Vulnerabilities > CVE-2016-3263 - Information Exposure vulnerability in Microsoft products

047910
CVSS 5.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
local
low complexity
microsoft
CWE-200
nessus
NVD
Published: 2016-10-14
Updated: 2024-11-21

Summary

Graphics Device Interface (aka GDI or GDI+) in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; Office 2007 SP3; Office 2010 SP2; Word Viewer; Skype for Business 2016; Lync 2013 SP1; Lync 2010; Lync 2010 Attendee; and Live Meeting 2007 Console allows remote attackers to bypass the ASLR protection mechanism via unspecified vectors, aka "GDI+ Information Disclosure Vulnerability," a different vulnerability than CVE-2016-3262.

Vulnerable Configurations

Part Description Count
Application
Microsoft
8
OS
Microsoft
11

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

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

Msbulletin

bulletin_idMS16-120
bulletin_url
date2016-10-11T00:00:00
impactRemote Code Execution
knowledgebase_id3192884
knowledgebase_url
severityCritical
titleSecurity Update for Microsoft Graphics Component

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS16-120.NASL
descriptionThe remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - Multiple information disclosure vulnerabilities exist in the Windows GDI component due to improper handling of objects in memory. A local attacker can exploit these vulnerabilities, via a specially crafted application, to predict memory offsets in a call stack and bypass the Address Space Layout Randomization (ASLR) feature, resulting in the disclosure of memory contents. (CVE-2016-3209, CVE-2016-3262, CVE-2016-3263) - An elevation of privilege vulnerability exists in the Windows kernel due to improper handling of objects in memory. A local attacker can exploit this to elevate privileges and execute code in kernel mode. (CVE-2016-3270) - A remote code execution vulnerability exists in the Windows GDI component due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this vulnerability by convincing a user to visit a specially crafted website or open a specially crafted file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2016-3393) - A remote code execution vulnerability exists in the Windows font library due to improper handling of embedded fonts. An unauthenticated, remote attacker can exploit this vulnerability by convincing a user to visit a specially crafted website or open a specially crafted document file, resulting in the execution of arbitrary code in the context of the current user. (CVE-2016-3396) - An elevation of privilege vulnerability exists in the Windows GDI component due to improper handling of objects in memory. A local attacker can exploit this to elevate privileges and execute code in kernel mode. (CVE-2016-7182)
last seen2020-06-01
modified2020-06-02
plugin id94017
published2016-10-12
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/94017
titleMS16-120: Security Update for Microsoft Graphics Component (3192884)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94017);
  script_version("1.9");
  script_cvs_date("Date: 2019/11/14");

  script_cve_id(
    "CVE-2016-3209",
    "CVE-2016-3262",
    "CVE-2016-3263",
    "CVE-2016-3270",
    "CVE-2016-3393",
    "CVE-2016-3396",
    "CVE-2016-7182"
  );
  script_bugtraq_id(
    93377,
    93380,
    93385,
    93390,
    93394,
    93395,
    93403
  );
  script_xref(name:"MSFT", value:"MS16-120");
  script_xref(name:"MSKB", value:"3191203");
  script_xref(name:"MSKB", value:"3192391");
  script_xref(name:"MSKB", value:"3185330");
  script_xref(name:"MSKB", value:"3192392");
  script_xref(name:"MSKB", value:"3185331");
  script_xref(name:"MSKB", value:"3192393");
  script_xref(name:"MSKB", value:"3185332");
  script_xref(name:"MSKB", value:"3192440");
  script_xref(name:"MSKB", value:"3192441");
  script_xref(name:"MSKB", value:"3194798");
  script_xref(name:"MSKB", value:"3188726");
  script_xref(name:"MSKB", value:"3189039");
  script_xref(name:"MSKB", value:"3189040");
  script_xref(name:"MSKB", value:"3188730");
  script_xref(name:"MSKB", value:"3188732");
  script_xref(name:"MSKB", value:"3188731");
  script_xref(name:"MSKB", value:"3188735");
  script_xref(name:"MSKB", value:"3189051");
  script_xref(name:"MSKB", value:"3189052");
  script_xref(name:"MSKB", value:"3188740");
  script_xref(name:"MSKB", value:"3188743");
  script_xref(name:"MSKB", value:"3188741");
  script_xref(name:"MSKB", value:"3118301");
  script_xref(name:"MSKB", value:"3118317");
  script_xref(name:"MSKB", value:"3118394");
  script_xref(name:"MSKB", value:"3118327");
  script_xref(name:"MSKB", value:"3118348");
  script_xref(name:"MSKB", value:"3188397");
  script_xref(name:"MSKB", value:"3188399");
  script_xref(name:"MSKB", value:"3188400");
  script_xref(name:"MSKB", value:"3189647");
  script_xref(name:"MSKB", value:"3193713");
  script_xref(name:"IAVA", value:"2016-A-0278");

  script_name(english:"MS16-120: Security Update for Microsoft Graphics Component (3192884)");
  script_summary(english:"Checks the version of win32k.sys.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing a security update. It is,
therefore, affected by multiple vulnerabilities :

  - Multiple information disclosure vulnerabilities exist in
    the Windows GDI component due to improper handling of
    objects in memory. A local attacker can exploit these
    vulnerabilities, via a specially crafted application, to
    predict memory offsets in a call stack and bypass the
    Address Space Layout Randomization (ASLR) feature,
    resulting in the disclosure of memory contents.
    (CVE-2016-3209, CVE-2016-3262, CVE-2016-3263)

  - An elevation of privilege vulnerability exists in the
    Windows kernel due to improper handling of objects in
    memory. A local attacker can exploit this to elevate
    privileges and execute code in kernel mode.
    (CVE-2016-3270)

  - A remote code execution vulnerability exists in the
    Windows GDI component due to improper handling of
    objects in memory. An unauthenticated, remote attacker
    can exploit this vulnerability by convincing a user to
    visit a specially crafted website or open a specially
    crafted file, resulting in the execution of arbitrary
    code in the context of the current user. (CVE-2016-3393)

  - A remote code execution vulnerability exists in the
    Windows font library due to improper handling of
    embedded fonts. An unauthenticated, remote attacker
    can exploit this vulnerability by convincing a user to
    visit a specially crafted website or open a specially
    crafted document file, resulting in the execution of
    arbitrary code in the context of the current user.
    (CVE-2016-3396)
  
  - An elevation of privilege vulnerability exists in the
    Windows GDI component due to improper handling of
    objects in memory. A local attacker can exploit this to
    elevate privileges and execute code in kernel mode.
    (CVE-2016-7182)");
  script_set_attribute(attribute:"see_also", value:"https://technet.microsoft.com/library/security/MS16-120");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows Vista, 2008, 7,
2008 R2, 2012, 8.1, RT 8.1, 2012 R2, and 10. Additionally, Microsoft
has released a set of patches for Office 2007, Office 2010, Word
Viewer, Skype for Business 2016, Lync 2010, Lync 2013, Live Meeting
2007 Console, .NET Framework 3.0 SP2, .NET Framework 3.5, .NET
Framework 3.5.1, .NET Framework 4.5.2, .NET Framework 4.6, and
Silverlight 5.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-7182");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/10/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/10/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  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:.net_framework");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:skype_for_business");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:lync");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:lync_basic");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:lync_attendee");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:live_meeting_console");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:silverlight");
  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("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl", "office_installed.nasl", "microsoft_lync_server_installed.nasl", "microsoft_net_framework_installed.nasl", "silverlight_detect.nasl", "smb_check_rollup.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_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("misc_func.inc");
include("install_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS16-120';
kbs = make_list(
  "3191203", # Windows Vista / 2008
  "3192391", # Windows 7 / 2008 R2 Security Only
  "3185330", # Windows 7 / 2008 R2 Monthly Rollup
  "3192392", # Windows 8.1 / 2012 R2 Security Only
  "3185331", # Windows 8.1 / 2012 R2 / RT 8.1 Monthly Rollup
  "3192393", # Windows 2012 Security Only
  "3185332", # Windows 2012 Monthly Rollup
  "3192440", # Windows 10 RTM
  "3192441", # Windows 10 1511
  "3194798", # Windows 10 1607
  "3188726", # .NET 3.0 SP2 Security Only
  "3189039", # .NET 4.5.2 Security Only
  "3189040", # .NET 4.6 Security Only
  "3188730", # .NET 3.5.1 Security Only
  "3188732", # .NET 3.5 on Windows 8.1 / 2012 R2 Security Only
  "3188731", # .NET 3.5 on Windows 2012 Security Only
  "3188735", # .NET 3.0 SP2 Monthly Rollup
  "3189051", # .NET 4.5.2 Monthly Rollup
  "3189052", # .NET 4.6 Monthly Rollup
  "3188740", # .NET 3.5.1 Monthly Rollup
  "3188743", # .NET 3.5 on Windows 8.1 / 2012 R2 Monthly Rollup
  "3188741", # .NET 3.5 on Windwos 2012 Monthly Rollup
  "3118301", # Office 2007 SP3
  "3118317", # Office 2010 SP2
  "3118394", # Office Word Viewer
  "3118327", # Skype for Biz 2016
  "3118348", # Lync 2013 SP1
  "3188397", # Lync 2010
  "3188399", # Lync 2010 Attendee (User level)
  "3188400", # Lync 2010 Attendee (Admin level)
  "3189647", # Live Meeting 2007 Console
  "3193713"  # Silverlight 5
);

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");
get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);

productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
if ("Windows 8" >< productname && "8.1" >!< productname)
  audit(AUDIT_OS_SP_NOT_VULN);

if (hotfix_check_sp_range(vista:'2', win7:'1', win8:'0', win81:'0', win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

vuln = 0;

#  "3191203", # Windows Vista / 2008
#  "3192391", # Windows 7 / 2008 R2 Security Only
#  "3185330", # Windows 7 / 2008 R2 Monthly Rollup
#  "3192392", # Windows 8.1 / 2012 R2 Security Only
#  "3185331", # Windows 8.1 / 2012 R2 / RT 8.1 Monthly Rollup
#  "3192393", # Windows 2012 Security Only
#  "3185332", # Windows 2012 Monthly Rollup
#  "3192440", # Windows 10 RTM
#  "3192441", # Windows 10 1511
#  "3194798", # Windows 10 1607
function windows_os_is_vuln()
{
  if (
    #  "3194798", # Windows 10 1607
    smb_check_rollup(os:"10", sp:0, os_build:"14393", rollup_date:"10_2016", bulletin:bulletin, rollup_kb_list:make_list(3194798)) ||

    #  "3192441", # Windows 10 1511
    smb_check_rollup(os:"10", sp:0, os_build:"10586", rollup_date:"10_2016", bulletin:bulletin, rollup_kb_list:make_list(3192441)) ||

    #  "3192440", # Windows 10 RTM
    smb_check_rollup(os:"10", sp:0, os_build:"10240", rollup_date:"10_2016", bulletin:bulletin, rollup_kb_list:make_list(3192440)) ||

    #  "3192392", # Windows 8.1 / 2012 R2 Security Only
    #  "3185331", # Windows 8.1 / 2012 R2 / RT 8.1 Monthly Rollup
    smb_check_rollup(os:"6.3", sp:0, rollup_date:"10_2016", bulletin:bulletin, rollup_kb_list:make_list(3192392, 3185331)) ||

    #  "3192393", # Windows 2012 Security Only
    #  "3185332", # Windows 2012 Monthly Rollup
    smb_check_rollup(os:"6.2", sp:0, rollup_date:"10_2016", bulletin:bulletin, rollup_kb_list:make_list(3192393, 3185332)) ||

    #  "3192391", # Windows 7 / 2008 R2 Security Only
    #  "3185330", # Windows 7 / 2008 R2 Monthly Rollup
    smb_check_rollup(os:"6.1", sp:1, rollup_date:"10_2016", bulletin:bulletin, rollup_kb_list:make_list(3192391, 3185330)) ||

    #  "3191203", # Windows Vista / 2008
    hotfix_is_vulnerable(os:"6.0", sp:2, file:"win32k.sys", version:"6.0.6002.19693", min_version:"6.0.6002.16000", dir:"\system32", bulletin:bulletin, kb:"3191203") ||
    hotfix_is_vulnerable(os:"6.0", sp:2, file:"win32k.sys", version:"6.0.6002.24017", min_version:"6.0.6002.23000", dir:"\system32", bulletin:bulletin, kb:"3191203")
  ) vuln += 1;
}


# "3118301", # Office 2007 SP3
# "3118317", # Office 2010 SP2
# "3118394", # Office Word Viewer
function office_is_vuln()
{
  local_var office_versions, office_sp;
  local_var path;

  office_versions = hotfix_check_office_version();

  # 2010 SP2
  if (office_versions["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_officecommonfilesdir(officever:"14.0"), value:"\Microsoft Shared\Office14");
      if (hotfix_check_fversion(file:"Ogl.dll", version:"14.0.7174.5000", min_version:"14.0.0.0", path:path, bulletin:bulletin, kb:"3118317", product:"Microsoft Office 2010 SP2") == HCF_OLDER)
        vuln++;
    }
  }

  # 2007 SP3
  if (office_versions["12.0"])
  {
    office_sp = get_kb_item("SMB/Office/2007/SP");
    if (office_sp == 3)
    {
      path = hotfix_append_path(path:hotfix_get_officecommonfilesdir(officever:"12.0"), value:"\Microsoft Shared\Office12");
      if (hotfix_check_fversion(file:"Ogl.dll", version:"12.0.6757.5000", min_version:"12.0.0.0", path:path, bulletin:bulletin, kb:'3118301', product:"Microsoft Office 2007 SP3") == HCF_OLDER)
         vuln++;
    }
  }

  # Word Viewer
  if (!empty_or_null(get_kb_list("SMB/Office/WordViewer/*/ProductPath")))
  {
    path = hotfix_append_path(path:hotfix_get_officecommonfilesdir(officever:"11.0"), value:"Microsoft Shared\Office11");
    if (hotfix_check_fversion(file:"gdiplus.dll", version:"11.0.8435.0", min_version:"11.0.0.0", path:path, bulletin:bulletin, kb:'3118394', product:"Microsoft Word Viewer") == HCF_OLDER)
      vuln++;
  }
}

# "3118327", # Skype for Biz 2016
# "3118348", # Lync 2013 SP1
# "3188397", # Lync 2010
# "3188399", # Lync 2010 Attendee (User level)
# "3188400", # Lync 2010 Attendee (Admin level)
# "3189647", # Live Meeting 2007 Console
function lync_is_vuln()
{
  local_var lync_count, lync_installs, lync_install;

  lync_count = get_install_count(app_name:"Microsoft Lync");

  # Nothing to do
  if (int(lync_count) <= 0)
    return FALSE;

  lync_installs = get_installs(app_name:"Microsoft Lync");
  foreach lync_install (lync_installs[1])
  {
    if ("Live Meeting 2007 Console" >< lync_install["Product"])
    {
     if (hotfix_check_fversion(file:"pubutil.dll", version:"8.0.6362.262", min_version:"8.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3189647", product:"Live Meeting 2007 Console") == HCF_OLDER)
       vuln++;
    }
    if (lync_install["version"] =~ "^4\.0\." && "Server" >!< lync_install["Product"])
    {
      # Lync 2010
      if ("Attendee" >!< lync_install["Product"])
      {
        if (hotfix_check_fversion(file:"communicator.exe", version:"4.0.7577.4521", min_version:"4.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3188397", product:"Microsoft Lync 2010") == HCF_OLDER)
          vuln++;
      }
      # Lync 2010 Attendee
      else if ("Attendee" >< lync_install["Product"])
      {
        if ("user level" >< tolower(lync_install["Product"])) # User
        {
          if (hotfix_check_fversion(file:"MeetingJoinAxAOC.DLL", version:"4.0.7577.4521", min_version:"4.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3188399", product:lync_install["Product"]) == HCF_OLDER)
            vuln++;
        }
        else # Admin
        {
          if (hotfix_check_fversion(file:"MeetingJoinAxAOC.DLL", version:"4.0.7577.4521", min_version:"4.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3188400", product:lync_install["Product"]) == HCF_OLDER)
            vuln++;
        }
      }
    }
    # Lync 2013
    else if (lync_install["version"] =~ "^15\.0\." && "Server" >!< lync_install["Product"])
    {
      if (hotfix_check_fversion(file:"Lync.exe", version:"15.0.4867.1000", min_version:"15.0.4700.1000", path:lync_install["path"], bulletin:bulletin, kb:"3118348", product:"Microsoft Lync 2013 (Skype for Business)") == HCF_OLDER)
        vuln++;
    }
    # Skype for Business 2016
    else if (lync_install["version"] =~ "^16\.0\." && "Server" >!< lync_install["Product"])
    {
      # Office 365 Deferred channel
      if (lync_install['Channel'] == "Deferred")
        if (hotfix_check_fversion(file:"Lync.exe", version:"16.0.6965.2092", channel:"Deferred", channel_product:"Lync", path:lync_install["path"], bulletin:bulletin, kb:"3118327", product:"Skype for Business 2016") == HCF_OLDER)
          vuln++;

      # Office 365 First Release for Deferred channel
      if (lync_install['Channel'] == "First Release for Deferred")
        if (hotfix_check_fversion(file:"Lync.exe", version:"16.0.6741.2081", channel:"First Release for Deferred", channel_product:"Lync", path:lync_install["path"], bulletin:bulletin, kb:"3118327", product:"Skype for Business 2016") == HCF_OLDER)
          vuln++;

      # Office 365 Current channel
      if (lync_install['Channel'] == "Current")
        if (hotfix_check_fversion(file:"Lync.exe", version:"16.0.7369.2038", channel:"Current", channel_product:"Lync", path:lync_install["path"], bulletin:bulletin, kb:"3118327", product:"Skype for Business 2016") == HCF_OLDER)
          vuln++;

      # KB
      if (lync_install['Channel'] == "MSI" || empty_or_null(lync_install['Channel']))
        if (hotfix_check_fversion(file:"Lync.exe", version:"16.0.4444.1000", channel:"MSI", channel_product:"Lync", path:lync_install["path"], bulletin:bulletin, kb:"3118327", product:"Skype for Business 2016") == HCF_OLDER)
          vuln++;
    }
  }
}


# "3188726", # .NET 3.0 SP2 Security Only
# "3189039", # .NET 4.5.2 Security Only
# "3189040", # .NET 4.6 Security Only
# "3188730", # .NET 3.5.1 Security Only
# "3188732", # .NET 3.5 on Windows 8.1 / 2012 R2 Security Only
# "3188731", # .NET 3.5 on Windows 2012 Security Only
# "3188735", # .NET 3.0 SP2 Monthly Rollup
# "3189051", # .NET 4.5.2 Monthly Rollup
# "3189052", # .NET 4.6 Monthly Rollup
# "3188740", # .NET 3.5.1 Monthly Rollup
# "3188743", # .NET 3.5 on Windows 8.1 / 2012 R2 Monthly Rollup
# "3188741", # .NET 3.5 on Windwos 2012 Monthly Rollup
function dotnet_is_vuln()
{
  local_var dotnet_452_installed, dotnet_46_installed, dotnet_461_installed, dotnet_35_installed;
  local_var ver, missing, count, installs, install;


  # Determine if .NET 4.5.2 or 4.6 is installed
  dotnet_452_installed = FALSE;
  dotnet_46_installed  = FALSE;
  dotnet_35_installed  = FALSE;

  count = get_install_count(app_name:'Microsoft .NET Framework');
  if (count > 0)
  {
    installs = get_installs(app_name:'Microsoft .NET Framework');
    foreach install(installs[1])
    {
      ver = install["version"];
      if (ver == "4.6") dotnet_46_installed = TRUE;
      if (ver == "4.5.2") dotnet_452_installed = TRUE;
      if (ver == "3.5") dotnet_35_installed = TRUE;
    }
  }

  # "3188726", # .NET 3.0 SP2 Security Only
  # "3188735", # .NET 3.0 SP2 Monthly Rollup
  # Only on Vista / 2008
  missing = 0;
  missing += hotfix_is_vulnerable(os:"6.0", sp:2, file:"wpfgfx_v0300.dll", version:"3.0.6920.8720", min_version:"3.0.6920.0", dir:"\Microsoft.NET\Framework\v3.0\WPF");
  if (missing > 0) hotfix_add_report(bulletin:bulletin, kb:"3188726");
  vuln += missing;

  if (dotnet_35_installed)
  {
    # "3188730", # .NET 3.5.1 Security Only
    # "3188740", # .NET 3.5.1 Monthly Rollup
    # Only on 7 / 2008 R2
    missing = 0;
    missing += hotfix_is_vulnerable(os:"6.1", sp:1, file:"wpfgfx_v0300.dll", version:"3.0.6920.8720", dir:"\Microsoft.NET\Framework\v3.0\WPF");
    if (missing > 0) hotfix_add_report(bulletin:bulletin, kb:"3188730");
    vuln += missing;

    # "3188731", # .NET 3.5 on Windows 2012 Security Only
    # "3188741", # .NET 3.5 on Windwos 2012 Monthly Rollup
    # Only on 2012
    missing = 0;
    missing += hotfix_is_vulnerable(os:"6.2", sp:0, file:"wpfgfx_v0300.dll", version:"3.0.6920.8720", dir:"\Microsoft.NET\Framework\v3.0\WPF");
    if (missing > 0) hotfix_add_report(bulletin:bulletin, kb:"3188731");
    vuln += missing;

    # "3188732", # .NET 3.5 on Windows 8.1 / 2012 R2 Security Only
    # "3188743", # .NET 3.5 on Windows 8.1 / 2012 R2 Monthly Rollup
    # Only on 8.1 / 2012 R2
    missing = 0;
    missing += hotfix_is_vulnerable(os:"6.3", sp:0, file:"wpfgfx_v0300.dll", version:"3.0.6920.8720", dir:"\Microsoft.NET\Framework\v3.0\WPF");
    if (missing > 0) hotfix_add_report(bulletin:bulletin, kb:"3188732");
    vuln += missing;
  }


  if (dotnet_452_installed)
  {
    # "3189039", # .NET 4.5.2 Security Only
    # "3189051", # .NET 4.5.2 Monthly Rollup
    # Only on Vista / 2008
    missing = 0;
    missing += hotfix_is_vulnerable(os:"6.0", sp:2, file:"wpfgfx_v0400.dll", version:"4.0.30319.36367", dir:"\Microsoft.NET\Framework\v4.0.30319");
    if (missing > 0) hotfix_add_report(bulletin:bulletin, kb:"3189039");
    vuln += missing;
  }

  if (dotnet_46_installed)
  {
    # "3189040", # .NET 4.6 Security Only
    # "3189052", # .NET 4.6 Monthly Rollup
    # Only on Vista / 2008
    missing = 0;
    missing += hotfix_is_vulnerable(os:"6.0", sp:2, file:"wpfgfx_v0400.dll", version:"4.6.1085.0", min_version:"4.6.0.0", dir:"\Microsoft.NET\Framework\v4.0.30319");
    if (missing > 0) hotfix_add_report(bulletin:bulletin, kb:"3189040");
    vuln += missing;
  }

}

# "3193713"  # Silverlight 5
function silverlight_is_vuln()
{
  local_var silver, path, report, fix;
  silver = get_kb_item("SMB/Silverlight/Version");
  if (!isnull(silver) && silver =~ "^5\.")
  {
    fix = "5.1.50901.0";
    if (ver_compare(ver:silver, fix:fix) == -1)
    {
      path = get_kb_item("SMB/Silverlight/Path");
      if (isnull(path)) path = 'n/a';

      report =
        '\n  Path              : ' + path +
        '\n  Installed version : ' + silver +
        '\n  Fixed version     : ' + fix +
        '\n';
      hotfix_add_report(report, bulletin:bulletin, kb:"3193713");
      vuln++;
    }
  }
}

dotnet_is_vuln();
office_is_vuln();
lync_is_vuln();
silverlight_is_vuln();
windows_os_is_vuln();

if (vuln > 0)
{
  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, hotfix_get_audit_report());
}

References