Microsoft DHTML Editing Component ActiveX Remote Code Execution Vulnerability (956844)

# 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("1.3.6.1.4.1.25623.1.0.900837");
  script_version("2026-04-28T06:28:06+0000");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2009-09-10 15:23:12 +0200 (Thu, 10 Sep 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-2009-2519");
  script_name("Microsoft DHTML Editing Component ActiveX Remote Code Execution Vulnerability (956844)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/956844");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/36280");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2009/2564");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048");

  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:"Successful exploitation will let the attacker execute arbitrary code or
  compromise an affected system.");
  script_tag(name:"affected", value:"- Microsoft Windows 2k  Service Pack 4 and prior

  - Microsoft Windows XP  Service Pack 3 and prior

  - Microsoft Windows 2k3 Service Pack 2 and prior");
  script_tag(name:"insight", value:"The flaw is due to an error in the bundled DHTML Editing Component
  ActiveX control when formatting HTML markup and can be exploited via a
  specially crafted web page.");
  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 MS09-046.");
  script_tag(name:"qod_type", value:"registry");
  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-046");
  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) <= 0){
  exit(0);
}

# MS09-046 Hotfix check
if(hotfix_missing(name:"956844") == 0)
{
  exit(0);
}

dllPath = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion",
                          item:"CommonFilesDir");

if(!dllPath)
{
  exit(0);
}

share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:dllPath);
file = ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1",
                    string:dllPath + "\Microsoft Shared\Triedit\Triedit.dll");

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

if(hotfix_check_sp(win2k:5) > 0)
{
  if(version_is_less(version:dllVer, test_version:"6.1.0.9235")){
    security_message( port: 0, data: "The target host was found to be vulnerable" );
  }
}
else if(hotfix_check_sp(xp:4) > 0)
{
  SP = get_kb_item("SMB/WinXP/ServicePack");
  if("Service Pack 2" >< SP || ("Service Pack 3" >< SP))
  {
    if(version_is_less(version:dllVer, test_version:"6.1.0.9246")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }
  else
    security_message( port: 0, data: "The target host was found to be vulnerable" );
}
else if(hotfix_check_sp(win2003:3) > 0)
{
  SP = get_kb_item("SMB/Win2003/ServicePack");
  if("Service Pack 2" >< SP)
  {
    if(version_is_less(version:dllVer, test_version:"6.1.0.9246")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }
  else
    security_message( port: 0, data: "The target host was found to be vulnerable" );
}