Microsoft Windows DNS Server Remote Code Execution Vulnerability (2562485)

# 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("1.3.6.1.4.1.25623.1.0.900295");
  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:"2011-08-11 06:41:03 +0200 (Thu, 11 Aug 2011)");
  script_cve_id("CVE-2011-1966", "CVE-2011-1970");
  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_name("Microsoft Windows DNS Server Remote Code Execution Vulnerability (2562485)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2562485");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49012");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49019");
  script_xref(name:"URL", value:"http://www.sophos.com/support/knowledgebase/article/113982.html");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058");

  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 attacker to execute arbitrary
  code or to cause the DNS server to stop responding.");
  script_tag(name:"affected", value:"- Microsoft Windows 2K3 Service Pack 2 and prior

  - Microsoft Windows Server 2008 Service Pack 2 and prior");
  script_tag(name:"insight", value:"The flaws are exists when Windows DNS server processing a query for a NAPTR
  (Name Authority Pointer) resource record and when processing a query for
  a non-existent domain.");
  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 MS11-058.");
  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(win2003:3, win2008:3) <= 0){
  exit(0);
}

if(!registry_key_exists(key:"SYSTEM\CurrentControlSet\Services\DNS")){
  exit(0);
}

## MS11-058 Hotfix 2562485
if((hotfix_missing(name:"2562485") == 0)){
  exit(0);
}

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

sysVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Dns.exe");
if(!sysVer){
  exit(0);
}

if(hotfix_check_sp(win2003:3) > 0)
{
  SP = get_kb_item("SMB/Win2003/ServicePack");
  if("Service Pack 2" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"5.2.3790.4882")){
      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(win2008:3) > 0)
{
  SP = get_kb_item("SMB/Win2008/ServicePack");

  if("Service Pack 2" >< SP)
  {
    if(version_in_range(version:sysVer, test_version:"6.0.6002.18000", test_version2:"6.0.6002.18485")||
       version_in_range(version:sysVer, test_version:"6.0.6002.22000", test_version2:"6.0.6002.22664")){
      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" );
}