OpenTTD Multiple use-after-free Denial of Service vulnerability

# SPDX-FileCopyrightText: 2010 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("1.3.6.1.4.1.25623.1.0.800184");
  script_version("2024-02-05T05:05:38+0000");
  script_tag(name:"last_modification", value:"2024-02-05 05:05:38 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"creation_date", value:"2010-11-30 12:42:12 +0100 (Tue, 30 Nov 2010)");
  script_cve_id("CVE-2010-4168");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-02-02 16:40:58 +0000 (Fri, 02 Feb 2024)");
  script_name("OpenTTD Multiple use-after-free Denial of Service vulnerability");
  script_xref(name:"URL", value:"http://security.openttd.org/en/CVE-2010-4168");
  script_xref(name:"URL", value:"http://security.openttd.org/en/patch/28.patch");

  script_tag(name:"qod_type", value:"registry");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("smb_reg_service_pack.nasl");
  script_mandatory_keys("SMB/WindowsVersion");
  script_require_ports(139, 445);
  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to deny service to
  legitimate users or arbitrary code execution.");
  script_tag(name:"affected", value:"OpenTTD version before 1.0.5");
  script_tag(name:"insight", value:"The flaw is due to a use-after-free error, when a client disconnects
  without sending the 'quit' or 'client error' message. This could cause a
  vulnerable server to read from or write to freed memory leading to a denial
  of service or it can also lead to arbitrary code execution.");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"solution", value:"Upgrade to the latest version of OpenTTD 1.0.5 or later.");
  script_tag(name:"summary", value:"OpenTTD is prone to multiple denial of service vulnerability.");
  script_xref(name:"URL", value:"http://www.openttd.org");
  exit(0);
}


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


if(!get_kb_item("SMB/WindowsVersion")){
  exit(0);
}

key = "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenTTD";
openttd_ver = registry_get_sz(key:key, item:"DisplayVersion");

if(openttd_ver)
{
  if(version_is_less(version:openttd_ver, test_version:"1.0.5")){
    report = report_fixed_ver(installed_version:openttd_ver, fixed_version:"1.0.5");
    security_message(port: 0, data: report);
  }
}