Vulnerabilities > CVE-2014-0322 - Use After Free vulnerability in Microsoft Internet Explorer 10/9

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(72930);
  script_version("1.21");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id(
    "CVE-2014-0297",
    "CVE-2014-0298",
    "CVE-2014-0299",
    "CVE-2014-0302",
    "CVE-2014-0303",
    "CVE-2014-0304",
    "CVE-2014-0305",
    "CVE-2014-0306",
    "CVE-2014-0307",
    "CVE-2014-0308",
    "CVE-2014-0309",
    "CVE-2014-0311",
    "CVE-2014-0312",
    "CVE-2014-0313",
    "CVE-2014-0314",
    "CVE-2014-0321",
    "CVE-2014-0322",
    "CVE-2014-0324",
    "CVE-2014-4112"
  );
  script_bugtraq_id(
    65551,
    66023,
    66025,
    66026,
    66027,
    66028,
    66029,
    66030,
    66031,
    66032,
    66033,
    66034,
    66035,
    66036,
    66037,
    66038,
    66039,
    66040,
    70266
  );
  script_xref(name:"CERT", value:"732479");
  script_xref(name:"EDB-ID", value:"32851");
  script_xref(name:"EDB-ID", value:"32438");
  script_xref(name:"EDB-ID", value:"32904");
  script_xref(name:"MSFT", value:"MS14-012");
  script_xref(name:"MSKB", value:"2925418");

  script_name(english:"MS14-012: Cumulative Security Update for Internet Explorer (2925418)");
  script_summary(english:"Checks version of Mshtml.dll");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a web browser that is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is missing Internet Explorer (IE) Security Update
2925418.

The installed version of IE is affected by multiple privilege
escalation and memory corruption vulnerabilities that could allow an
attacker to execute arbitrary code on the remote host. Additionally,
the installed version of IE is affected by an information disclosure
vulnerability.");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-14-030/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-14-031/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-14-032/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-14-033/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-14-034/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-14-035/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-14-036/");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2014/ms14-012");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for XP, 2003, Vista, 2008, 7,
2008 R2, 8, 2012, 8.1, and 2012 R2.");
  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:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'MS14-012 Microsoft Internet Explorer CMarkup Use-After-Free');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/02/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/03/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/03/11");

  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:ie");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");

  script_dependencies("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_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS14-012';
kb = '2925418';

kbs = make_list(kb);
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);

if (hotfix_check_sp_range(xp:'3', win2003:'2', vista:'2', win7:'1', win8:'0', win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);

rootfile = hotfix_get_systemroot();
if (!rootfile) exit(1, "Failed to get the system root.");

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

if (
  # Windows 8.1 / 2012 R2
  #
  # - Internet Explorer 11
  hotfix_is_vulnerable(os:"6.3", file:"Mshtml.dll", version:"11.0.9600.16521", min_version:"11.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # Windows 8 / 2012
  #
  # - Internet Explorer 10
  hotfix_is_vulnerable(os:"6.2", file:"Mshtml.dll", version:"10.0.9200.20963", min_version:"10.0.9200.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.2", file:"Mshtml.dll", version:"10.0.9200.16843", min_version:"10.0.9200.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 7 / 2008 R2
  # - Internet Explorer 11
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"11.0.9600.16521", min_version:"11.0.9600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 10
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"10.0.9200.20963", min_version:"10.0.9200.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"10.0.9200.16843", min_version:"10.0.9200.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 9
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"9.0.8112.20651", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"9.0.8112.16540", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"8.0.7601.22597", min_version:"8.0.7601.22000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"8.0.7601.18392", min_version:"8.0.7601.17000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Vista / 2008
  #
  # - Internet Explorer 9
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"9.0.8112.20651", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"9.0.8112.16540", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"8.0.6001.23569", min_version:"8.0.6001.23000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"8.0.6001.19507", min_version:"8.0.6001.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 7
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"7.0.6002.23330", min_version:"7.0.6002.23000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"7.0.6002.19041", min_version:"7.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 2003 / XP 64-bit
  #
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"8.0.6001.23569", min_version:"8.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 7
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"7.0.6000.21371", min_version:"7.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 6
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"6.0.3790.5294",  min_version:"6.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows XP x86
  #
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"8.0.6001.23569", min_version:"8.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 7
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"7.0.6000.21371", min_version:"7.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 6
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"6.0.2900.6512",  min_version:"6.0.2900.0", dir:"\system32", bulletin:bulletin, kb:kb)
)
{
  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');
}

#%NASL_MIN_LEVEL 999999

#
# (C) Tenable Network Security, Inc.
#

# @DEPRECATED@
#
# Disabled on 2014/03/11.  Deprecated by smb_nt_ms14-012.nasl
#

include("compat.inc");

if (description)
{
  script_id(72605);
  script_version("1.11");
  script_cvs_date("Date: 2018/07/27 18:38:15");

  script_cve_id("CVE-2014-0322");
  script_bugtraq_id(65551);
  script_xref(name:"CERT", value:"732479");
  script_xref(name:"MSKB", value:"2934088");

  script_name(english:"MS KB2934088: Vulnerability in Internet Explorer Could Allow Remote Code Execution");
  script_summary(english:"Checks if workarounds referenced in KB article have been applied.");

  script_set_attribute(attribute:"synopsis", value:"The remote host is affected by a remote code execution vulnerability.");
  script_set_attribute(
    attribute:"description",
    value:
"The remote host is missing one of the workarounds referenced in KB
2934088. 

The remote Internet Explorer install is affected by a use after free
vulnerability in the MSHTML CMarkup component.  By exploiting this flaw,
a remote, unauthenticated attacker could execute arbitrary code on the
remote host subject to the privileges of the user running the affected
application.");
  script_set_attribute(attribute:"see_also", value:"http://technet.microsoft.com/en-us/security/advisory/2934088");
  script_set_attribute(
    attribute:"solution",
    value:
"Apply the IE settings workarounds suggested by Microsoft in the
advisory, or apply the MSHTML Shim workaround in the Microsoft
'Fix it' solution."
  );
  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:"exploit_framework_core", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/02/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/02/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/20");

  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:ie");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");

  script_dependencies("microsoft_emet_installed.nasl", "smb_hotfixes.nasl");
  script_require_keys("SMB/Registry/Enumerated", "SMB/WindowsVersion", "SMB/IE/Version");
  script_require_ports(139, 445);
  exit(0);
}

# Deprecated.
exit(0, "This plugin has been deprecated. Use plugin #72930 (smb_nt_ms14-012.nasl) instead.");


include('audit.inc');
include('global_settings.inc');
include("smb_hotfixes.inc");
include("misc_func.inc");
include("smb_func.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");

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

if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);

# only IE 9 and 10 affected
version = get_kb_item_or_exit("SMB/IE/Version");
v = split(version, sep:".", keep:FALSE);
if (int(v[0]) != 9 && int(v[0]) != 10) audit(AUDIT_INST_VER_NOT_VULN, "IE", version);

registry_init();

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

systemroot = hotfix_get_systemroot();
if (!systemroot) audit(AUDIT_FN_FAIL, 'hotfix_get_systemroot');

guid = '{25408f0a-987b-4ab0-a5ac-2ddb89ff22cf}';
path = get_registry_value(handle:hklm, item:"SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\InstalledSDB\" + guid);
RegCloseKey(handle:hklm);

if (isnull(path)) path = systemroot + "\AppPatch\Custom\" + guid + '.sdb';

# Now make sure the file is in place
if (hotfix_file_exists(path:path))
{
  hotfix_check_fversion_end();
  exit(0, "The host is not affected since the Microsoft 'Fix it' has been applied.");
}

# hotfix_file_exists calls NetUseDel(close:FALSE), so we must reconnect
registry_init();

emet_info = '';

emet_installed = FALSE;
emet_with_ie   = FALSE;

if (!isnull(get_kb_item("SMB/Microsoft/EMET/Installed")))
  emet_installed = TRUE;

# Check if EMET is configured with IE.
# The workaround does not specifically ask to enable DEP
# but if IE is configured with EMET, dep is enabled by default.

emet_list = get_kb_list("SMB/Microsoft/EMET/*");
if (!isnull(emet_list))
{
  foreach entry (keys(emet_list))
  {
    if ("iexplore.exe" >< entry && "/dep" >< entry)
    {
      dep = get_kb_item(entry);
      if (!isnull(dep) && dep == 1)
        emet_with_ie = TRUE;
    }
  }
}

if (!emet_installed)
{
  emet_info =
  '\n  Microsoft Enhanced Mitigation Experience Toolkit (EMET) is not' +
  '\n  installed.';
}
else if (emet_installed)
{
  if (!emet_with_ie)
  {
    emet_info =
    '\n  Microsoft Enhanced Mitigation Experience Toolkit (EMET) is' +
    '\n  installed, however Internet Explorer is not configured with EMET.';
  }
}

info_user_settings = '';

# check mitigation per user
hku = registry_hive_connect(hive:HKEY_USERS, exit_on_fail:TRUE);
subkeys = get_registry_subkeys(handle:hku, key:'');

foreach key (subkeys)
{
  if ('.DEFAULT' >< key || 'Classes' >< key ||
     key =~ "^S-1-5-\d{2}$") # skip built-in accounts
    continue;

  mitigation = FALSE;

# "Set Internet and Local intranet security zone settings to "High" to block ActiveX Controls and Active Scripting in these zones"
  key_part_intranet = '\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\1\\CurrentLevel';
  key_part_internet = '\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\3\\CurrentLevel';

  value = get_registry_value(handle:hku, item:key + key_part_intranet);
  value1 = get_registry_value(handle:hku, item:key + key_part_internet);

  if (isnull(value) && isnull(value1))
    continue;

  # 0x00012000 = 73728 = High Security
  if (!isnull(value) && !isnull(value1) &&
     value == 73728 && value1 == 73728)
    mitigation = TRUE;

  # "Configure Internet Explorer to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone"
  key_part_intranet = '\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\1\\1400';
  key_part_internet = '\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\3\\1400';

  value = get_registry_value(handle:hku, item:key + key_part_intranet);
  value1 = get_registry_value(handle:hku, item:key + key_part_internet);

  # 1 = prompt, 3 = disable
  if (!isnull(value) && !isnull(value1) &&
     (value == 1 || value == 3) && (value1 == 1 || value1 == 3))
    mitigation = TRUE;

  if (!mitigation)
    info_user_settings += '\n    ' + key + ' (Active Scripting Enabled)';
}

RegCloseKey(handle:hku);

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

# check if user settings have been overridden by what is in HKLM
# note: Security_HKLM_only can be set by group policy
value = get_registry_value(handle:hklm, item:'SOFTWARE\\Policies\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Security_HKLM_only');

if (info_user_settings != '' && !isnull(value) && value == 1)
{
  mitigation = FALSE;

# "Set Internet and Local intranet security zone settings to "High" to block ActiveX Controls and Active Scripting in these zones"
  key_part_intranet = 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\1\\CurrentLevel';
  key_part_internet = 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\3\\CurrentLevel';

  value = get_registry_value(handle:hklm, item:key_part_intranet);
  value1 = get_registry_value(handle:hklm, item:key_part_internet);

  # 0x00012000 = 73728 = High Security
  if (!isnull(value) && !isnull(value1) &&
     value == 73728 && value1 == 73728)
    mitigation = TRUE;

  # "Configure Internet Explorer to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone"
  key_part_intranet = 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\1\\1400';
  key_part_internet = 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\3\\1400';

  value = get_registry_value(handle:hklm, item:key_part_intranet);
  value1 = get_registry_value(handle:hklm, item:key_part_internet);

  # 1 = prompt, 3 = disable
  if (!isnull(value) && !isnull(value1) &&
     (value == 1 || value == 3) && (value1 == 1 || value1 == 3))
    mitigation = TRUE;

  if (mitigation)
    info_user_settings = '';
}

RegCloseKey(handle:hklm);

close_registry();

if (info_user_settings != '')
{
  port = kb_smb_transport();

  if (report_verbosity > 0)
  {
    if (emet_info != '')
      report =
      '\n  The remote host is missing the MSHTML Shim workaround and the' +
      '\n  following users have vulnerable IE settings :' + info_user_settings + '\n' + emet_info + '\n';
    else
      report =
      '\n  The remote host is missing the MSHTML Shim workaround and the' +
      '\n  following users have vulnerable IE settings :' + info_user_settings + '\n';

    security_hole(port:port, extra:report);
  }
  else security_hole(port);
  exit(0);
}
else exit(0, "The host is not affected since a workaround has been applied.");