Microsoft Active Accessibility Remote Code Execution Vulnerability (2623699)

# SPDX-FileCopyrightText: 2011 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("1.3.6.1.4.1.25623.1.0.902746");
  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:"2011-10-12 16:01:32 +0200 (Wed, 12 Oct 2011)");
  script_cve_id("CVE-2011-1247");
  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_name("Microsoft Active Accessibility Remote Code Execution Vulnerability (2623699)");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-075");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49976");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 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 could allow remote attackers to execute arbitrary
  code in the context of the user running the vulnerable application.");
  script_tag(name:"affected", value:"- Microsoft Windows 7 Service Pack 1 and prior

  - Microsoft Windows XP Service Pack 3 and prior

  - Microsoft Windows 2K3 Service Pack 2 and prior

  - Microsoft Windows Vista Service Pack 2 and prior

  - Microsoft Windows Server 2008 Service Pack 2 and prior");
  script_tag(name:"insight", value:"The flaw is due to a way that the Microsoft Active Accessibility
  component handles the loading of DLL files. This can be exploited to load
  arbitrary libraries by tricking a user into opening a file located on a
  remote WebDAV or SMB share.");
  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 MS11-075.");
  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, win2003:3, winVista:3, win2008:3, win7:2) <= 0){
  exit(0);
}

## MS11-075 Hotfix 2564958
if((hotfix_missing(name:"2564958") == 0)){
  exit(0);
}

sysPath = smb_get_systemroot();
if(!sysPath ){
  exit(0);
}

dllVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Oleacc.dll");
if(dllVer)
{
  if(hotfix_check_sp(xp:4) > 0)
  {
    SP = get_kb_item("SMB/WinXP/ServicePack");
    if("Service Pack 3" >< SP)
    {
      if(version_is_less(version:dllVer, test_version:"7.0.2600.6153")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
      }
      exit(0);
    }
    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:"7.0.3790.4909")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
      }
      exit(0);
    }
    security_message( port: 0, data: "The target host was found to be vulnerable" );
  }

  else if(hotfix_check_sp(winVista:3, win2008:3) > 0)
  {
    SP = get_kb_item("SMB/WinVista/ServicePack");

    if(!SP) {
      SP = get_kb_item("SMB/Win2008/ServicePack");
    }

    if("Service Pack 2" >< SP)
    {
      if(version_is_less(version:dllVer, test_version:"7.0.6002.18508")||
         version_in_range(version:dllVer, test_version:"7.0.6002.22000", test_version2:"7.0.6002.22705")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
      }
      exit(0);
    }
    security_message( port: 0, data: "The target host was found to be vulnerable" );
  }
}

dllVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Oleaut32.dll");
if(dllVer)
{
  if(hotfix_check_sp(win7:2) > 0)
  {
    if(version_is_less(version:dllVer, test_version:"6.1.7600.16872") ||
       version_in_range(version:dllVer, test_version:"6.1.7600.20000", test_version2:"6.1.7600.21035") ||
       version_in_range(version:dllVer, test_version:"6.1.7601.17000", test_version2:"6.1.7601.17675") ||
       version_in_range(version:dllVer, test_version:"6.1.7601.20000", test_version2:"6.1.7601.21801")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }
}