MS14-039: Vulnerability in On-Screen Keyboard Could Allow Elevation of Privilege (2975685)

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

include('compat.inc');

if (description)
{
  script_id(76408);
  script_version("1.10");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id("CVE-2014-2781");
  script_bugtraq_id(68397);
  script_xref(name:"MSFT", value:"MS14-039");
  script_xref(name:"MSKB", value:"2973201");
  script_xref(name:"MSKB", value:"2973906");
  script_xref(name:"IAVA", value:"2014-A-0096");

  script_name(english:"MS14-039: Vulnerability in On-Screen Keyboard Could Allow Elevation of Privilege (2975685)");
  script_summary(english:"Checks version of Win32k.sys / osk.exe.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by a privilege escalation
vulnerability.");
  script_set_attribute(attribute:"description", value:
"A privilege escalation vulnerability exists on the remote Windows host
due to improper handling of low integrity processes with the On-
Screen Keyboard (OSK). A local attacker could exploit this
vulnerability to execute arbitrary code on the remote host under the
privileges of the current user.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2014/ms14-039");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Vista, 2008, 7, 2008 R2,
8, 2012, 8.1, and 2012 R2.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/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:"2014/07/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/07/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/07/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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 = 'MS14-039';
kb  = "2973201";

kbs = make_list(kb, "2973906");
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(vista:'2', win7:'1', win8:'0', win81:'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);

if (
  # Windows 8.1 32-bit with KB2919355 applied
  hotfix_is_vulnerable(os:"6.3", arch:"x86", sp:0, file:"osk.exe", version:"6.3.9600.17213", min_version:"6.3.9600.17031", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # Windows 8.1 / Windows Server 2012 R2 64-bit with KB2919355 applied
  hotfix_is_vulnerable(os:"6.3", arch:"x64", sp:0, file:"Win32k.sys", version:"6.3.9600.17200", min_version:"6.3.9600.17031", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # Windows 8.1 / Windows Server 2012 R2 without KB2919355 applied
  hotfix_is_vulnerable(os:"6.3", sp:0, file:"Win32k.sys", version:"6.3.9600.16671", min_version:"6.3.9600.16000", dir:"\system32", bulletin:bulletin, kb:"2973906") ||

  # Windows 8 / Windows Server 2012
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"Win32k.sys", version:"6.2.9200.21142", min_version:"6.2.9200.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"Win32k.sys", version:"6.2.9200.17025", min_version:"6.2.9200.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 7 / Server 2008 R2
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Win32k.sys", version:"6.1.7601.22722", min_version:"6.1.7601.22000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Win32k.sys", version:"6.1.7601.18512", min_version:"6.1.7600.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Vista / Windows Server 2008
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Win32k.sys", version:"6.0.6002.23420", min_version:"6.0.6002.23000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Win32k.sys", version:"6.0.6002.19119", min_version:"6.0.6002.18000", 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');
}