Microsoft Windows Kernel Privilege Elevation Vulnerability (2633171)

# Copyright (C) 2011 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.902766");
  script_version("2022-05-25T07:40:23+0000");
  script_cve_id("CVE-2011-2018");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2022-05-25 07:40:23 +0000 (Wed, 25 May 2022)");
  script_tag(name:"creation_date", value:"2011-12-13 20:14:36 +0530 (Tue, 13 Dec 2011)");
  script_name("Microsoft Windows Kernel Privilege Elevation Vulnerability (2633171)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2633171");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/50969");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-098");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone Networks GmbH");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("secpod_reg_enum.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/registry_enumerated");

  script_tag(name:"impact", value:"Successful exploitation could allow remote attackers to execute arbitrary
  code with kernel-mode privileges.");
  script_tag(name:"affected", value:"- Microsoft Windows 7 Service Pack 1 and prior

  - Microsoft Windows XP Service Pack 3 and prior

  - Microsoft Windows 2K3 Service Pack 2 and prior

  - Microsoft Windows Vista Service Pack 2 and prior

  - Microsoft Windows Server 2008 Service Pack 2 and prior");
  script_tag(name:"insight", value:"The flaw is caused due an error within certain exception handlers in the
  kernel when handling objects.");
  script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");
  script_tag(name:"summary", value:"This host is missing an important security update according to
  Microsoft Bulletin MS11-098.");
  script_tag(name:"qod_type", value:"executable_version");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}


include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

if(hotfix_check_sp(xp:4, win2003:3, winVista:3, win2008:3, win7:2) <= 0){
  exit(0);
}

## MS11-098 Hotfix (2633171)
if(hotfix_missing(name:"2633171") == 0){
  exit(0);
}

sysPath = smb_get_systemroot();
if(!sysPath ){
  exit(0);
}

exeVer = fetch_file_version(sysPath:sysPath, file_name:"system32\ntoskrnl.exe");
if(!exeVer){
  exit(0);
}

if(hotfix_check_sp(xp:4) > 0)
{
  SP = get_kb_item("SMB/WinXP/ServicePack");
  if("Service Pack 3" >< SP)
  {
    if(version_is_less(version:exeVer, test_version:"5.1.2600.6165")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    exit(0);
  }
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}

else if(hotfix_check_sp(win2003:3) > 0)
{
  SP = get_kb_item("SMB/Win2003/ServicePack");
  if("Service Pack 2" >< SP)
  {
    if(version_is_less(version:exeVer, test_version:"5.2.3790.4922")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    exit(0);
  }
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}

else if(hotfix_check_sp(winVista:3, win2008:3) > 0)
{
  SP = get_kb_item("SMB/WinVista/ServicePack");

  if(!SP) {
    SP = get_kb_item("SMB/Win2008/ServicePack");
  }

  if("Service Pack 2" >< SP)
  {
    if(version_in_range(version:exeVer, test_version:"6.0.6002.18000", test_version2:"6.0.6002.18532")||
       version_in_range(version:exeVer, test_version:"6.0.6002.22000", test_version2:"6.0.6002.22731")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    exit(0);
  }
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}

else if(hotfix_check_sp(win7:2) > 0)
{
  if(version_is_less(version:exeVer, test_version:"6.1.7600.16905") ||
     version_in_range(version:exeVer, test_version:"6.1.7600.20000", test_version2:"6.1.7600.21076")||
     version_in_range(version:exeVer, test_version:"6.1.7601.17000", test_version2:"6.1.7601.17712")||
     version_in_range(version:exeVer, test_version:"6.1.7601.21000", test_version2:"6.1.7601.21846")){
    security_message( port: 0, data: "The target host was found to be vulnerable" );
  }
}