Microsoft .NET Framework Remote Code Execution Vulnerability (2745030)

# SPDX-FileCopyrightText: 2012 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("1.3.6.1.4.1.25623.1.0.902934");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2012-1895", "CVE-2012-1896", "CVE-2012-2519", "CVE-2012-4776",
                "CVE-2012-4777");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2012-11-14 11:47:24 +0530 (Wed, 14 Nov 2012)");
  script_name("Microsoft .NET Framework Remote Code Execution Vulnerability (2745030)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2745030");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/56455");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/56456");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/56462");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/56464");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2729456");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2729460");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2729449");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2729452");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2729451");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2729450");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2729453");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2698023");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-074");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2012 Greenbone AG");
  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 will allow an attacker to execute arbitrary code
  with the privileges of the currently logged-in user. Failed attacks will cause denial-of-service conditions.");

  script_tag(name:"affected", value:"Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.0, 3.5, 3.5.1, and 4.");

  script_tag(name:"insight", value:"- An error within permissions checking of objects that perform reflection can
  be exploited via a specially crafted XAML Browser Application (XBAP) or an untrusted .NET application.

  - An sanitisation error when processing partially trusted code can be exploited to disclose certain data via a
  specially crafted XAML Browser Application (XBAP) or an untrusted .NET application.

  - The Entity Framework component loads certain libraries in an insecure manner, which can be exploited to load
  arbitrary libraries by tricking a user into opening certain files located on a remote WebDAV or SMB share.

  - A validation error when acquiring proxy settings via the Web Proxy Auto-Discovery (WPAD) can be exploited to
  execute JavaScript code with reduced restrictions.

  - An error within permissions checking of Windows Presentation Foundation (WPF) objects that perform reflection
  can be exploited 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 a critical security update according to
  Microsoft Bulletin MS12-074.");

  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(path && "\Microsoft.NET\Framework" >< path)
  {
    dllVer = fetch_file_version(sysPath:path, file_name:"System.dll");
    if(dllVer)
    {
      # .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7 and Windows Server 2008 R2
      if(version_in_range(version:dllVer, test_version:"4.0.30319.000", test_version2:"4.0.30319.295")||
         version_in_range(version:dllVer, test_version:"4.0.30319.500", test_version2:"4.0.30319.585"))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }

      # .NET Framework 4.5 on Windows 7 SP1, Windows Server 2008 R2 SP 1, Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2
      if((hotfix_check_sp(win7:2, win7x64:2, win2008r2:2, winVista:3, win2008:3) > 0) &&
         (version_in_range(version:dllVer, test_version:"4.0.30319.18000", test_version2:"4.0.30319.18013")||
          version_in_range(version:dllVer, test_version:"4.0.30319.19000", test_version2:"4.0.30319.19018")))
      {
        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((hotfix_check_sp(win7:2, win7x64:2, win2008r2:2) > 0) &&
         (version_in_range(version:dllVer, test_version:"2.0.50727.5000", test_version2:"2.0.50727.5465")||
          version_in_range(version:dllVer, test_version:"2.0.50727.5600", test_version2:"2.0.50727.5736")||
          version_in_range(version:dllVer, test_version:"2.0.50727.4000", test_version2:"2.0.50727.4983")))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }

      # .NET Framework 2.0 Service Pack 2 on Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2
      if((hotfix_check_sp(winVista:3, win2008:3) > 0) &&
         (version_in_range(version:dllVer, test_version:"2.0.50727.4000", test_version2:"2.0.50727.4233")||
          version_in_range(version:dllVer, test_version:"2.0.50727.5700", test_version2:"2.0.50727.5736")))
      {
        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((hotfix_check_sp(xp:4, xpx64:3, win2003:3, win2003x64:3) > 0) &&
         (version_in_range(version:dllVer, test_version:"2.0.50727.3000", test_version2:"2.0.50727.3642")||
          version_in_range(version:dllVer, test_version:"2.0.50727.5700", test_version2:"2.0.50727.5736")))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }

      # .NET Framework 1.1 Service Pack 1 on Windows XP, Windows Server 2003, Windows Vista and Windows Server 2008
      if((hotfix_check_sp(xp:4, win2003:3, win2003x64:3, winVista:3, win2008:3) > 0) &&
         (version_in_range(version:dllVer, test_version:"1.1.4322.2000", test_version2:"1.1.4322.2499")))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }
    }
  }
}

# .NET Framework 1.1 Service Pack 1 when used with
foreach item (registry_enum_keys(key:key))
{
  path = registry_get_sz(key:key + item, item:"Path");
  if("\Microsoft.NET\Framework" >< path)
  {
    dllVer = fetch_file_version(sysPath:path, file_name:"mscorlib.dll");
    if(dllVer)
    {
      if(hotfix_check_sp(win2003:3) > 0)
      {
        # .NET Framework 1.1 Service Pack 1
        if(version_in_range(version:dllVer, test_version:"1.1.4322.2000", test_version2:"1.1.4322.2499"))
        {
          security_message( port: 0, data: "The target host was found to be vulnerable" );
          exit(0);
        }
      }
    }
  }
}

key = "SOFTWARE\Microsoft\ASP.NET\4.0.30319.0";
if(registry_key_exists(key:key))
{
  path = registry_get_sz(key:key, item:"Path");
  if(path){
    dllv4 = fetch_file_version(sysPath:path, file_name:"WPF\Presentationcore.dll");
  }
}

# .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7
if(dllv4 &&
  (version_in_range(version:dllv4, test_version:"4.0.30319.000", test_version2:"4.0.30319.297") ||
   version_in_range(version:dllv4, test_version:"4.0.30319.500", test_version2:"4.0.30319.587")))
{
  security_message( port: 0, data: "The target host was found to be vulnerable" );
  exit(0);
}

# .NET Framework 4.5 on Windows 7 SP1, Windows Server 2008 R2 SP 1, Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2
if(dllv4)
{
  if((hotfix_check_sp(win7:2, win7x64:2, win2008r2:2, winVista:3, win2008:3) > 0) &&
    (version_in_range(version:dllv4, test_version:"4.0.30319.18000", test_version2:"4.0.30319.18014")||
     version_in_range(version:dllv4, test_version:"4.0.30319.19000", test_version2:"4.0.30319.19019")))
   {
     security_message( port: 0, data: "The target host was found to be vulnerable" );
     exit(0);
   }
}