Microsoft Windows CSRSS Privilege Escalation Vulnerabilities (2507938)

###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_ms11-056.nasl 8724 2018-02-08 15:02:56Z cfischer $
#
# Microsoft Windows CSRSS Privilege Escalation Vulnerabilities (2507938)
#
# Authors:
# Shashi Kiran N <[email protected]>
#
# Copyright:
# Copyright (c) 2011 SecPod, http://www.secpod.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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.
###############################################################################

tag_impact = "Successful exploitation could allow local attacker to execute arbitrary
  code on the system with elevated privileges.

  Impact Level: System";
tag_affected = "Microsoft Windows 7 Service Pack 1 and prior

  Microsoft Windows XP Service Pack 3 and prior

  Microsoft Windows 2003 Service Pack 2 and prior

  Microsoft Windows Vista Service Pack 2 and prior

  Microsoft Windows Server 2008 Service Pack 2 and prior";
tag_insight = "The flaws are due to,

  - memory corruption error related to AllocConsole

  - memory corruption error related to SrvSetConsoleLocalEUDC

  - improper verification by SrvSetConsoleNumberOfCommand

  - integer overflow in SrvWriteConsoleOutput";
tag_solution = "Run Windows Update and update the listed hotfixes or download and
  update mentioned hotfixes in the advisory from the below link,

  http://www.microsoft.com/technet/security/bulletin/ms11-056.mspx";
tag_summary = "This host is missing a critical security update according to
  Microsoft Bulletin MS11-056.";

if(description)
{
  script_id(902609);
  script_version("$Revision: 8724 $");
  script_tag(name:"last_modification", value:"$Date: 2018-02-08 16:02:56 +0100 (Thu, 08 Feb 2018) $");
  script_tag(name:"creation_date", value:"2011-07-13 17:31:13 +0200 (Wed, 13 Jul 2011)");
  script_cve_id("CVE-2011-1281", "CVE-2011-1282", "CVE-2011-1283",
                "CVE-2011-1284", "CVE-2011-1870");
  script_bugtraq_id(48588, 48598, 48604, 48606, 48605);
  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_name("Microsoft Windows CSRSS Privilege Escalation Vulnerabilities (2507938)");
  script_xref(name : "URL" , value : "http://support.microsoft.com/kb/2507938");
  script_xref(name : "URL" , value : "http://www.microsoft.com/technet/security/bulletin/ms11-056.mspx");

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

  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  script_tag(name:"qod_type", value:"registry");
  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");

## Check for OS and Service Pack
if(hotfix_check_sp(xp:4, win2003:3, winVista:3, win2008:3, win7:2) <= 0){
  exit(0);
}

## MS11-056 Hotfix (2507938)
if(hotfix_missing(name:"2507938") == 0){
  exit(0);
}

## Get System Path
sysPath = smb_get_systemroot();
if(!sysPath){
  exit(0);
}

## Get Version from winsrv.dll file
sysVer = fetch_file_version(sysPath, file_name:"system32\winsrv.dll");
if(!sysVer){
  exit(0);
}

## Windows XP
if(hotfix_check_sp(xp:4) > 0)
{
  SP = get_kb_item("SMB/WinXP/ServicePack");
  if("Service Pack 3" >< SP)
  {
    ## Check for winsrv.dll version < 5.1.2600.6104
    if(version_is_less(version:sysVer, test_version:"5.1.2600.6104")){
      security_message(0);
    }
    exit(0);
  }
  security_message(0);
}

## Windows 2003
else if(hotfix_check_sp(win2003:3) > 0)
{
  SP = get_kb_item("SMB/Win2003/ServicePack");
  if("Service Pack 2" >< SP)
  {
    ## Check for winsrv.dll version < 5.2.3790.4860
    if(version_is_less(version:sysVer, test_version:"5.2.3790.4860")){
      security_message(0);
    }
    exit(0);
  }
  security_message(0);
}

## Windows Vista and Windows Server 2008
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 1" >< SP)
  {
    ## Check for winsrv.dll version
    if(version_in_range(version:sysVer, test_version:"6.0.6001.18000", test_version2:"6.0.6001.18637")||
       version_in_range(version:sysVer, test_version:"6.0.6001.22000", test_version2:"6.0.6001.22903")){
      security_message(0);
    }
    exit(0);
  }
  if("Service Pack 2" >< SP)
  {
    ## Check for winsrv.dll version
    if(version_in_range(version:sysVer, test_version:"6.0.6002.18000", test_version2:"6.0.6002.18455")||
       version_in_range(version:sysVer, test_version:"6.0.6002.22000", test_version2:"6.0.6002.22627")){
      security_message(0);
    }
    exit(0);
  }
  security_message(0);
}

else if(hotfix_check_sp(win7:2) > 0)
{
  ## Check for winsrv.dll version
  if(version_in_range(version:sysVer, test_version:"6.1.7600.16000", test_version2:"6.1.7600.16815")||
     version_in_range(version:sysVer, test_version:"6.1.7600.20000", test_version2:"6.1.7600.20977")||
     version_in_range(version:sysVer, test_version:"6.1.7601.17000", test_version2:"6.1.7601.17616")||
     version_in_range(version:sysVer, test_version:"6.1.7601.21000", test_version2:"6.1.7601.21727")){
    security_message(0);
  }
}