Vulnerabilities > CVE-2016-7298 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Office and Word 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-119
critical
nessus

Summary

Microsoft Office 2007 SP3, Office 2010 SP2, Word Viewer, Office for Mac 2011, and Office 2016 for Mac allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."

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_idMS16-148
bulletin_url
date2016-12-13T00:00:00
impactRemote Code Execution
knowledgebase_id3204068
knowledgebase_url
severityCritical
titleSecurity Update for Microsoft Office

Nessus

  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_MS16-148_OFFICE.NASL
    descriptionThe Microsoft Office application installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - An information disclosure vulnerability exists in the Graphics Device Interface (GDI) component due to improper handling of objects in memory. A local attacker can exploit this, via a specially crafted application, to circumvent the Address Space Layout Randomization (ASLR) feature and disclose sensitive memory information. (CVE-2016-7257) - Multiple remote code execution vulnerabilities exist in Microsoft Office software due to a failure to properly handle objects in memory. An unauthenticated, 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-2016-7263, CVE-2016-7298) - Multiple information disclosure vulnerabilities exist in Microsoft Office software due to an out-of-bounds memory read error. An unauthenticated, remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted Office file, resulting in the disclosure of memory contents. (CVE-2016-7264, CVE-2016-7268, CVE-2016-7276, CVE-2016-7290, CVE-2016-7291) - An arbitrary command execution vulnerability exists in Microsoft Office due to improper validation of registry settings when running embedded content. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted document file multiple times, resulting in a bypass of security restrictions and the execution of arbitrary commands. (CVE-2016-7266) - An elevation of privilege vulnerability exists in the Microsoft AutoUpdate (MAU) application due to improper validation of updates. A local attacker can exploit this by placing a specially crafted application in a location used by the update application, resulting in the ability to execute arbitrary code in a privileged context. (CVE-2016-7300)
    last seen2020-06-01
    modified2020-06-02
    plugin id95810
    published2016-12-14
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/95810
    titleMS16-148: Security Update for Microsoft Office (3204068) (macOS)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(95810);
      script_version("1.7");
      script_cvs_date("Date: 2019/11/13");
    
      script_cve_id(
        "CVE-2016-7257",
        "CVE-2016-7263",
        "CVE-2016-7264",
        "CVE-2016-7266",
        "CVE-2016-7268",
        "CVE-2016-7276",
        "CVE-2016-7290",
        "CVE-2016-7291",
        "CVE-2016-7298",
        "CVE-2016-7300"
      );
      script_bugtraq_id(
        94662,
        94668,
        94670,
        94671,
        94672,
        94720,
        94755,
        94769,
        94784
      );
      script_xref(name:"MSFT", value:"MS16-148");
      script_xref(name:"IAVA", value:"2016-A-0345");
      script_xref(name:"MSKB", value:"3198800");
      script_xref(name:"MSKB", value:"3198808");
    
      script_name(english:"MS16-148: Security Update for Microsoft Office (3204068) (macOS)");
      script_summary(english:"Checks the version of Microsoft Office.");
    
      script_set_attribute(attribute:"synopsis", value:
    "An application installed on the remote macOS or Mac OS X host is
    affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The Microsoft Office application installed on the remote macOS or Mac
    OS X host is missing a security update. It is, therefore, affected by
    multiple vulnerabilities :
    
      - An information disclosure vulnerability exists in the
        Graphics Device Interface (GDI) component due to
        improper handling of objects in memory. A local attacker
        can exploit this, via a specially crafted application,
        to circumvent the Address Space Layout Randomization
        (ASLR) feature and disclose sensitive memory
        information. (CVE-2016-7257)
    
      - Multiple remote code execution vulnerabilities exist in
        Microsoft Office software due to a failure to properly
        handle objects in memory. An unauthenticated, 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-2016-7263,
        CVE-2016-7298)
    
      - Multiple information disclosure vulnerabilities exist in
        Microsoft Office software due to an out-of-bounds memory
        read error. An unauthenticated, remote attacker can
        exploit these vulnerabilities by convincing a user to
        open a specially crafted Office file, resulting in the
        disclosure of memory contents. (CVE-2016-7264,
        CVE-2016-7268, CVE-2016-7276, CVE-2016-7290,
        CVE-2016-7291)
    
      - An arbitrary command execution vulnerability exists in
        Microsoft Office due to improper validation of registry
        settings when running embedded content. An
        unauthenticated, remote attacker can exploit this by
        convincing a user to open a specially crafted document
        file multiple times, resulting in a bypass of security
        restrictions and the execution of arbitrary commands.
        (CVE-2016-7266)
    
      - An elevation of privilege vulnerability exists in the
        Microsoft AutoUpdate (MAU) application due to improper
        validation of updates. A local attacker can exploit this
        by placing a specially crafted application in a location
        used by the update application, resulting in the ability
        to execute arbitrary code in a privileged context.
        (CVE-2016-7300)");
      script_set_attribute(attribute:"see_also", value:"https://technet.microsoft.com/library/security/MS16-148");
      script_set_attribute(attribute:"solution", value:
    "Microsoft has released a set of patches for Microsoft Office for Mac
    2011, Microsoft Office 2016 for Mac, Microsoft Excel for Mac 2011,
    Microsoft Excel 2016 for Mac, Microsoft Word for Mac 2011, Microsoft
    Word 2016 for Mac, and Microsoft Auto Updater for Mac.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-7298");
    
      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:"2016/12/13");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/12/13");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/12/14");
    
      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_for_mac");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel_for_mac");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:auto_updater_for_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) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("macosx_office_installed.nbin");
      script_require_keys("Host/MacOSX/Version");
      script_require_ports("installed_sw/Office for Mac 2011", "installed_sw/Microsoft Outlook", "installed_sw/Microsoft Excel", "installed_sw/Microsoft Word", "installed_sw/Microsoft PowerPoint", "installed_sw/Microsoft OneNote");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    include("install_func.inc");
    
    os = get_kb_item("Host/MacOSX/Version");
    if (!os) audit(AUDIT_OS_NOT, "Mac OS X");
    
    # Office 2011
    apps = make_list(
      "Office for Mac 2011",
      "Microsoft Outlook",
      "Microsoft Excel",
      "Microsoft Word",
      "Microsoft PowerPoint",
      "Microsoft OneNote"
    );
    
    report = "";
    
    foreach app (apps)
    {
      installs = get_installs(app_name:app);
      if (isnull(installs[1])) continue;
      foreach install (installs[1])
      {
        version = install['version'];
        path    = install['path'];
        app_label = app;
        if (version =~ "^14\.")
        {
          if (app !~ " for Mac 2011$") app_label += " for Mac 2011";
          fix = '14.7.1';
        }
        else
        {
          if (version =~ "^15\.") app_label += " for Mac 2016";
          fix = '15.29';
          fix_disp = '15.29 (161209)';
        }
    
        if (ver_compare(ver:version, fix:fix, strict:FALSE) < 0)
        {
          report +=
            '\n  Product           : ' + app_label +
            '\n  Installed version : ' + version;
    
          if (!empty_or_null(fix_disp))
          {
            report += '\n  Fixed version     : ' + fix_disp;
            fix_disp = '';
          }
          else report += '\n  Fixed version     : ' + fix;
    
          os = get_kb_item("Host/MacOSX/Version");
    
          if (os =~ "^Mac OS X 10\.[0-9](\.|$)" && app_label =~ " for Mac 2016$")
            report += '\n  Note              : Update will require Mac OS X 10.10.0 or later.\n';
          else report += '\n';
        }
      }
    }
    
    # Report findings.
    if (!empty(report))
    {
      if (report_verbosity > 0) security_hole(port:0, extra:report);
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS16-148.NASL
    descriptionThe Microsoft Office application or Microsoft Office Services and Web Apps installed on the remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - An arbitrary command execution vulnerability exists in Microsoft Office due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted Office file, resulting in a bypass of security restrictions and the execution of arbitrary commands. (CVE-2016-7262) - Multiple remote code execution vulnerabilities exist in Microsoft Office software due to a failure to properly handle objects in memory. An unauthenticated, 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-2016-7263, CVE-2016-7277, CVE-2016-7289, CVE-2016-7298) - Multiple information disclosure vulnerabilities exist in Microsoft Office software due to an out-of-bounds memory read error. An unauthenticated, remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted Office file, resulting in the disclosure of memory contents. (CVE-2016-7264, CVE-2016-7265, CVE-2016-7268, CVE-2016-7276, CVE-2016-7290, CVE-2016-7291) - An arbitrary command execution vulnerability exists in Microsoft Office due to improper validation of registry settings when running embedded content. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted document file multiple times, resulting in a bypass of security restrictions and the execution of arbitrary commands. (CVE-2016-7266) - A security bypass vulnerability exists in Microsoft Office due to improper parsing of file formats. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted Office file, resulting in a bypass security restrictions. (CVE-2016-7267) - An elevation of privilege vulnerability exists in Microsoft Office due to improper validation before loading libraries. A local attacker can exploit this, via a specially crafted application, to gain elevated privileges. (CVE-2016-7275)
    last seen2020-06-01
    modified2020-06-02
    plugin id95811
    published2016-12-14
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/95811
    titleMS16-148: Security Update for Microsoft Office (3204068)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(95811);
      script_version("1.6");
      script_cvs_date("Date: 2019/11/13");
    
      script_cve_id(
        "CVE-2016-7262",
        "CVE-2016-7263",
        "CVE-2016-7264",
        "CVE-2016-7265",
        "CVE-2016-7266",
        "CVE-2016-7267",
        "CVE-2016-7268",
        "CVE-2016-7275",
        "CVE-2016-7276",
        "CVE-2016-7277",
        "CVE-2016-7289",
        "CVE-2016-7290",
        "CVE-2016-7291",
        "CVE-2016-7298"
      );
      script_bugtraq_id(
        94662,
        94664,
        94665,
        94668,
        94670,
        94671,
        94672,
        94715,
        94718,
        94720,
        94721,
        94769
      );
      script_xref(name:"MSFT", value:"MS16-148");
      script_xref(name:"MSKB", value:"3128020");
      script_xref(name:"MSKB", value:"2883033");
      script_xref(name:"MSKB", value:"3127986");
      script_xref(name:"MSKB", value:"3127968");
      script_xref(name:"MSKB", value:"3128029");
      script_xref(name:"MSKB", value:"3127892");
      script_xref(name:"MSKB", value:"3128037");
      script_xref(name:"MSKB", value:"3128019");
      script_xref(name:"MSKB", value:"3128025");
      script_xref(name:"MSKB", value:"3128022");
      script_xref(name:"MSKB", value:"3128024");
      script_xref(name:"MSKB", value:"3128023");
      script_xref(name:"MSKB", value:"3128016");
      script_xref(name:"MSKB", value:"3128008");
      script_xref(name:"MSKB", value:"3128026");
      script_xref(name:"MSKB", value:"3118380");
      script_xref(name:"MSKB", value:"3128032");
      script_xref(name:"MSKB", value:"2889841");
      script_xref(name:"MSKB", value:"3128034");
      script_xref(name:"MSKB", value:"3114395");
      script_xref(name:"MSKB", value:"3128035");
      script_xref(name:"MSKB", value:"3128044");
      script_xref(name:"MSKB", value:"3128043");
      script_xref(name:"MSKB", value:"3127995");
      script_xref(name:"IAVA", value:"2016-A-0345");
    
      script_name(english:"MS16-148: Security Update for Microsoft Office (3204068)");
      script_summary(english:"Checks the file versions.");
    
      script_set_attribute(attribute:"synopsis", value:
    "An application installed on the remote host is affected by multiple
    vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The Microsoft Office application or Microsoft Office Services and Web
    Apps installed on the remote Windows host is missing a security
    update. It is, therefore, affected by multiple vulnerabilities :
    
      - An arbitrary command execution vulnerability exists in
        Microsoft Office due to improper validation of
        user-supplied input. An unauthenticated, remote attacker
        can exploit this by convincing a user to open a
        specially crafted Office file, resulting in a bypass of
        security restrictions and the execution of arbitrary
        commands. (CVE-2016-7262)
    
      - Multiple remote code execution vulnerabilities exist in
        Microsoft Office software due to a failure to properly
        handle objects in memory. An unauthenticated, 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-2016-7263,
        CVE-2016-7277, CVE-2016-7289, CVE-2016-7298)
    
      - Multiple information disclosure vulnerabilities exist in
        Microsoft Office software due to an out-of-bounds memory
        read error. An unauthenticated, remote attacker can
        exploit these vulnerabilities by convincing a user to
        open a specially crafted Office file, resulting in the
        disclosure of memory contents. (CVE-2016-7264,
        CVE-2016-7265, CVE-2016-7268, CVE-2016-7276,
        CVE-2016-7290, CVE-2016-7291)
    
      - An arbitrary command execution vulnerability exists in
        Microsoft Office due to improper validation of registry
        settings when running embedded content. An
        unauthenticated, remote attacker can exploit this by
        convincing a user to open a specially crafted document
        file multiple times, resulting in a bypass of security
        restrictions and the execution of arbitrary commands.
        (CVE-2016-7266)
    
      - A security bypass vulnerability exists in Microsoft
        Office due to improper parsing of file formats. An
        unauthenticated, remote attacker can exploit this by
        convincing a user to open a specially crafted Office
        file, resulting in a bypass security restrictions.
        (CVE-2016-7267)
    
      - An elevation of privilege vulnerability exists in
        Microsoft Office due to improper validation before
        loading libraries. A local attacker can exploit this,
        via a specially crafted application, to gain elevated
        privileges. (CVE-2016-7275)");
      script_set_attribute(attribute:"see_also", value:"https://technet.microsoft.com/library/security/MS16-148");
      script_set_attribute(attribute:"solution", value:
    "Microsoft has released a set of patches for Microsoft Office 2007,
    2010, 2013, 2013 RT, and 2016; Microsoft Excel 2007, 2010, 2013,
    2013 RT, and 2016; Microsoft Word 2007, 2010; Microsoft Publisher 2010
    Office Compatibility Pack; Excel Viewer; Word Viewer; Microsoft
    SharePoint Server 2007 and 2010; and Office Web Apps 2010.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-7298");
    
      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:"2016/12/13");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/12/13");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/12/14");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel_viewer");
      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:publisher");
      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 = 'MS16-148';
    kbs = make_list(
      '3128020', # Office 2007 SP3
      '2883033',
      '3127986', # Office 2016
      '3127968', # Office 2013 SP1
      '3128029', # SharePoint Excel Services 2010 SP2
      '3127892', # SharePoint Excel Services 2007 SP3
      '3128037', # Excel 2010 SP2
      '3128019', # Excel 2007 SP3
      '3128025', # Word 2007 SP3
      '3128022', # Office Compatibility Pack SP3
      '3128024',
      '3128023', # Excel Viewer
      '3128016', # Excel 2016
      '3128008', # Excel 2013 SP1
      '3128026', # SharePoint Word Automation Services 2010 SP2
      '3118380', # Office 2010 SP2
      '3128032',
      '2889841',
      '3128034', # Word 2010 SP2
      '3114395', # Publisher 2010 SP2
      '3128035', # Office Web Apps Server 2010 SP2
      '3128044', # Word Viewer
      '3128043',
      '3127995'
    );
    
    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();
    
    vuln = FALSE;
    
    ######################################################################
    # 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"];
          }
        }
      }
    
      ######################################################################
      # 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:"14.0.7177.5000", min_version:"14.0.7015.1000", path:path, bulletin:bulletin, kb:"3128035", product:"Office Web Apps 2010") == HCF_OLDER)
          vuln = TRUE;
      }
    }
    
    ######################################################################
    # SharePoint
    ######################################################################
    function perform_sharepoint_checks()
    {
      local_var sps_2010_path, sps_2010_sp, sps_2010_edition;
      local_var sps_2007_path, sps_2007_sp, sps_2007_edition;
      local_var installs, install, path, commonfiles;
    
      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"] == "2007")
        {
          sps_2007_path = install['path'];
          sps_2007_sp = install['SP'];
          sps_2007_edition = install['Edition'];
        }
      }
    
      commonfiles = hotfix_get_commonfilesdir();
      if (!commonfiles) commonfiles = hotfix_get_commonfilesdirx86();
    
      ######################################################################
      # SharePoint Server 2010 SP2 - Word Automation Services / Excel Services
      ######################################################################
      if (sps_2010_path && sps_2010_sp == "2" && sps_2010_edition == "Server")
      {
        path = hotfix_append_path(path:sps_2010_path, value:"WebServices\WordServer\Core");
        if (hotfix_check_fversion(file:"sword.dll", version:"14.0.7177.5000", path:path, bulletin:bulletin, kb:"3128026", product:"Office SharePoint Server 2010 Word Automation Services") == HCF_OLDER)
          vuln = TRUE;
    
        path = hotfix_append_path(path:sps_2010_path, value:"Bin");
        if (hotfix_check_fversion(file:"xlsrv.dll", version:"14.0.7177.5000", path:path, bulletin:bulletin, kb:"3128029", product:"Office SharePoint Server 2010 Excel Services") == HCF_OLDER)
          vuln = TRUE;
      }
    
      ######################################################################
      # SharePoint Server 2007 SP3 - Excel Services
      ######################################################################
      if (sps_2007_path && sps_2007_sp == "3" && sps_2007_edition == "Server")
      {
        path = hotfix_append_path(path:sps_2007_path, value:"Bin");
        if (hotfix_check_fversion(file:"xlsrv.dll", version:"12.0.6762.5000", path:path, bulletin:bulletin, kb:"3127892", product:"Office SharePoint Server 2007 Excel Services") == HCF_OLDER)
          vuln = TRUE;
      }
    }
     
    function perform_office_checks()
    {
      local_var office_vers, office_sp, common_path, path, prod, kb;
      office_vers = hotfix_check_office_version();
    
      ######################################################################
      # Office 2007 Checks
      ######################################################################
      if (office_vers["12.0"])
      {
        office_sp = get_kb_item("SMB/Office/2007/SP");
        if (!isnull(office_sp) && office_sp == 3)
        {
          prod = "Microsoft Office 2007 SP3";
          common_path = hotfix_get_officecommonfilesdir(officever:"12.0");
    
          path = hotfix_append_path(path:common_path, value:"Microsoft Shared\Office12");
          if (
            hotfix_check_fversion(file:"mso.dll", version:"12.0.6762.5000", path:path, bulletin:bulletin, kb:"3128020", product:prod) == HCF_OLDER ||
            hotfix_check_fversion(file:"usp10.dll", version:"1.0626.6002.24030", path:path, bulletin:bulletin, kb:"2883033", product:prod) == HCF_OLDER
          ) vuln = TRUE;
        }
      }
    
      ######################################################################
      # Office 2010 Checks
      ######################################################################
      if (office_vers["14.0"])
      {
        office_sp = get_kb_item("SMB/Office/2010/SP");
        if (!isnull(office_sp) && office_sp == 2)
        {
          prod = "Microsoft Office 2010 SP2";
          common_path = hotfix_get_officecommonfilesdir(officever:"14.0");
    
          path = hotfix_append_path(path:common_path, value:"Microsoft Shared\Office14");
          if (
            hotfix_check_fversion(file:"mso.dll", version:"14.0.7177.5000", path:path, bulletin:bulletin, kb:"3118380", product:prod) == HCF_OLDER ||
            hotfix_check_fversion(file:"wwlibcxm.dll", version:"14.0.7177.5000", path:path, bulletin:bulletin, kb:"3128032", product:prod) == HCF_OLDER ||
            hotfix_check_fversion(file:"usp10.dll", version:"1.0626.7601.23585", path:path, bulletin:bulletin, kb:"2889841", product:prod) == HCF_OLDER
          ) vuln = TRUE;
        }
      }
    
      ######################################################################
      # Office 2013 Checks
      ######################################################################
      if (office_vers["15.0"])
      {
        office_sp = get_kb_item("SMB/Office/2013/SP");
        if (!isnull(office_sp) && int(office_sp) == 1)
        {
          prod = "Microsoft Office 2013 SP1";
          common_path = hotfix_get_officecommonfilesdir(officever:"15.0");
    
          path = hotfix_append_path(path:common_path, value:"Microsoft Shared\Office15");
          if (hotfix_check_fversion(file:"msointl.dll", version:"15.0.4869.1000", path:path, bulletin:bulletin, kb:"3127968", product:prod) == HCF_OLDER)
            vuln = TRUE;
        }
      }
    
      ######################################################################
      # Office 2016 Checks
      ######################################################################
      if (office_vers["16.0"])
      {
        office_sp = get_kb_item("SMB/Office/2016/SP");
        if (!isnull(office_sp) && int(office_sp) == 0)
        {
          prod = "Microsoft Office 2016";
          path = hotfix_append_path(path:hotfix_get_officecommonfilesdir(officever:"16.0"), value:"Microsoft Shared\Office16");
          if (hotfix_check_fversion(file:"msointl.dll", version:"16.0.4471.1000", path:path, bulletin:bulletin, kb:"3127986", product:prod) == HCF_OLDER)
            vuln = TRUE;
        }
      }
    }
    
    function perform_office_product_checks()
    {
      local_var excel_checks, word_checks, onenote_checks, outlook_checks, ppt_vwr_checks, excel_compat_checks,excel_vwr_checks,word_vwr_checks,powerpoint_checks,publisher_checks;
    
      local_var installs, install, path; # For DLL checks
    
      ######################################################################
      # Excel Checks
      ######################################################################
      excel_checks = make_array(
        "12.0", make_array("sp", 3, "version", "12.0.6762.5000", "kb", "3128019"),
        "14.0", make_array("sp", 2, "version", "14.0.7177.5000", "kb", "3128037"),
        "15.0", make_array("sp", 1, "version", "15.0.4885.1000", "kb", "3128008"),
        "16.0", make_nested_list(
          make_array("sp", 0, "version", "16.0.4471.1000", "channel", "MSI", "kb", "3128016"),
          make_array("sp", 0, "version", "16.0.6741.2098", "channel", "Deferred", "kb", "3128016"),
          make_array("sp", 0, "version", "16.0.6965.2115", "channel", "Deferred", "channel_version", "1605", "kb", "3128016"),
          make_array("sp", 0, "version", "16.0.7369.2095", "channel", "First Release for Deferred", "kb", "3128016"),
          make_array("sp", 0, "version", "16.0.7571.2075", "channel", "Current", "kb", "3128016")
        )
      );
      if (hotfix_check_office_product(product:"Excel", checks:excel_checks, bulletin:bulletin))
        vuln = TRUE;
    
      ######################################################################
      # Word Checks
      ######################################################################
      word_checks = make_array(
        "12.0", make_array("sp", 3, "version", "12.0.6762.5000", "kb", "3128025"),
        "14.0", make_array("sp", 2, "version", "14.0.7177.5000", "kb", "3128034")
      );
      if (hotfix_check_office_product(product:"Word", checks:word_checks, bulletin:bulletin))
        vuln = TRUE;
    
      ######################################################################
      # Publisher Checks
      ######################################################################
      publisher_checks = make_array(
        "14.0", make_array("sp", 2, "version", "14.0.7162.5000", "kb", "3114395")
      );
      if (hotfix_check_office_product(product:"Publisher", checks:publisher_checks, bulletin:bulletin))
        vuln = TRUE;
    
      ######################################################################
      # Excel Viewer
      ######################################################################
      excel_vwr_checks = make_array(
        "12.0", make_array("sp", 3, "version", "12.0.6762.5000", "kb", "3128023")
      );
      if (hotfix_check_office_product(product:"ExcelViewer", display_name:"Excel Viewer", checks:excel_vwr_checks, bulletin:bulletin))
        vuln = TRUE;
    
      ######################################################################
      # Word Viewer
      ######################################################################
      word_vwr_checks = make_array(
        "11.0", make_array("version", "11.0.8438.0", "kb", "3128044")
      );
      if (hotfix_check_office_product(product:"WordViewer", display_name:"Word Viewer", checks:word_vwr_checks, bulletin:bulletin))
        vuln = TRUE;
    
      ######################################################################
      # Excel Compatibility pack
      ######################################################################
      excel_compat_checks = make_array(
        "12.0", make_array("version", "12.0.6762.5000", "kb", "3128022")
      );
      if (hotfix_check_office_product(product:"ExcelCnv", display_name:"Office Compatibility Pack SP3", checks:excel_compat_checks, bulletin:bulletin))
        vuln = TRUE;
    
      ######################################################################
      # Word Compatibility pack
      ######################################################################
      installs = get_kb_list("SMB/Office/WordCnv/*/ProductPath");
      if (!isnull(installs))
      {
        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:"wrd12cnv.dll", version:"12.0.6762.5000", kb:"3128024", bulletin:bulletin, min_version:"12.0.0.0", product:"Microsoft Office Compatibility Pack") == HCF_OLDER)
            vuln = TRUE;
        }
      }
    }
    
    perform_office_checks();
    perform_office_product_checks();
    perform_owa_checks();
    perform_sharepoint_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');
    }