XM Easy Personal FTP Server File/Folder Denial of Service Vulnerability

# 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("1.3.6.1.4.1.25623.1.0.800726");
  script_version("2023-07-27T05:05:08+0000");
  script_tag(name:"last_modification", value:"2023-07-27 05:05:08 +0000 (Thu, 27 Jul 2023)");
  script_tag(name:"creation_date", value:"2009-12-02 13:54:57 +0100 (Wed, 02 Dec 2009)");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_cve_id("CVE-2009-4108");
  script_name("XM Easy Personal FTP Server File/Folder Denial of Service Vulnerability");
  script_xref(name:"URL", value:"http://secunia.com/advisories/37473");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/37112");
  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/54400");
  script_xref(name:"URL", value:"http://www.securityfocus.com/archive/1/archive/1/508049/100/0/threaded");

  script_tag(name:"qod_type", value:"remote_banner");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("find_service.nasl", "gb_xm_easy_personal_ftp_detect.nasl");
  script_mandatory_keys("XM-Easy-Personal-FTP/Ver");

  script_tag(name:"impact", value:"Successful exploitation will let the authenticated user create
  recursive directories and crash the FTP Server.");

  script_tag(name:"affected", value:"Dxmsoft XM Easy Personal FTP Server version 5.8.0 and prior.");

  script_tag(name:"insight", value:"This flaw is due to improper validation check while creating
  recursive directories by an authenticated user inside the root folder of the FTP server.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");

  script_tag(name:"summary", value:"XM Easy Personal FTP Server is prone to a denial of service (DoS) vulnerability.");

  script_tag(name:"solution_type", value:"WillNotFix");

  exit(0);
}

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

xmFTPVer = get_kb_item("XM-Easy-Personal-FTP/Ver");
if(xmFTPVer != NULL)
{
  if(version_is_less_equal(version:xmFTPVer, test_version:"5.8.0")){
    security_message(port:0);
  }
}