TYPSoft directory traversal flaw

# SPDX-FileCopyrightText: 2004 David Maciejak
# 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("1.3.6.1.4.1.25623.1.0.14706");
  script_version("2023-08-01T13:29:10+0000");
  script_tag(name:"last_modification", value:"2023-08-01 13:29:10 +0000 (Tue, 01 Aug 2023)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/2489");
  script_cve_id("CVE-2002-0558");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_name("TYPSoft directory traversal flaw");
  script_category(ACT_GATHER_INFO);
  script_tag(name:"qod_type", value:"remote_banner");
  script_copyright("Copyright (C) 2004 David Maciejak");
  script_family("FTP");
  script_dependencies("ftpserver_detect_type_nd_version.nasl");
  script_require_ports("Services/ftp", 21);
  script_mandatory_keys("ftp/typsoft/detected");

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

  script_tag(name:"solution", value:"Use a different FTP server or upgrade to the newest version.");

  script_tag(name:"summary", value:"The remote host seems to be running TYPSoft FTP earlier than 0.97.5

  This version is prone to directory traversal attacks.");

  script_tag(name:"impact", value:"An attacker could send specially crafted URL to view arbitrary
  files on the system.");

  exit(0);
}

include("ftp_func.inc");
include("misc_func.inc");
include("port_service_func.inc");

port = ftp_get_port(default:21);
banner = ftp_get_banner(port:port);
if( ! banner ) exit(0);

if(egrep(pattern:".*TYPSoft FTP Server (0\.8|0\.9[0-6][^0-9]|0\.97[^0-9]|0\.97\.[0-4][^0-9])", string:banner) )
  security_message(port);