Microsoft Windows WINS Remote Code Execution Vulnerability (969883)

# 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("1.3.6.1.4.1.25623.1.0.900814");
  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:"2009-08-13 19:09:22 +0200 (Thu, 13 Aug 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-2009-1923", "CVE-2009-1924");
  script_name("Microsoft Windows WINS Remote Code Execution Vulnerability (969883)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/969883");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/35980");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/35981");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2009/2234");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-039");

  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 with
  elevated privileges, may result in server crash.");
  script_tag(name:"affected", value:"- Microsoft Windows 2k  Service Pack 4 and prior

  - Microsoft Windows 2k3 Service Pack 2 and prior");
  script_tag(name:"insight", value:"- An Heap overflow error exists when processing specially crafted WINS network
    packets, which could be exploited to crash an affected server.

  - WINS server improperly validates and does not restrict buffer lengths
    passed to the heap, which could be exploited to crash an affected
    server.");
  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 MS09-039.");
  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/ms09-039");
  exit(0);
}

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

# MS09-039 Hotfix check
if(hotfix_missing(name:"969883") == 0){
  exit(0);
}

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

exePath = registry_get_sz(item:"Install Path",
                          key:"SOFTWARE\Microsoft\COM3\Setup");
if(!exePath){
  exit(0);
}

share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:exePath);
file = ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1",
                    string:exePath + "\wins.exe");
fileVer = GetVer(file:file, share:share);
if(!fileVer){
  exit(0);
}

# Win 2000 Server
if(hotfix_check_sp(win2k:5) > 0)
{
  if(version_is_less(version:fileVer, test_version:"5.0.2195.7300")){
    report = report_fixed_ver(installed_version:fileVer, fixed_version:"5.0.2195.7300");
    security_message(port: 0, data: report);
  }
}
# Win 2003 Server
else if(hotfix_check_sp(win2003:3) > 0)
{
  if(version_is_less(version:fileVer, test_version:"5.2.3790.4520")){
    report = report_fixed_ver(installed_version:fileVer, fixed_version:"5.2.3790.4520");
    security_message(port: 0, data: report);
  }
}