microsoft_owa_installed.nbin", "microsoft_sharepoint_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 bulletin, vuln;

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS16-070';
kbs = make_list(
  '2596915', # Visio 2007 SP3 Viewer
  '2999465', # Visio 2010 Viewer
  '3114740', # Visio 2007 SP3 
  '3114872', # Visio 2010 SP2
  '3115014', # Word Automation Services on SharePoint Server 2013
  '3115020', # Visio 2013 SP1
  '3115041', # Visio 2016 
  '3115107', # Excel 2007 SP3
  '3115111', # Office Compatibility Pack SP3
  '3115130', # Excel 2007 SP2
  '3115134', # Office Online Server
  '3115144', # Office 2016
  '3115170', # Office Web Apps 2013
  '3115173', # Word 2013 SP1
  '3115182', # Word 2016
  '3115187', # Word Viewer
  '3115194', # Microsoft Office Compatibility SP3
  '3115195', # Word 2007 SP3
  '3115196', # Word Automation Services on SharePoint Server 2010
  '3115198', # Office 2010 SP2
  '3115243', # Word 2010 SP2
  '3115244'  # Office Web Apps 2010
);

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();

global_var office_online_server_path;

hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
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;

function perform_office_online_server_checks()
{
  local_var path;
  if(office_online_server_path)
  {
    path = hotfix_append_path(path:office_online_server_path, value:"WordConversionService\bin\Converter");
    if (hotfix_check_fversion(file:"sword.dll", version:"16.0.7102.2226", min_version:"16.0.6000.0", path:path, bulletin:bulletin, kb:"3115134", product:"Office Online Server") == HCF_OLDER)
      vuln = TRUE;
  }
}

######################################################################
# Visio Checks
######################################################################
function perform_visio_checks()
{
  local_var installs,install,share,path,version;

  # Preconditions
  installs = get_kb_list("SMB/Office/Visio/*/VisioPath");
  if(isnull(installs))
    return;

  share = hotfix_path2share(path:path);
  if(!is_accessible_share(share:share))
    return;

  # Visio checks
  foreach install (keys(installs))
  {
    version = install - 'SMB/Office/Visio/' - '/VisioPath';
    if ("12.0" >!< version && "14.0" >!< version && "15.0" >!< version && "16.0" >!< version)
      continue;
    path = installs[install];
    # Visio Viewer
    if ("12.0" >< version && hotfix_is_vulnerable(path:path, file:"vviewdwg.dll", version:"12.0.6749.5000", min_version:"12.0.6600.0", bulletin:bulletin, kb:"2596915"))
      vuln = TRUE;
    if ("14.0" >< version && hotfix_is_vulnerable(path:path, file:"vviewdwg.dll", version:"14.0.7170.5000", min_version:"14.0.6500.0", bulletin:bulletin, kb:"2999465"))
      vuln = TRUE;

    # Main Visio Executable Checks
    if ("12.0" >< version && hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"12.0.6749.5000", min_version:"12.0.6600.0", bulletin:bulletin, kb:"3114740"))
      vuln = TRUE;
    if ("14.0" >< version && hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"14.0.7170.5000", min_version:"14.0.6500.0", bulletin:bulletin, kb:"3114872"))
      vuln = TRUE;
    if ("15.0" >< version && hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"15.0.4831.1000", min_version:"15.0.4000.0", bulletin:bulletin, kb:"3115020"))
      vuln = TRUE;
    if ("16.0" >< version && 
      (
        hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"16.0.4390.1000", channel:"MSI", channel_product:"Visio", bulletin:bulletin, kb:"3115041") ||
        # deferred 1
        hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"16.0.6001.1082", channel:"Deferred", channel_product:"Visio", bulletin:bulletin, kb:"3115041") ||
        # deferred 2
        hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"16.0.6741.2048", channel:"Deferred", channel_version:"1602", channel_product:"Visio", bulletin:bulletin, kb:"3115041") ||
        # first release for deferred
        hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"16.0.6965.2058", channel:"First Release for Deferred", channel_product:"Visio", bulletin:bulletin, kb:"3115041") ||
        # current
        hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"16.0.6965.2058", channel:"Current", channel_product:"Visio", bulletin:bulletin, kb:"3115041") 
      )
    ) vuln = TRUE;
  }
}

######################################################################
# Office Web Apps
######################################################################
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:"14.0.7170.5000", min_version:"14.0.7015.1000", path:path, bulletin:bulletin, kb:"3115244", product:"Office Web Apps 2010") == HCF_OLDER)
      vuln = 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:"ExcelServicesEcs\bin");
    if (hotfix_check_fversion(file:"xlsrv.dll", version:"15.0.4833.1000", min_version:"15.0.4571.1500", path:path, bulletin:bulletin, kb:"3115170", product:"Office Web Apps 2013") == HCF_OLDER)
      vuln = TRUE;
  }
}

function perform_office_checks()
{
  local_var office_vers, office_sp, path, excel_checks;
  office_vers = hotfix_check_office_version();

  # 2010
  if (office_vers["14.0"])
  {
    office_sp = get_kb_item("SMB/Office/2010/SP");
    if (!isnull(office_sp) && office_sp == 2)
    {
      path = hotfix_append_path(path:hotfix_get_officeprogramfilesdir(officever:"14.0"), value:"Microsoft Office\Office14");
      if (
        hotfix_check_fversion(file:"wwlibcxm.dll", version: "14.0.7170.5000", path:path, bulletin:bulletin, kb:"3115198", product:"Microsoft Office 2010 SP2") == HCF_OLDER
      ) vuln = TRUE;
    }
  }

  # 2016
  if (office_vers['16.0'])
  {
    path = hotfix_append_path(path:hotfix_get_officeprogramfilesdir(officever:"16.0"), value:"Microsoft Office\root\Office16");
    office_sp = get_kb_item("SMB/Office/2016/SP");
    if (!isnull(office_sp) && office_sp == 0)
    {
      if (
        hotfix_check_fversion(file:"mso.dll", version:"16.0.4390.1000", path:path, bulletin:bulletin, kb:"3115144", product:"Microsoft Office 2016") == HCF_OLDER
      ) vuln = TRUE;
    }
  }

  ######################################################################
  # Excel Checks
  ######################################################################
  excel_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6749.5000", "kb", "3115107"),
    "14.0", make_array("sp", 2, "version", "14.0.7170.5000", "kb", "3115130")
  );
  if (hotfix_check_office_product(product:"Excel", checks:excel_checks, bulletin:bulletin))
    vuln = TRUE;
}

function perform_office_product_checks()
{
  local_var checks, word_vwr_checks, vwr_checks, compat_checks, kb;

  local_var installs, install, path; # For DLL checks

  ######################################################################
  # Word Checks
  ######################################################################
  checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6749.5000", "kb", "3115195"),
    "14.0", make_array("sp", 2, "version", "14.0.7170.5000", "kb", "3115243"),
    "15.0", make_array("sp", 1, "version", "15.0.4833.1000", "kb", "3115173"),
    "16.0", make_nested_list(
      make_array("sp", 0, "version", "16.0.4393.1000", "channel", "MSI", "kb", "3115182"),
      make_array("sp", 0, "version", "16.0.6001.1082", "channel", "Deferred", "kb", "3115182"),
      make_array("sp", 0, "version", "16.0.6741.2048", "channel", "Deferred", "channel_version", "1602", "kb", "3115182"),
      make_array("sp", 0, "version", "16.0.6965.2058", "channel", "First Release for Deferred", "kb", "3115182"),
      make_array("sp", 0, "version", "16.0.6965.2058", "channel", "Current", "kb", "3115182")
    )
  );
  if (hotfix_check_office_product(product:"Word", checks:checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # Word Viewer
  ######################################################################
  installs = get_kb_list("SMB/Office/WordViewer/*/ProductPath");
  if(!isnull(installs))
  {
    word_vwr_checks = make_array(
      "11.0", make_array("version", "11.0.8429.0", "kb", "3115187")
    );
    if (hotfix_check_office_product(product:"WordViewer", display_name:"Word Viewer", checks:word_vwr_checks, bulletin:bulletin))
      vuln = TRUE;
  }

  ######################################################################
  # Word 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:"12.0.6749.5000", kb:"3115194", bulletin:bulletin, min_version:"12.0.0.0", product:"Microsoft Office Compatibility Pack") == HCF_OLDER)
      vuln = TRUE;
  }

  ######################################################################
  # Excel Compatibility pack
  ######################################################################
  compat_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6749.5000", "kb", "3115111")
  );
  if (hotfix_check_office_product(product:"ExcelCnv", display_name:"Office Compatibility Pack SP3", checks:compat_checks, bulletin:bulletin))
    vuln = 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, prod;

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

  # Office Services and Web Apps
  ######################################################################
  # SharePoint Server 2010 SP2 - Word Automation Services
  ######################################################################
  if (sps_2010_path && sps_2010_sp == "2" && sps_2010_edition == "Server")
  {
    path = hotfix_append_path(path:sps_2010_path, value:"WebServices\WordServer\Core");
    if (hotfix_check_fversion(file:"sword.dll", version:"14.0.7170.5000", path:path, bulletin:bulletin, kb:"3115196", product:"Office SharePoint Server 2010 Word Automation Services") == HCF_OLDER)
      vuln = TRUE;
  }

  if (sps_2013_path)
  {
    if (sps_2013_sp == "1")
    {
      if(sps_2013_edition == "Server")
      {
        path = hotfix_append_path(path:sps_2013_path, value:"WebServices\ConversionServices");
        if (hotfix_check_fversion(file:"sword.dll", version:"15.0.4833.1000", min_version:"15.0.0.0", path:path, bulletin:bulletin, kb:"3115014", product:"Office SharePoint Server 2013 Word Automation Services") == HCF_OLDER)
          vuln = TRUE;
      }
    }
  }
}

perform_office_online_server_checks();
perform_office_checks();
perform_office_product_checks();
perform_sharepoint_checks();
perform_owa_checks();
perform_visio_checks();

if (vuln)
{
  set_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');
}

Packetstorm

data sourcehttps://packetstormsecurity.com/files/download/139671/office_ole_multiple_dll_hijack.rb.txt
idPACKETSTORM:139671
last seen2016-12-05
published2016-11-10
reporterYorick Koster
sourcehttps://packetstormsecurity.com/files/139671/Office-OLE-DLL-Hijacking.html
titleOffice OLE DLL Hijacking