Vulnerabilities > CVE-2015-2477 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Office and Word Viewer

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
microsoft
CWE-119
nessus
NVD
Published: 2015-08-15
Updated: 2018-10-12

Summary

Microsoft Office 2007 SP3, Office for Mac 2011, Office for Mac 2016, and Word Viewer allow remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."

Vulnerable Configurations

Part Description Count
Application
Microsoft
4

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Msbulletin

bulletin_idMS15-081
bulletin_url
date2015-08-11T00:00:00
impactRemote Code Execution
knowledgebase_id3080790
knowledgebase_url
severityCritical
titleVulnerabilities in Microsoft Office Could Allow Remote Code Execution

Nessus

  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_MS15-081_OFFICE_2011.NASL
    descriptionThe remote Mac OS X host has a version of Microsoft Office installed that is affected by multiple remote code execution vulnerabilities : - Multiple remote code execution vulnerabilities exist due to improper handling of objects in memory. A remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted Office file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2015-2468, CVE-2015-2469, CVE-2015-2477) - A remote code execution vulnerability exists when Office decreases an integer value beyond its intended minimum value. A remote attacker can exploit this vulnerability by convincing a user to open a specially crafted Office file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2015-2470)
    last seen2020-06-01
    modified2020-06-02
    plugin id85349
    published2015-08-12
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/85349
    titleMS15-081: Vulnerability in Microsoft Office Could Allow Remote Code Execution (3072620) (Mac OS X)
    code
    #TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(85349);
  script_version("1.10");
  script_cvs_date("Date: 2019/11/22");

  script_cve_id(
    "CVE-2015-2468",
    "CVE-2015-2469",
    "CVE-2015-2470",
    "CVE-2015-2477"
  );
  script_bugtraq_id(
    76206,
    76212,
    76214,
    76219
  );
  script_xref(name:"MSFT", value:"MS15-081");
  script_xref(name:"IAVA", value:"2015-A-0194");
  script_xref(name:"MSKB", value:"3081349");

  script_name(english:"MS15-081: Vulnerability in Microsoft Office Could Allow Remote Code Execution (3072620) (Mac OS X)");
  script_summary(english:"Checks the version of Microsoft Office.");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote Mac OS X host is affected by
multiple remote code execution vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Mac OS X host has a version of Microsoft Office installed
that is affected by multiple remote code execution vulnerabilities :

  - Multiple remote code execution vulnerabilities exist due
    to improper handling of objects in memory. A remote
    attacker can exploit these vulnerabilities by convincing
    a user to open a specially crafted Office file,
    resulting in the execution of arbitrary code in the
    context of the current user. (CVE-2015-2468,
    CVE-2015-2469, CVE-2015-2477)

  - A remote code execution vulnerability exists when Office
    decreases an integer value beyond its intended minimum
    value. A remote attacker can exploit this vulnerability
    by convincing a user to open a specially crafted Office
    file, resulting in the execution of arbitrary code in
    the context of the current user. (CVE-2015-2470)");
  script_set_attribute(attribute:"see_also", value:"https://technet.microsoft.com/library/security/ms15-081");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a patch for Office for Mac 2011.");
  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:"2015/08/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/08/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office:2011:mac");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office:2016:mac");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("ssh_func.inc");
include("macosx_func.inc");


if(sshlib::get_support_level() >= sshlib::SSH_LIB_SUPPORTS_COMMANDS)
  enable_ssh_wrappers();
else disable_ssh_wrappers();

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

os = get_kb_item("Host/MacOSX/Version");
if (!os) audit(AUDIT_OS_NOT, "Mac OS X");

# Gather version info.
info = '';
installs = make_array();

prod = 'Office for Mac 2011';
plist = "/Applications/Microsoft Office 2011/Office/MicrosoftComponentPlugin.framework/Versions/14/Resources/Info.plist";
cmd =  'cat \'' + plist + '\' | ' +
  'grep -A 1 CFBundleShortVersionString | ' +
  'tail -n 1 | ' +
  'sed \'s/.*string>\\(.*\\)<\\/string>.*/\\1/g\'';
version = exec_cmd(cmd:cmd);
if (version && version =~ "^[0-9]+\.")
{
  version = chomp(version);
  if (version !~ "^14\.") exit(1, "Failed to get the version for "+prod+" - '"+version+"'.");

  installs[prod] = version;

  ver = split(version, sep:'.', keep:FALSE);
  for (i=0; i<max_index(ver); i++)
    ver[i] = int(ver[i]);

  fixed_version = '14.5.4';
  fix = split(fixed_version, sep:'.', keep:FALSE);
  for (i=0; i<max_index(fix); i++)
    fix[i] = int(fix[i]);

  for (i=0; i<max_index(fix); i++)
    if ((ver[i] < fix[i]))
    {
      info +=
        '\n  Product           : ' + prod +
        '\n  Installed version : ' + version +
        '\n  Fixed version     : ' + fixed_version + '\n';
      break;
    }
    else if (ver[i] > fix[i])
      break;
}

# Report findings.
if (info)
{
  if (report_verbosity > 0) security_hole(port:0, extra:info);
  else security_hole(0);

  exit(0);
}
else
{
  if (max_index(keys(installs)) == 0) exit(0, "Office for Mac 2011 is not installed.");
  else
  {
    msg = 'The host has ';
    foreach prod (sort(keys(installs)))
      msg += prod + ' ' + installs[prod] + ' and ';
    msg = substr(msg, 0, strlen(msg)-1-strlen(' and '));

    msg += ' installed and thus is not affected.';

    exit(0, msg);
  }
}
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS15-081.NASL
    descriptionThe remote Windows host has a version of Microsoft Office, Word, Word Viewer, Excel, PowerPoint, Visio, SharePoint Server, Microsoft Office Compatibility Pack, Microsoft Word Web Apps, or Microsoft Office Web Apps installed that is affected by multiple remote code execution vulnerabilities : - Multiple remote code execution vulnerabilities exist due to improper handling of objects in memory. A remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted Office file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2015-1642, CVE-2015-2467, CVE-2015-2468, CVE-2015-2469, CVE-2015-2477) - An information disclosure vulnerability exists when files at a medium integrity level become accessible to Internet Explorer running in Enhanced Protection Mode (EPM). An attacker can exploit this vulnerability by leveraging another vulnerability to execute code in IE with EPM, and then executing Excel, Notepad, PowerPoint, Visio, or Word using an unsafe command line parameter. (CVE-2015-2423) - A remote code execution vulnerability exists due a failure to properly validate templates. A remote attacker can exploit this vulnerability by convincing a user to open a specially crafted template file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2015-2466) - A remote code execution vulnerability exists when Office decreases an integer value beyond its intended minimum value. A remote attacker can exploit this vulnerability by convincing a user to open a specially crafted Office file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2015-2470)
    last seen2020-06-01
    modified2020-06-02
    plugin id85350
    published2015-08-12
    reporterThis script is Copyright (C) 2015-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/85350
    titleMS15-081: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3080790)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(85350);
  script_version("1.16");
  script_cvs_date("Date: 2018/08/03 11:35:09");

  script_cve_id(
    "CVE-2015-1642",
    "CVE-2015-2423",
    "CVE-2015-2466",
    "CVE-2015-2467",
    "CVE-2015-2468",
    "CVE-2015-2469",
    "CVE-2015-2470",
    "CVE-2015-2477"
  );
  script_bugtraq_id(
    76200,
    76202,
    76204,
    76206,
    76212,
    76214,
    76217,
    76219
  );
  script_xref(name:"MSFT", value:"MS15-081");
  script_xref(name:"MSKB", value:"2553313");
  script_xref(name:"MSKB", value:"2596650");
  script_xref(name:"MSKB", value:"2598244");
  script_xref(name:"MSKB", value:"2687409");
  script_xref(name:"MSKB", value:"2837610");
  script_xref(name:"MSKB", value:"2920691");
  script_xref(name:"MSKB", value:"2920708");
  script_xref(name:"MSKB", value:"2965280");
  script_xref(name:"MSKB", value:"2965310");
  script_xref(name:"MSKB", value:"2986254");
  script_xref(name:"MSKB", value:"3039734");
  script_xref(name:"MSKB", value:"3039798");
  script_xref(name:"MSKB", value:"3054816");
  script_xref(name:"MSKB", value:"3054858");
  script_xref(name:"MSKB", value:"3054876");
  script_xref(name:"MSKB", value:"3054888");
  script_xref(name:"MSKB", value:"3054929");
  script_xref(name:"MSKB", value:"3054960");
  script_xref(name:"MSKB", value:"3054974");
  script_xref(name:"MSKB", value:"3054991");
  script_xref(name:"MSKB", value:"3054992");
  script_xref(name:"MSKB", value:"3055003");
  script_xref(name:"MSKB", value:"3055029");
  script_xref(name:"MSKB", value:"3055030");
  script_xref(name:"MSKB", value:"3055033");
  script_xref(name:"MSKB", value:"3055037");
  script_xref(name:"MSKB", value:"3055039");
  script_xref(name:"MSKB", value:"3055044");
  script_xref(name:"MSKB", value:"3055051");
  script_xref(name:"MSKB", value:"3055052");
  script_xref(name:"MSKB", value:"3055053");
  script_xref(name:"MSKB", value:"3055054");
  script_xref(name:"MSKB", value:"3085538");
  script_xref(name:"IAVA", value:"2015-A-0194");

  script_name(english:"MS15-081: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3080790)");
  script_summary(english:"Checks the Office, SharePoint, and OWA versions.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows 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, Word, Word
Viewer, Excel, PowerPoint, Visio, SharePoint Server, Microsoft Office
Compatibility Pack, Microsoft Word Web Apps, or Microsoft Office Web
Apps installed that is affected by multiple remote code execution
vulnerabilities :

  - Multiple remote code execution vulnerabilities exist due
    to improper handling of objects in memory. A remote
    attacker can exploit these vulnerabilities by convincing
    a user to open a specially crafted Office file,
    resulting in the execution of arbitrary code in the
    context of the current user. (CVE-2015-1642,
    CVE-2015-2467, CVE-2015-2468, CVE-2015-2469,
    CVE-2015-2477)

  - An information disclosure vulnerability exists when
    files at a medium integrity level become accessible to
    Internet Explorer running in Enhanced Protection Mode
    (EPM). An attacker can exploit this vulnerability by
    leveraging another vulnerability to execute code in IE
    with EPM, and then executing Excel, Notepad, PowerPoint,
    Visio, or Word using an unsafe command line parameter.
    (CVE-2015-2423)

  - A remote code execution vulnerability exists due a
    failure to properly validate templates. A remote
    attacker can exploit this vulnerability by convincing a
    user to open a specially crafted template file,
    resulting in the execution of arbitrary code in the
    context of the current user. (CVE-2015-2466)

  - A remote code execution vulnerability exists when Office
    decreases an integer value beyond its intended minimum
    value. A remote attacker can exploit this vulnerability
    by convincing a user to open a specially crafted Office
    file, resulting in the execution of arbitrary code in
    the context of the current user. (CVE-2015-2470)");
  script_set_attribute(attribute:"see_also", value:"https://technet.microsoft.com/library/security/ms15-081");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Office 2007, 2010, 2013,
2013 RT, 2016, SharePoint Server 2010, SharePoint Server 2013,
Microsoft Office Compatibility Pack, Microsoft Word Web Apps 2010, and
Microsoft Office Web Apps 2013.");
  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:"2015/08/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/08/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/12");

  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:word");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:powerpoint");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:visio");
  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:"cpe", value:"cpe:/a:microsoft:office_compatibility_pack");
  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_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 = 'MS15-081';
kbs = make_list(
  2553313, # Office 2010 SP2 #
  2596650, # Office 2007 SP3 #
  2598244, # Office 2010 SP2 #
  2687409, # Office 2007 SP3 #
  2837610, # Office 2007 SP3 #
  2920691, # Word 2016
  2920708, # Visio 2016
  2965280, # Visio 2007 SP3 #
  2965310, # Office 2010 SP2 SP2 #
  2986254, # Office Compatibility Pack
  3039734, # 2013 SP1 / 2013 RT #
  3039798, # 2013 SP1 / 2013 RT #
  3054816, # 2013 SP1 / 2013 RT #
  3054858, # SharePoint 2013 Word Automation Services SP1 #
  3054876, # Visio 2010 SP2 #
  3054888, # Office 2007 SP3 #
  3054929, # Visio 2013 SP1
  3054960, # SharePoint 2010 Word Automation Services SP2 #
  3054974, # Word Web Apps 2010 SP2 #
  3054991, # Excel 2013 SP1 #
  3054992, # Excel 2007 SP3 #
  3055003, # Word Web Apps 2013 SP1 #
  3055029, # PowerPoint 2013 SP1 #
  3055030, # Word 2013 SP1 #
  3055033, # PowerPoint 2010 SP2 #
  3055037, # Office 2010 SP2 #
  3055039, # Word 2010 SP2 #
  3055044, # Excel 2010 SP2 #
  3055051, # Power Point 2007 SP3 #
  3055052, # Word 2007 SP3 #
  3055053, # Word Viewer
  3055054, # Word Viewer
  3085538  # Office 2016
);

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();

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

  # Get installs of SharePoint
  sps_2010_path = NULL;
  sps_2013_path = NULL;
  sp = NULL;

  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'];
    }
  }

  ######################################################################
  # SharePoint Server 2010 SP2 - Word Automation Service
  # KB: 3054960  File: sword.dll Fix Ver: 14.0.7155.5000
  ######################################################################
  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:"14.0.7155.5000", path:path, bulletin:bulletin, kb:"3054960", product:"Office SharePoint Server 2010 Word Automation Services") == HCF_OLDER)
      vuln = TRUE;
  }

  ######################################################################
  # SharePoint Server 2013 SP1 - Word Automation Services
  # KB: 3054858 File: sword.dll Fix Ver: 15.0.4745.1000
  ######################################################################
  if (sps_2013_path && sps_2013_sp == "1" && sps_2013_edition == "Server")
  {
    path = hotfix_append_path(path:sps_2013_path, value:"WebServices\ConversionServices");
    if (hotfix_check_fversion(file:"sword.dll", version:"15.0.4745.1000", path:path, bulletin:bulletin, kb:"3054858", product:"Office SharePoint Server 2013 Word Automation Services") == HCF_OLDER)
      vuln = TRUE;

  }
}

######################################################################
# Office Web Apps
######################################################################
function perform_owa_checks()
{
  local_var owa_installs, owa_install, owa_2010_path, owa_2010_sp, 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
  # KB: 3054974 File: sword.dll Fix Ver: 14.0.7155.5000
  ######################################################################
  if (owa_2010_path && owa_2013_sp == "2")
  {
    path = hotfix_append_path(path:owa_2010_path, value:"WordConversionService\Bin\Converter");
    if (hotfix_check_fversion(file:"sword.dll", version:"14.0.7155.5000", min_version:"14.0.7015.1000", path:path, bulletin:bulletin, kb:"3054974", product:"Office Web Apps 2010") == HCF_OLDER)
      vuln = TRUE;
  }

  ######################################################################
  # Office Web Apps 2013 SP1
  # KB: 3055003 File: sword.dll Fix Ver: 15.0.4745.1000
  ######################################################################
  if (owa_2013_path && owa_2013_sp == "1")
  {
    path = hotfix_append_path(path:owa_2013_path, value:"WordConversionService\Bin\Converter");
    if (hotfix_check_fversion(file:"xlsrv.dll", version:"15.0.4745.1000", min_version:"15.0.4571.1500", path:path, bulletin:bulletin, kb:"3055003", product:"Office Web Apps 2013") == HCF_OLDER)
      vuln = TRUE;
  }
}

# Generic Office Checks
function perform_office_checks()
{
  local_var office_vers, office_sp, path;
  office_vers = hotfix_check_office_version();
  if (office_vers["12.0"])
  {
    office_sp = get_kb_item("SMB/Office/2007/SP");
    if (!isnull(office_sp) && office_sp == 3)
    {
      path = hotfix_append_path(path:hotfix_get_officecommonfilesdir(officever:"12.0"), value:"Microsoft Shared\Office12");
      if (
        hotfix_check_fversion(file:"vbe6.dll",      version: "6.5.10.55"      , path:path, bulletin:bulletin, kb:"2687409", product:"Microsoft Office 2007 SP3") == HCF_OLDER ||
        hotfix_check_fversion(file:"ieawsdc.dll",   version: "12.0.6035.0"    , path:path, bulletin:bulletin, kb:"2596650", product:"Microsoft Office 2007 SP3") == HCF_OLDER ||
        hotfix_check_fversion(file:"mso.dll",       version: "12.0.6728.5000" , path:path, bulletin:bulletin, kb:"3054888", product:"Microsoft Office 2007 SP3") == HCF_OLDER ||
        hotfix_check_fversion(file:"msptls.dll",    version: "12.0.6727.5000" , path:path, bulletin:bulletin, kb:"2837610", product:"Microsoft Office 2007 SP3") == HCF_OLDER ||
        # This can't go in the generic checks because we must check ppcore.dll
        hotfix_check_fversion(file:"ppcore.dll",    version: "12.0.6727.5000" , path:path, bulletin:bulletin, kb:"3055051", product:"PowerPoint 2007 SP3"      ) == HCF_OLDER
      )
        vuln = TRUE;
    }

  }

  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:"vbe7.dll",     version: "7.00.1637"     , path:path, bulletin:bulletin, kb:"2965310", product:"Microsoft Office 2010 SP2") == HCF_OLDER ||
        hotfix_check_fversion(file:"ieawsdc.dll",  version: "14.0.6101.0"   , path:path, bulletin:bulletin, kb:"2553313", product:"Microsoft Office 2010 SP2") == HCF_OLDER ||
        hotfix_check_fversion(file:"msptls.dll",   version: "14.0.7155.5000", path:path, bulletin:bulletin, kb:"2598244", product:"Microsoft Office 2010 SP2") == HCF_OLDER ||
        hotfix_check_fversion(file:"wwlibcxm.dll", version: "14.0.7155.5001", path:path, bulletin:bulletin, kb:"3055037", product:"Microsoft Office 2010 SP2") == HCF_OLDER
      )
        vuln = TRUE;
    }
  }
  if (office_vers["15.0"])
  {
    office_sp = get_kb_item("SMB/Office/2013/SP");
    if (!isnull(office_sp) && int(office_sp) == 1)
    {
      path = hotfix_append_path(path:hotfix_get_officeprogramfilesdir(officever:"15.0"), value:"Microsoft Office\Office15");
      if (
        hotfix_check_fversion(file:"vbe7.dll",      version: "7.01.1049"      , path:path, bulletin:bulletin, kb:"3039734", product:"Microsoft Office 2013 SP1") == HCF_OLDER ||
        hotfix_check_fversion(file:"ieawsdc.dll",   version: "15.0.4421.0"    , path:path, bulletin:bulletin, kb:"3039798", product:"Microsoft Office 2013 SP1") == HCF_OLDER ||
        hotfix_check_fversion(file:"msptls.dll",    version: "15.0.4745.1000" , path:path, bulletin:bulletin, kb:"3054816", product:"Microsoft Office 2013 SP1") == HCF_OLDER
      )
        vuln = TRUE;
    }
  }
  if (office_vers["16.0"])
  {
    office_sp = get_kb_item("SMB/Office/2016/SP");
    if (!isnull(office_sp) && int(office_sp) == 0)
    {
      path = hotfix_append_path(path:hotfix_get_officeprogramfilesdir(officever:"16.0"), value:"Microsoft Office\root\Office16");
      if (
        hotfix_check_fversion(file:"ieawsdc.dll", version:"15.0.4421.0", channel:"MSI", path:path, bulletin:bulletin, kb:"3085538", product:"Microsoft Office 2016") == HCF_OLDER
      )
        vuln = TRUE;
    }
  }
}

function perform_office_product_checks()
{
  local_var excel_checks, word_checks, ppt_checks, word_vwr_checks;

  local_var installs, install, path; # For DLL checks

  ######################################################################
  # Excel Checks
  ######################################################################
  excel_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6727.5000", "kb", "3054992"),
    "14.0", make_array("sp", 2, "version", "14.0.7155.5000", "kb", "3055044"),
    "15.0", make_array("sp", 1, "version", "15.0.4745.1000", "kb", "3054991")
  );
  if (hotfix_check_office_product(product:"Excel", checks:excel_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # PowerPoint
  ######################################################################
  ppt_checks = make_array(
    "14.0", make_array("sp", 2, "version", "14.0.7155.5000", "kb", "3055033"),
    "15.0", make_array("sp", 1, "version", "15.0.4745.1000", "kb", "3055029")
  );
  if (hotfix_check_office_product(product:"PowerPoint", checks:ppt_checks, bulletin:bulletin))
    vuln = TRUE;

  ######################################################################
  # Word
  ######################################################################
  word_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6727.5000", "kb", "3055052"),
    "14.0", make_array("sp", 2, "version", "14.0.7155.5001", "kb", "3055039"),
    "15.0", make_array("sp", 1, "version", "15.0.4745.1001", "kb", "3055030"),
    "16.0", make_array("sp", 0, "version", "16.0.4288.1000", "channel", "MSI", "kb", "2920691")
  );
  if (hotfix_check_office_product(product:"Word", checks:word_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", "11.0.8420.0", "kb", "3055053")
    );
    if (hotfix_check_office_product(product:"WordViewer", display_name:"Word Viewer", checks:word_vwr_checks, bulletin:bulletin))
      vuln = TRUE;

    foreach install (keys(installs))
    {
      path = installs[install];
      if(hotfix_check_fversion(file:"mso.dll", version: "11.0.8420.0", min_version:"11.0.0.0", path:path, bulletin:bulletin, kb:"3055054", product:"Microsoft Word Viewer") == HCF_OLDER)
        vuln = TRUE;
    }
  }

  ######################################################################
  # Word Compatibility pack
  ######################################################################
  installs = get_kb_list("SMB/Office/WordCnv/*/ProductPath");
  foreach install (keys(installs))
  {
    path = installs[install];
    if(hotfix_check_fversion(path:path, file:"wordcnv.dll", version:"12.0.6727.5000", kb: "2986254", bulletin:bulletin, min_version:"12.0.0.0", product:"Microsoft Office Compatibility Pack") == HCF_OLDER)
      vuln = TRUE;
  }
}

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;

  # Exe checks
  foreach install (keys(installs))
  {
    version = install - 'SMB/Office/Visio/' - '/VisioPath';
    if ("16.0" >!< version && "15.0" >!< version && "14.0" >!< version && "12.0" >!< version)
      continue;
    path = installs[install];
    if ("16.0" >< version && hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"16.0.4288.1000", channel:"MSI", channel_product:"Visio", bulletin:bulletin, kb:"2920708"))
      vuln = TRUE;
    if ("15.0" >< version && hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"15.0.4745.1000", min_version:"15.0.4000.0", bulletin:bulletin, kb:"3054929"))
      vuln = TRUE;
    if ("14.0" >< version && hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"14.0.7155.5000", min_version:"14.0.6500.0", bulletin:bulletin, kb:"3054876"))
      vuln = TRUE;
    if ("12.0" >< version && hotfix_is_vulnerable(path:path, file:"Visio.exe", version:"12.0.6727.5000", min_version:"12.0.6000.0", bulletin:bulletin, kb:"2965280"))
      vuln = TRUE;
  }
}

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');
}

References