Microsoft Windows Kernel Elevation of Privilege Vulnerability (2393802)

# SPDX-FileCopyrightText: 2011 Greenbone AG
# 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-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.902337");
  script_version("2026-04-28T06:28:06+0000");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2011-02-09 17:14:46 +0100 (Wed, 09 Feb 2011)");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2010-4398", "CVE-2011-0045");
  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:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-07-09 18:24:01 +0000 (Tue, 09 Jul 2024)");
  script_name("Microsoft Windows Kernel Elevation of Privilege Vulnerability (2393802)");

  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2011/0324");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/45045");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/46136");
  script_xref(name:"URL", value:"http://packetstormsecurity.org/files/cve/CVE-2011-0045");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  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 will allow remote attackers or malicious users to
  execute arbitrary code with kernel privileges.");

  script_tag(name:"affected", value:"- Microsoft Windows 7

  - 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 flaws are due to

  - an integer truncation error in the Windows kernel that does not properly
    validate user-supplied data before allocating memory.

  - a buffer overflow error in the 'win32k.sys' driver when interacting with
    the Windows kernel.");

  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 a critical security update according to
  Microsoft Bulletin MS11-011.");

  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);
}

## MS11-011 Hotfix
if((hotfix_missing(name:"2393802") == 0)){
  exit(0);
}

sysPath = registry_get_sz(key:"SOFTWARE\Microsoft\COM3\Setup",
                          item:"Install Path");
if(sysPath)
{
  dllVer = fetch_file_version(sysPath:sysPath, file_name:"Ntoskrnl.exe");
  if(dllVer)
  {
    if(hotfix_check_sp(xp:4) > 0)
    {
      SP = get_kb_item("SMB/WinXP/ServicePack");
      if("Service Pack 3" >< SP)
      {
        if(version_is_less(version:dllVer, test_version:"5.1.2600.6055")){
          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:dllVer, test_version:"5.2.3790.4789")){
           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" );
    }
  }
}

sysPath = registry_get_sz(key:"SOFTWARE\Microsoft\Windows NT\CurrentVersion",
                          item:"PathName");

if(sysPath)
{
  dllVer = fetch_file_version(sysPath:sysPath, file_name:"System32\Ntoskrnl.exe");
  if(dllVer)
  {
    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 1" >< SP)
      {
        if(version_in_range(version:dllVer, test_version:"6.0.6001.18000", test_version2:"6.0.6001.18537")||
           version_in_range(version:dllVer, test_version:"6.0.6001.22000", test_version2:"6.0.6001.22776")){
           security_message( port: 0, data: "The target host was found to be vulnerable" );
        }
        exit(0);
      }

      if("Service Pack 2" >< SP)
      {
        if(version_in_range(version:dllVer, test_version:"6.0.6002.18000", test_version2:"6.0.6002.18326")||
           version_in_range(version:dllVer, test_version:"6.0.6002.22000", test_version2:"6.0.6002.22504")){
           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_in_range(version:dllVer, test_version:"6.1.7600.16000", test_version2:"6.1.7600.16694")||
         version_in_range(version:dllVer, test_version:"6.1.7600.20000", test_version2:"6.1.7600.20825")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
      }
    }
  }
}