Microsoft .NET Common Language Runtime Code Execution Vulnerability (974378)

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.900964");
  script_version("2026-06-11T07:15:11+0000");
  script_tag(name:"last_modification", value:"2026-06-11 07:15:11 +0000 (Thu, 11 Jun 2026)");
  script_tag(name:"creation_date", value:"2009-10-15 17:04:00 +0200 (Thu, 15 Oct 2009)");
  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_cve_id("CVE-2009-0090", "CVE-2009-0091", "CVE-2009-2497");
  script_name("Microsoft .NET Common Language Runtime Code Execution Vulnerability (974378)");


  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 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:"Remote attackers could execute arbitrary code and compromise the affected
  system.");
  script_tag(name:"affected", value:"- Microsoft .NET Framework 3.5/SP 1

  - Microsoft .NET Framework 1.1 SP 1

  - Microsoft .NET Framework 2.0 SP 1/SP 2");
  script_tag(name:"insight", value:"- An unspecified error can be exploited to obtain a managed pointer to stack
    memory which can be used to overwrite data at that stack location.

  - An error in the type equality check can be exploited to cast an object of
    one type into another type.

  - An error when handling interfaces can be exploited by malicious .NET or
    Silverlight applications to corrupt memory.");
  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 MS09-061.");
  script_tag(name:"qod_type", value:"registry");
  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2009/2896");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/36611");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/36612");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/36618");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-061");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-061");
  exit(0);
}

include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");
include("http_func.inc");

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

# MS09-061 Hotfix check
if((hotfix_missing(name:"953297") == 0)|| (hotfix_missing(name:"953298") == 0)||
   (hotfix_missing(name:"953300") == 0)|| (hotfix_missing(name:"974417") == 0)||
   (hotfix_missing(name:"974468") == 0)|| (hotfix_missing(name:"974292") == 0)||
   (hotfix_missing(name:"974467") == 0)|| (hotfix_missing(name:"974291") == 0)||
   (hotfix_missing(name:"974469") == 0)|| (hotfix_missing(name:"974470") == 0)){
    exit(0);
}

key  = "SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls\";
if(registry_key_exists(key:key))
{
foreach dllPath (registry_enum_values(key:key))
{
  if((".NET" >< dllPath) && ("\mscorlib.dll" >< dllPath))
  {
    share = ereg_replace(pattern:"([a-zA-Z]):.*", replace:"\1$", string:dllPath);
    file = ereg_replace(pattern:"[a-zA-Z]:(.*)", replace:"\1", string:dllPath);

    dllVer = GetVer(file:file, share:toupper(share));
    if(!isnull(dllVer))
    {
      # 2.0.50727.4062
      if(version_in_range(version:dllVer, test_version:"1.1.4322.2000",test_version2:"1.1.4322.2442")||
         version_in_range(version:dllVer, test_version:"2.0.50727.1000",test_version2:"2.0.50727.1872")||
         version_in_range(version:dllVer, test_version:"2.0.50727.3000",test_version2:"2.0.50727.3602")||
         version_in_range(version:dllVer, test_version:"2.0.50727.4000",test_version2:"2.0.50727.4061"))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        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)
  {
    path =  path + "\mscorlib.dll";
    share = ereg_replace(pattern:"([a-zA-Z]):.*", replace:"\1$", string:path);
    file = ereg_replace(pattern:"[a-zA-Z]:(.*)", replace:"\1", string:path);

    Ver = GetVer(file:file, share:share);
    if(!Ver){
      exit(0);
    }
  }
}

if(hotfix_check_sp(winVista:3) > 0)
{
  if(version_in_range(version:Ver, test_version:"1.1.4322.2000", test_version2:"1.1.4322.2442")||
     version_in_range(version:Ver, test_version:"2.0.50727.1000", test_version2:"2.0.50727.1002")||
     version_in_range(version:Ver, test_version:"2.0.50727.1800", test_version2:"2.0.50727.1872")||
     version_in_range(version:Ver, test_version:"2.0.50727.3000", test_version2:"2.0.50727.3602")||
     version_in_range(version:Ver, test_version:"2.0.50727.4000", test_version2:"2.0.50727.4199"))
  {
    security_message( port: 0, data: "The target host was found to be vulnerable" );
    exit(0);
  }
}

if(hotfix_check_sp(win2008:3) > 0)
{
  if(version_in_range(version:Ver, test_version:"1.1.4322.2000", test_version2:"1.1.4322.2442")||
     version_in_range(version:Ver, test_version:"2.0.50727.1000", test_version2:"2.0.50727.1872")||
     version_in_range(version:Ver, test_version:"2.0.50727.4000", test_version2:"2.0.50727.4061")||
     version_in_range(version:Ver, test_version:"2.0.50727.4000", test_version2:"2.0.50727.4199"))
  {
    security_message( port: 0, data: "The target host was found to be vulnerable" );
    exit(0);
  }
}