Microsoft Windows CryptoAPI X.509 Spoofing Vulnerabilities (974571)

###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_ms09-056.nasl 8724 2018-02-08 15:02:56Z cfischer $
#
# Microsoft Windows CryptoAPI X.509 Spoofing Vulnerabilities (974571)
#
# Authors:
# Sharath S <[email protected]>
#
# Updated By: Madhuri D <[email protected]> on 2010-11-25
#      - To detect file version 'msasn1.dll' on vista, win 2008 and win 7
# 
# Copyright:
# Copyright (c) 2009 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.
###############################################################################

if(description)
{
  script_id(900876);
  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:"2009-10-14 16:47:08 +0200 (Wed, 14 Oct 2009)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cve_id("CVE-2009-2510", "CVE-2009-2511");
  script_bugtraq_id(36475, 36577);
  script_name("Microsoft Windows CryptoAPI X.509 Spoofing Vulnerabilities (974571)");
  script_xref(name : "URL" , value : "http://support.microsoft.com/kb/974571");
  script_xref(name : "URL" , value : "http://www.vupen.com/english/advisories/2009/2891");
  script_xref(name : "URL" , value : "http://www.microsoft.com/technet/security/bulletin/MS09-056.mspx");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 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 : "Successful exploitation will allow attacker to conduct spoofing attacks on
  the affected system.

  Impact Level: System");
  script_tag(name : "affected" , value : "Microsoft Windows 7

  Microsoft Windows 2K  Service Pack 4 and prior.

  Microsoft Windows XP  Service Pack 3 and prior.

  Microsoft Windows 2K3 Service Pack 2 and prior.

  Microsoft Windows Vista Service Pack 1/2 and prior.

  Microsoft Windows Server 2008 Service Pack 1/2 and prior.");
  script_tag(name : "insight" , value : "- The issue is due to the Windows CryptoAPI incorrectly parsing a null
    terminator as the end of any values identified by an Object Identifier (OID)
    when processing ASN.1 information from X.509 certificates.

  - An integer overflow error in the Windows CryptoAPI when parsing ASN.1 object
    identifiers from X.509 certificates, which could allow an attacker to
    generate a malicious certificate that would be parsed incorrectly by the
    Windows CryptoAPI.");
  script_tag(name : "solution" , value : "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/ms09-056.mspx");
  script_tag(name : "summary" , value : "This host is missing a critical security update according to
  Microsoft Bulletin MS09-056.");
  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");

if(hotfix_check_sp(xp:4, win2k:5, win2003:3, winVista:3, win7:1, win2008:3) <= 0){
  exit(0);
}

# MS09-056 Hotfix check
if(hotfix_missing(name:"974571") == 0){
  exit(0);
}

## Get System32 path
sysPath = smb_get_system32root();
if(sysPath)
{
  dllVer = fetch_file_version(sysPath, file_name:"msasn1.dll");
  if(!dllVer){
    exit(0);
  }
}

# Windows 2K
if(hotfix_check_sp(win2k:5) > 0)
{
  # Grep for msasn1.dll version < 5.0.2195.7334
  if(version_is_less(version:dllVer, test_version:"5.0.2195.7334")){
    security_message(0);
  }
}

#  Windows XP
else if(hotfix_check_sp(xp:4) > 0)
{
  SP = get_kb_item("SMB/WinXP/ServicePack");
  if("Service Pack 2" >< SP)
  {
    # Grep for msasn1.dll < 5.1.2600.3624
    if(version_is_less(version:dllVer, test_version:"5.1.2600.3624")){
      security_message(0);
    }
    exit(0);
  }
  else if("Service Pack 3" >< SP)
  {
    # Grep for msasn1.dll < 5.1.2600.5875
    if(version_is_less(version:dllVer, test_version:"5.1.2600.5875")){
      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)
  {
    # Grep for msasn1.dll version < 5.2.3790.4584
    if(version_is_less(version:dllVer, test_version:"5.2.3790.4584")){
      security_message(0);
    }
     exit(0);
  }
  security_message(0);
}

## Get System32 path
sysPath = smb_get_system32root();
if(sysPath)
{
  dllVer = fetch_file_version(sysPath, file_name:"msasn1.dll");
  if(!dllVer){
    exit(0);
  }
}

# Windows Vista
if(hotfix_check_sp(winVista:3) > 0)
{
  SP = get_kb_item("SMB/WinVista/ServicePack");
  if("Service Pack 1" >< SP)
  {
    # Grep for msasn1.dll version < 6.0.6001.18326
    if(version_is_less(version:dllVer, test_version:"6.0.6001.18326")){
      security_message(0);
    }
     exit(0);
  }

  if("Service Pack 2" >< SP)
  {
    # Grep for msasn1.dll version < 6.0.6002.18106
      if(version_is_less(version:dllVer, test_version:"6.0.6002.18106")){
      security_message(0);
    }
     exit(0);
  }
  security_message(0);
}

# Windows Server 2008
else if(hotfix_check_sp(win2008:3) > 0)
{
  SP = get_kb_item("SMB/Win2008/ServicePack");
  if("Service Pack 1" >< SP)
  {
    # Grep for msasn1.dll version < 6.0.6001.18326
    if(version_is_less(version:dllVer, test_version:"6.0.6001.18326")){
      security_message(0);
    }
     exit(0);
  }

  if("Service Pack 2" >< SP)
  {
    # Grep for msasn1.dll version < 6.0.6002.18106
    if(version_is_less(version:dllVer, test_version:"6.0.6002.18106")){
      security_message(0);
    }
     exit(0);
  }
 security_message(0);
}

# Windows 7
else if(hotfix_check_sp(win7:1) > 0)
{
  # Grep for msasn1.dll version < 6.1.7600.16415
  if(version_is_less(version:dllVer, test_version:"6.1.7600.16415")){
     security_message(0);
  }
}