Vulnerabilities > CVE-2015-1636 - Cross-site Scripting vulnerability in Microsoft Sharepoint Foundation and Sharepoint Server

047910
CVSS 3.5 - LOW
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
microsoft
CWE-79
nessus
NVD
Published: 2015-03-11
Updated: 2018-10-12

Summary

Cross-site scripting (XSS) vulnerability in Microsoft SharePoint Foundation 2013 Gold and SP1 and SharePoint Server 2013 Gold and SP1 allows remote authenticated users to inject arbitrary web script or HTML via a crafted request, aka "Microsoft SharePoint XSS Vulnerability."

Vulnerable Configurations

Part Description Count
Application
Microsoft
4

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Embedding Scripts in Non-Script Elements
    This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an attacker to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote attacker to collect and interpret the output of said attack.
  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Cross-Site Scripting in Error Pages
    An attacker distributes a link (or possibly some other query structure) with a request to a third party web server that is malformed and also contains a block of exploit code in order to have the exploit become live code in the resulting error page. When the third party web server receives the crafted request and notes the error it then creates an error message that echoes the malformed message, including the exploit. Doing this converts the exploit portion of the message into to valid language elements that are executed by the viewing browser. When a victim executes the query provided by the attacker the infected error message error message is returned including the exploit code which then runs in the victim's browser. XSS can result in execution of code as well as data leakage (e.g. session cookies can be sent to the attacker). This type of attack is especially dangerous since the exploit appears to come from the third party web server, who the victim may trust and hence be more vulnerable to deception.
  • Cross-Site Scripting Using Alternate Syntax
    The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.

Msbulletin

bulletin_idMS15-022
bulletin_url
date2015-03-10T00:00:00
impactRemote Code Execution
knowledgebase_id3038999
knowledgebase_url
severityImportant
titleVulnerabilities in Microsoft Office Could Allow Remote Code Execution

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS15-022.NASL
descriptionThe remote Windows host has a version of Microsoft Office, Office Compatibility Pack, Microsoft Word Viewer, Microsoft Excel Viewer, SharePoint Server, or Microsoft Office Web Apps that is affected by multiple vulnerabilities : - Multiple remote code execution vulnerabilities exist due to incorrectly handling objects and rich text format files in memory. A remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted file using the affected software, resulting in execution of arbitrary code in the context of the current user. (CVE-2015-0085, CVE-2015-0086, CVE-2015-0097) - Multiple cross-site scripting vulnerabilities exist due to improperly sanitized requests to affected SharePoint servers. An authenticated attacker, via a specially crafted request, can exploit these vulnerabilities to execute script code in the security context of the current user. (CVE-2015-1633, CVE-2015-1636)
last seen2020-06-01
modified2020-06-02
plugin id81757
published2015-03-11
reporterThis script is Copyright (C) 2015-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/81757
titleMS15-022: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3038999)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(81757);
  script_version("1.12");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id(
    "CVE-2015-0085",
    "CVE-2015-0086",
    "CVE-2015-0097",
    "CVE-2015-1633",
    "CVE-2015-1636"
  );
  script_bugtraq_id(
    72899,
    72911,
    72917,
    72919,
    72922
  );
  script_xref(name:"MSFT", value:"MS15-022");
  script_xref(name:"MSKB", value:"2984939");
  script_xref(name:"MSKB", value:"2956103");
  script_xref(name:"MSKB", value:"2899580");
  script_xref(name:"MSKB", value:"2956109");
  script_xref(name:"MSKB", value:"2956076");
  script_xref(name:"MSKB", value:"2956138");
  script_xref(name:"MSKB", value:"2883100");
  script_xref(name:"MSKB", value:"2889839");
  script_xref(name:"MSKB", value:"2956142");
  script_xref(name:"MSKB", value:"2920812");
  script_xref(name:"MSKB", value:"2956139");
  script_xref(name:"MSKB", value:"2956151");
  script_xref(name:"MSKB", value:"2956163");
  script_xref(name:"MSKB", value:"2956188");
  script_xref(name:"MSKB", value:"2956189");
  script_xref(name:"MSKB", value:"2956107");
  script_xref(name:"MSKB", value:"2956106");
  script_xref(name:"MSKB", value:"2956136");
  script_xref(name:"MSKB", value:"2956143");
  script_xref(name:"MSKB", value:"2920731");
  script_xref(name:"MSKB", value:"2956069");
  script_xref(name:"MSKB", value:"2956158");
  script_xref(name:"MSKB", value:"2881068");
  script_xref(name:"MSKB", value:"2956208");
  script_xref(name:"MSKB", value:"2956175");
  script_xref(name:"MSKB", value:"2956183");
  script_xref(name:"MSKB", value:"2760508");
  script_xref(name:"MSKB", value:"2956180");
  script_xref(name:"MSKB", value:"2956153");
  script_xref(name:"MSKB", value:"2760554");
  script_xref(name:"MSKB", value:"2880473");
  script_xref(name:"MSKB", value:"2737989");
  script_xref(name:"MSKB", value:"2881078");
  script_xref(name:"MSKB", value:"2956181");
  script_xref(name:"MSKB", value:"2760361");
  script_xref(name:"IAVA", value:"2015-A-0052");

  script_name(english:"MS15-022: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3038999)");
  script_summary(english:"Checks the Office, SharePoint, and OWA version.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple remote code execution
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host has a version of Microsoft Office, Office
Compatibility Pack, Microsoft Word Viewer, Microsoft Excel Viewer,
SharePoint Server, or Microsoft Office Web Apps that is affected by
multiple vulnerabilities :

  - Multiple remote code execution vulnerabilities exist due
    to incorrectly handling objects and rich text format
    files in memory. A remote attacker can exploit these
    vulnerabilities by convincing a user to open a specially
    crafted file using the affected software, resulting in
    execution of arbitrary code in the context of the
    current user. (CVE-2015-0085, CVE-2015-0086,
    CVE-2015-0097)

  - Multiple cross-site scripting vulnerabilities exist due
    to improperly sanitized requests to affected SharePoint
    servers. An authenticated attacker, via a specially
    crafted request, can exploit these vulnerabilities to
    execute script code in the security context of the
    current user. (CVE-2015-1633, CVE-2015-1636)");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-022");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Office 2007, 2010, 2013,
Office Compatibility Pack, Microsoft Word Viewer, Microsoft Excel
Viewer, SharePoint Server, and Office Web Apps.");
  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_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/03/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/03/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/11");

  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_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_compatibility_pack");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint_server");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_web_apps");
  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) 2015-2018 Tenable Network Security, Inc.");

  script_dependencies("office_installed.nasl", "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");

global_var bulletin, vuln;

function get_ver()
{
  local_var fh, path, rc, share, ver;

  path = _FCT_ANON_ARGS[0];

  share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:path);

  rc = NetUseAdd(share:share);
  if (rc != 1)
  {
    NetUseDel();
    audit(AUDIT_SHARE_FAIL, share);
  }

  ver = NULL;
  path = ereg_replace(string:path, pattern:"^[A-Za-z]:(.*)", replace:'\\1\\');

  fh = CreateFile(
    file               : path,
    desired_access     : GENERIC_READ,
    file_attributes    : FILE_ATTRIBUTE_NORMAL,
    share_mode         : FILE_SHARE_READ,
    create_disposition : OPEN_EXISTING
  );
  if (!isnull(fh))
  {
    ver = GetFileVersion(handle:fh);
    ver = join(ver, sep:".");
    CloseFile(handle:fh);
  }

  NetUseDel(close:FALSE);

  return ver;
}

function check_vuln(fix, kb, name, path, ver)
{
  local_var info;

  if (isnull(ver))
    ver = get_ver(path);

  if (isnull(ver) || ver_compare(ver:ver, fix:fix, strict:FALSE) >= 0)
    return 0;

  info =
    '\n  Product           : ' + name +
    '\n  Path              : ' + path +
    '\n  Installed version : ' + ver +
    '\n  Fixed version     : ' + fix +
    '\n';
  hotfix_add_report(info, bulletin:bulletin, kb:kb);

  vuln = TRUE;
}

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

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

bulletin = 'MS15-022';
kbs = make_list(
  2984939, # Office 2007
  2956103, # Excel 2007
  2899580, # PowerPoint 2007
  2956109, # Word 2007
  2956076, # Office 2010
  2956138, # Office 2010
  2883100, # Office 2010
  2889839, # Office 2010 (oart)
  2956142, # Excel 2010
  2920812, # PowerPoint 2010
  2956139, # Word 2010
  2956151, # Office 2013
  2956163, # Word 2013
  2956188, # Word Viewer
  2956189, # Excel Viewer
  2956107, # Office Compat Pack (wordconv)
  2956106, # Office Compat Pack (xlconv)
  2956136, # SharePoint 2010 Word Automation Services
  2956143, # SharePoint 2013 Excel Services
  2920731, # SharePoint 2013 Word Automation Services
  2956069, # Office Web Apps 2010
  2956158, # Office Web Apps 2013
  2881068, # SharePoint Server 2007
  2956208, # SharePoint Server 2010
  2956175, # SharePoint Server 2013
  2956183, # SharePoint Server 2013
  2760508, # SharePoint Server 2013
  2956180,
  2956153,
  2760554,
  2880473,
  2737989,
  2881078,
  2956181,
  2760361
);

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);

# Connect to the registry.
registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);

# Get the path information for SharePoint Server 2007
sps_2007_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWARE\Microsoft\Office Server\12.0\InstallPath"
);

# Get the path information for SharePoint Services 3.0
sps_30_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\12.0\Location"
);

# Get path information for SharePoint Server 2010.
sps_2010_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWARE\Microsoft\Office Server\14.0\InstallPath"
);

# Get the path information for SharePoint Foundation 2010
spf_2010_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14.0\Location"
);

# Get the path information for SharePoint Server 2013
sps_2013_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWARE\Microsoft\Office Server\15.0\InstallPath"
);

# Get the path information for SharePoint Foundation 2013
spf_2013_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWRAE\Microsoft\Shared Tools\Web Server Extensions\15.0\Location"
);

owa_2013_path = get_registry_value(
  handle : hklm,
  item   : "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.WacServer\InstallLocation"
);

# Close connection to registry.
RegCloseKey(handle:hklm);
close_registry(close:FALSE);
# Get path information for Office Web Apps.
owa_2010_path = sps_2010_path;

######################################################################
# Office Web Apps 2010 SP1 / SP2
######################################################################
if (owa_2010_path)
{
  check_vuln(
    name : "Office Web Apps 2010",
    kb   : "2956070",
    path : owa_2010_path + "WebServices\ConversionService\Bin\Converter\sword.dll",
    fix  : "14.0.7145.5000"
  );
}

######################################################################
# Office Web Apps 2013 SP1 / SP2
######################################################################
if (owa_2013_path)
{
  check_vuln(
    name : "Office Web Apps 2013",
    kb   : "2956158",
    path : windir + "\Microsoft.NET\assembly\GAC_MSIL\Microsoft.Office.Web.Apps.Environment.WacServer\v4.0_15.0.0.0__71e9bce111e9429c\Microsoft.Office.Web.Apps.Environment.WacServer.dll",
    fix : "15.0.4693.1000"
  );
}
######################################################################
# SharePoint Server 2007 SP3
######################################################################
if (sps_2007_path && sps_30_path)
{
  check_vuln(
    name : "Office SharePoint Server 2007",
    kb   : "2881068",
    path : sps_30_path + "\BIN\offparser.dll",
    fix  : "12.0.6717.5000"
  );
}

######################################################################
# SharePoint Server 2010 SP2
######################################################################
if (sps_2010_path)
{
  check_vuln(
    name : "Office SharePoint Server 2010",
    kb   : "2956136",
    path : sps_2010_path + "WebServices\WordServer\Core\sword.dll",
    fix  : "14.0.7145.5000"
  );
}

######################################################################
# SharePoint Foundation 2010
######################################################################
if (spf_2010_path)
{
  path = spf_2010_path + "Bin\Onetutil.dll";
  ver = get_ver(path);

  if (ver && ver =~ "^14\.")
  {
    check_vuln(
      name : "SharePoint Foundation 2010",
      kb   : "2956208",
      path : path,
      ver  : ver,
      fix  : "14.0.7145.5000"
    );
  }
}

######################################################################
# SharePoint Server 2013 SP2
######################################################################
if (sps_2013_path)
{
  check_vuln(
    name : "Office SharePoint Server 2013 Excel Services",
    kb   : "2956143",
    path : sps_2013_path + "Bin\xlsrv.dll",
    fix  : "15.0.4701.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 Word Automation Services",
    kb   : "2920731",
    path : sps_2013_path + "WebServices\ConversionServices\sword.dll",
    fix  : "15.0.4701.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (arcsrvloc)",
    kb   : "2956180",
    path : windir + "\Microsoft.NET\assembly\GAC_MSIL\Microsoft.Office.Access.Server\v4.0.15.0.0.0__71e9bce111e9429c\Microsoft.Office.Access.Server.dll",
    fix  : "15.0.4525.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (coreserverloc)",
    kb   : "2956153",
    path : sps_2013_path + "Bin\MSSCPI.DLL",
    fix  : "15.0.4681.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (eduloc)",
    kb   : "2760554",
    path : windir + "\Microsoft.NET\assembly\GAC_MSIL\Microsoft.SharePoint.Client.UserProfiles\v4.0.15.0.0.0__71e9bce111e9429c\Microsoft.SharePoint.Client.UserProfiles.dll",
    fix  : "15.0.4567.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (ifsloc)",
    kb   : "2880473",
    path : windir + "\Microsoft.NET\assembly\GAC_MSIL\Microsoft.Office.InfoPath.Server\v4.0.15.0.0.0__71e9bce111e9429c\Microsoft.Office.InfoPath.Server.dll",
    fix  : "15.0.4701.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (lpsrvloc)",
    kb   : "2737989",
    path : sps_2013_path + "WebServices\ConversionServices\oartserver.dll",
    fix  : "15.0.4701.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (ppsmaloc)",
    kb   : "2881078",
    path : windir + "\Microsoft.NET\assembly\GAC_MSIL\Microsoft.PerformancePoint.Scorecards.Server\v4.0.15.0.0.0__71e9bce111e9429c\Microsoft.PerformancePoint.Scorecards.Server.dll",
    fix  : "15.0.4701.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (vsrvloc)",
    kb   : "2956181",
    path : windir + "\Microsoft.NET\assembly\GAC_MSIL\Microsoft.Office.Viso.Server\v4.0.15.0.0.0__71e9bce111e9429c\Microsoft.Office.Visio.Server.dll",
    fix  : "15.0.4659.1000"
  );

  check_vuln(
    name : "SharePoint Server 2013 (wasrvloc)",
    kb   : "2760361",
    path : sps_2013_path + "WebServices\ConversionServices\msores.dll",
    fix  : "15.0.4697.1000"
  );
}

######################################################################
# SharePoint Foundation 2013
######################################################################
if (spf_2013_path)
{
  check_vuln(
    name : "SharePoint Foundation 2013",
    kb   : "2956175",
    path : spf_2013_path + "Bin\CsiSrv.dll",
    fix  : "15.0.4699.1000"
  );

  check_vuln(
    name : "SharePoint Foundation 2013 (wssloc)",
    kb   : "2956183",
    path : spf_2013_path + "wsssetup.dll",
    fix  : "15.0.4701.1000"
  );

  if (sps_2013_path)
  {
    check_vuln(
      name : "SharePoint Foundation 2013 (smsloc)",
      kb   : "2760508",
      path : sps_2013_path + "\WebServices\ConversionServices\IGXServer.DLL",
      fix  : "15.0.4699.1000"
    );
  }
}


# Excel
kb = "";
installs = get_kb_list("SMB/Office/Excel/*/ProductPath");
if (!isnull(installs))
{
  foreach install (keys(installs))
  {
    version = install - 'SMB/Office/Excel/' - '/ProductPath';
    path = installs[install];
    info = "";

    # Excel 2010
    if (version =~ "^14\." && ver_compare(ver:version, fix:'14.0.7145.5001') < 0)
    {
      office_sp = get_kb_item('SMB/Office/2010/SP');
      if (!isnull(office_sp) && office_sp == 2)
      {
        info =
          '\n  Product           : Excel 2010' +
          '\n  File              : ' + path +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 14.0.7145.5001\n';
        kb = '2956142';
      }
    }

    # Excel 2007
    if (version =~ "^12\." && ver_compare(ver:version, fix:'12.0.6718.5000') < 0)
    {
      office_sp = get_kb_item("SMB/Office/2007/SP");
      if (!isnull(office_sp) && (office_sp == 3))
      {
        info =
          '\n  Product           : Excel 2007' +
          '\n  File              : ' + path +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 12.0.6718.5000\n';
        kb = '2956103';
      }
    }

    if (info)
    {
      hotfix_add_report(info, bulletin:bulletin, kb:kb);
      vuln = TRUE;
    }
  }
}

# PowerPoint
kb = "";
installs = get_kb_list("SMB/Office/PowerPoint/*/ProductPath");
if (!isnull(installs))
{
  foreach install (keys(installs))
  {
    version = install - 'SMB/Office/PowerPoint/' - '/ProductPath';
    path = installs[install];
    info = "";

    # PowerPoint 2010 SP2
    if (version =~ "^14\." && ver_compare(ver:version, fix:'14.0.7145.5001') < 0)
    {
      office_sp = get_kb_item("SMB/Office/2010/SP");
      if (!isnull(office_sp) && (office_sp == 2))
      {
        info =
          '\n  Product           : PowerPoint 2010' +
          '\n  File              : ' + path +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 14.0.7145.5001' + '\n';
        kb = "2920812";
      }
    }

    if (info)
    {
      hotfix_add_report(info, bulletin:bulletin, kb:kb);
      vuln = TRUE;
    }
  }
}

# Word
kb = "";
installs = get_kb_list("SMB/Office/Word/*/ProductPath");
if (!isnull(installs))
{
  foreach install (keys(installs))
  {
    version = install - 'SMB/Office/Word/' - '/ProductPath';
    path = installs[install];
    info = "";

    # Word 2013
    if (version =~ "^15\." && ver_compare(ver:version, fix:'15.0.4701.1001') < 0)
    {
      office_sp = get_kb_item("SMB/Office/2013/SP");
      if (!isnull(office_sp) && (office_sp <= 1))
      {
        info =
          '\n  Product           : Word 2013' +
          '\n  File              : ' + path +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 15.0.4701.1001' + '\n';
        kb = "2956163";
      }
    }

    # Word 2010 SP2
    if (version =~ "^14\." && ver_compare(ver:version, fix:'14.0.7145.5001') < 0)
    {
      office_sp = get_kb_item("SMB/Office/2010/SP");
      if (!isnull(office_sp) && (office_sp == 2))
      {
        info =
          '\n  Product           : Word 2010' +
          '\n  File              : ' + path +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 14.0.7145.5001' + '\n';
        kb = "2956139";
      }
    }

    # Word 2007 SP3
    if (version =~ "^12\." && ver_compare(ver:version, fix:'12.0.6718.5000') < 0)
    {
      office_sp = get_kb_item("SMB/Office/2007/SP");
      if (!isnull(office_sp) && office_sp == 3)
      {
        info =
          '\n  Product           : Word 2007 SP3' +
          '\n  File              : ' + path +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 12.0.6718.5000' + '\n';
        kb = "2956109";
      }
    }

    if (info)
    {
      hotfix_add_report(info, bulletin:bulletin, kb:kb);
      vuln = TRUE;
    }
  }
}

# Word Viewer
installs = get_kb_list("SMB/Office/WordViewer/*/ProductPath");
if (!isnull(installs))
{
  foreach install (keys(installs))
  {
    info = "";
    version = install - 'SMB/Office/WordViewer/' - '/ProductPath';
    path = installs[install];
    if (isnull(path)) path = "n/a";

    if (ver_compare(ver:version, fix:'11.0.8416.0') < 0)
    {
      info =
        '\n  Product           : Word Viewer' +
        '\n  File              : ' + path +
        '\n  Installed version : ' + version +
        '\n  Fixed version     : 11.0.8416.0' + '\n';
      kb = "2956188";
    }

    if (info)
    {
      hotfix_add_report(info, bulletin:bulletin, kb:kb);
      vuln = TRUE;
      break;
    }
  }
}

# Excel Viewer
installs = get_kb_list("SMB/Office/ExcelViewer/*/ProductPath");
if (!isnull(installs))
{
  foreach install (keys(installs))
  {
    info = "";
    version = install - 'SMB/Office/ExcelViewer/' - '/ProductPath';
    path = installs[install];
    if (isnull(path)) path = "n/a";

    if (ver_compare(ver:version, fix:'12.0.6717.5000') < 0)
    {
      info =
        '\n  Product           : Excel Viewer' +
        '\n  File              : ' + path +
        '\n  Installed version : ' + version +
        '\n  Fixed version     : 12.0.6717.5000' + '\n';
      kb = "2956189";
    }

    if (info)
    {
      hotfix_add_report(info, bulletin:bulletin, kb:kb);
      vuln = TRUE;
      break;
    }
  }
}

# Ensure Office is installed
office_vers = hotfix_check_office_version();
if (!isnull(office_vers))
{
  # Ensure we can get common files directory
  commonfiles = hotfix_get_officecommonfilesdir(officever:"14.0");
  if (commonfiles)
  {
    # Ensure share is accessible
    share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:commonfiles);
    if (is_accessible_share(share:share))
    {
      # Office 2013
      if (office_vers["15.0"])
      {
        office_sp = get_kb_item("SMB/Office/2013/SP");
        if (!isnull(office_sp) && office_sp <= 1)
        {
          path = commonfiles + "\Microsoft Shared\Office15";
          old_report = hotfix_get_report();
          check_file = "Mso.dll";

          if (hotfix_check_fversion(path:path, file:check_file, version:"15.0.4701.1000", min_version:"15.0.0.0") == HCF_OLDER)
          {
            file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
            kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
            kb_name = str_replace(find:"//", replace:"/", string:kb_name);
            version = get_kb_item(kb_name);

            info =
              '\n  Product           : Microsoft Office 2013' +
              '\n  File              : ' + path + '\\' + check_file +
              '\n  Installed version : ' + version +
              '\n  Fixed version     : 15.0.4701.1000' + '\n';

            hcf_report = '';
            hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2956151");
            vuln = TRUE;
          }
        }
      }
      # Office 2010
      if (office_vers["14.0"])
      {
        office_sp = get_kb_item("SMB/Office/2010/SP");
        if (!isnull(office_sp) && office_sp == 2)
        {

          path = commonfiles + "\Microsoft Shared\Office14";
          old_report = hotfix_get_report();
          check_file = "Mso.dll";

          if (hotfix_check_fversion(path:path, file:check_file, version:"14.0.7145.5000", min_version:"14.0.0.0") == HCF_OLDER)
          {
            file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
            kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
            kb_name = str_replace(find:"//", replace:"/", string:kb_name);
            version = get_kb_item(kb_name);

            info =
              '\n  Product           : Microsoft Office 2010' +
              '\n  File              : ' + path + '\\' + check_file +
              '\n  Installed version : ' + version +
              '\n  Fixed version     : 14.0.7145.5000' + '\n';

            hcf_report = '';
            hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2956076");
            vuln = TRUE;
          }

          old_report = hotfix_get_report();
          check_file = "Oart.dll";
          if (hotfix_check_fversion(path:path, file:check_file, version:"14.0.7134.5000", min_version:"14.0.0.0") == HCF_OLDER)
          {
            file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
            kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
            kb_name = str_replace(find:"//", replace:"/", string:kb_name);
            version = get_kb_item(kb_name);

            info =
              '\n  Product           : Microsoft Office 2010' +
              '\n  File              : ' + path + '\\' + check_file +
              '\n  Installed version : ' + version +
              '\n  Fixed version     : 14.0.7134.5000' + '\n';

            hcf_report = '';
            hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2883100");
            vuln = TRUE;
          }

          old_report = hotfix_get_report();
          check_file = "Oartconv.dll";
          if (hotfix_check_fversion(path:path, file:check_file, version:"14.0.7134.5000", min_version:"14.0.0.0") == HCF_OLDER)
          {
            file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
            kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
            kb_name = str_replace(find:"//", replace:"/", string:kb_name);
            version = get_kb_item(kb_name);

            info =
              '\n  Product           : Microsoft Office 2010' +
              '\n  File              : ' + path + '\\' + check_file +
              '\n  Installed version : ' + version +
              '\n  Fixed version     : 14.0.7134.5000' + '\n';

            hcf_report = '';
            hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2889839");
            vuln = TRUE;
          }

          path = get_kb_item("SMB/Office/Word/14.0/Path");
          if (!path) path = get_kb_item("SMB/Office/Excel/14.0/Path");
          if (!path) path = get_kb_item("SMB/Office/PowerPoint/14.0/Path");
          if (path)
          {
            old_report = hotfix_get_report();
            check_file = "Wwlib.dll";

            if (hotfix_check_fversion(path:path, file:check_file, version:"14.0.7145.5000", min_version:"14.0.0.0") == HCF_OLDER)
            {
              file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
              kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
              kb_name = str_replace(find:"//", replace:"/", string:kb_name);
              version = get_kb_item(kb_name);

              info =
                '\n  Product           : Microsoft Office 2010' +
                '\n  File              : ' + path + '\\' + check_file +
                '\n  Installed version : ' + version +
                '\n  Fixed version     : 14.0.7145.5000' + '\n';

              hcf_report = '';
              hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2956138");
              vuln = TRUE;
            }
          }
        }
      }

      # Office 2007 SP3
      if (office_vers["12.0"])
      {
        office_sp = get_kb_item("SMB/Office/2007/SP");
        if (!isnull(office_sp) && office_sp == 3)
        {
          path = commonfiles + "\Microsoft Shared\Office12";
          old_report = hotfix_get_report();
          check_file = "Mso.dll";

          if (hotfix_check_fversion(path:path, file:check_file, version:"12.0.6718.5000", min_version:"12.0.0.0") == HCF_OLDER)
          {
            file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
            kb_name = "SMB/FileVersions/" + tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
            version = get_kb_item(kb_name);

            info =
              '\n  Product           : Microsoft Office 2007 SP3' +
              '\n  File              : ' + path + '\\' + check_file +
              '\n  Installed version : ' + version +
              '\n  Fixed version     : 12.0.6718.5000\n';

            hcf_report = '';
            hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2984939");
            vuln = TRUE;
          }

          path = get_kb_item("SMB/Office/PowerPoint/14.0/Path");
          if (!empty_or_null(path))
          {
            old_report = hotfix_get_report();
            check_file = "ppcore.dll";

            if (hotfix_check_fversion(path:path, file:check_file, version:"12.0.6718.5000", min_version:"12.0.0.0") == HCF_OLDER)
            {
              file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
              kb_name = "SMB/FileVersions/" + tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
              version = get_kb_item(kb_name);

              info =
                '\n  Product           : Microsoft PowerPoint 2007 SP3' +
                '\n  File              : ' + path + '\\' + check_file +
                '\n  Installed version : ' + version +
                '\n  Fixed version     : 12.0.6718.5000\n';
              hcf_report = '';
              hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2899580");
              vuln = TRUE;
            }
          }
        }
      }
    }
  }
}

version = '';
installs = get_kb_list("SMB/Office/WordCnv/*/ProductPath");
if (!isnull(installs))
{
  foreach install (keys(installs))
  {
    version = install - 'SMB/Office/WordCnv/' - '/ProductPath';
    path = installs[install];

    if (!isnull(path))
    {
      share = hotfix_path2share(path:path);
      if (!is_accessible_share(share:share))
        audit(AUDIT_SHARE_FAIL, share);

      path = path - '\\Wordconv.exe';

      old_report = hotfix_get_report();
      check_file = "wordcnv.dll";

      if (hotfix_check_fversion(path:path, file:check_file, version:"12.0.6717.5000", min_version:"12.0.0.0") == HCF_OLDER)
      {
        file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
        kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
        kb_name = ereg_replace(pattern:"//"+check_file, replace:"/"+check_file, string:kb_name);
        version = get_kb_item(kb_name);

        info =
          '\n  Product           : Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats' +
          '\n  File              : ' + path + '\\' + check_file +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 12.0.6717.5000' + '\n';

        hcf_report = '';
        hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2956107");
        vuln = TRUE;
      }
    }
  }
}

version = '';
installs = get_kb_list("SMB/Office/ExcelCnv/*/ProductPath");
if (!isnull(installs))
{
  foreach install (keys(installs))
  {
    version = install - 'SMB/Office/ExcelCnv/' - '/ProductPath';
    path = installs[install];
    if (isnull(path)) path = "n/a";

    if (ver_compare(ver:version, fix:'12.0.6717.5000') < 0)
    {
      info =
        '\n  Product           : 2007 Office system and the Office Compatibility Pack' +
        '\n  File              : '+ path +
        '\n  Installed version : '+ version +
        '\n  Fixed version     : 12.0.6717.5000' +
        '\n';
      hotfix_add_report(info, bulletin:bulletin, kb:"2956106");
      vuln = TRUE;
    }
  }
}

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');
}

References