Microsoft .NET Framework Privilege Elevation Vulnerability (2800277)

# Copyright (C) 2013 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("1.3.6.1.4.1.25623.1.0.902950");
  script_version("2022-05-25T07:40:23+0000");
  script_cve_id("CVE-2013-0073");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/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:"2013-02-13 13:21:23 +0530 (Wed, 13 Feb 2013)");
  script_name("Microsoft .NET Framework Privilege Elevation Vulnerability (2800277)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2800277");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/57847");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-015");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2013 Greenbone Networks GmbH");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");

  script_tag(name:"impact", value:"Successful exploitation could allow an attacker to execute arbitrary code.");
  script_tag(name:"affected", value:"- Microsoft .NET Framework 4

  - Microsoft .NET Framework 4.5

  - Microsoft .NET Framework 3.5.1

  - Microsoft .NET Framework 2.0 Service Pack 2");
  script_tag(name:"insight", value:"The flaw is due to an error when handling permissions of a callback function
  when a certain WinForm object is created and can be exploited to bypass CAS
  (Code Access Security) restrictions via a specially crafted XAML Browser
  Application (XBAP) or an untrusted .NET application.");
  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 MS13-015.");
  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, xpx64:3, win2003:3, win2003x64:3, winVista:3,
                   win7:2, win7x64:2, win2008:3, win2008r2:2) <= 0){
  exit(0);
}

key = "SOFTWARE\Microsoft\ASP.NET\";
if(!registry_key_exists(key:key)){
  exit(0);
}

foreach item (registry_enum_keys(key:key))
{
  path = registry_get_sz(key:key + item, item:"Path");
  if("\Microsoft.NET\Framework" >< path)
  {
    if("v4.0.30319" >< path){
      dllv4 = fetch_file_version(sysPath:path, file_name:"system.windows.forms.dll");
    }

    if("v2.0.50727" >< path){
      dllv2 = fetch_file_version(sysPath:path, file_name:"system.windows.forms.dll");
    }
  }
}

## .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista,
##  Windows Server 2008, Windows 7, and Windows Server 2008 R2
if(dllv4 &&
  (version_in_range(version:dllv4, test_version:"4.0.30319.1000", test_version2:"4.0.30319.1001") ||
   version_in_range(version:dllv4, test_version:"4.0.30319.2000", test_version2:"4.0.30319.2002")))
{
  security_message( port: 0, data: "The target host was found to be vulnerable" );
  exit(0);
}

## .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2
if(dllv2 && (hotfix_check_sp(win7:2, win7x64:2, win2008r2:2) > 0))
{
  if(version_in_range(version:dllv2, test_version:"2.0.50727.0000", test_version2:"2.0.50727.4985") ||
     version_in_range(version:dllv2, test_version:"2.0.50727.7000", test_version2:"2.0.50727.7014") ||
     version_in_range(version:dllv2, test_version:"2.0.50727.5400", test_version2:"2.0.50727.5467"))
  {
    security_message( port: 0, data: "The target host was found to be vulnerable" );
    exit(0);
  }
}

## .NET Framework 2.0 SP 2 on Windows Vista Service and Windows Server 2008
if(dllv2 && (hotfix_check_sp(winVista:3, win2008:3) > 0))
{
  if(version_in_range(version:dllv2, test_version:"2.0.50727.0000", test_version2:"2.0.50727.4235") ||
     version_in_range(version:dllv2, test_version:"2.0.50727.7000", test_version2:"2.0.50727.7014"))
  {
    security_message( port: 0, data: "The target host was found to be vulnerable" );
    exit(0);
  }
}

## .NET Framework 2.0 Service Pack 2 on Windows XP and Windows Server 2003
if(dllv2 && (hotfix_check_sp(xp:4, xpx64:3, win2003:3, win2003x64:3) > 0))
{
  if(version_in_range(version:dllv2, test_version:"2.0.50727.0000", test_version2:"2.0.50727.3644") ||
     version_in_range(version:dllv2, test_version:"2.0.50727.7000", test_version2:"2.0.50727.7014"))
  {
    security_message( port: 0, data: "The target host was found to be vulnerable" );
    exit(0);
  }
}

## .NET Framework 4.5 on Windows 7 Service Pack 1, Windows Server 2008 R2
## Service Pack 1, Windows Vista Service Pack 2, and Windows Server 2008 Service Pack 2
if(dllv4 && (hotfix_check_sp(win7:2, win2008:3, win7x64:2, win2008r2:2, winVista:3) > 0))
{
  if(version_in_range(version:dllv4, test_version:"4.0.30319.18000", test_version2:"4.0.30319.18035") ||
     version_in_range(version:dllv4, test_version:"4.0.30319.19000", test_version2:"4.0.30319.19051"))
  {
    security_message( port: 0, data: "The target host was found to be vulnerable" );
    exit(0);
  }
}