KF Web Server /%00 bug

# SPDX-FileCopyrightText: 2002 Michel Arboi
# 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

# References:
# From:"Securiteinfo.com" <[email protected]>
# To:[email protected]
# Date: Sun, 7 Jul 2002 21:42:47 +0200
# Message-Id: <02070721424701.01082@scrap>
# Subject: [VulnWatch] KF Web Server version 1.0.2 shows file and directory content

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.11166");
  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_tag(name:"cvss_base", value:"5.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:P/I:P/A:P");
  script_name("KF Web Server /%00 bug");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2002 Michel Arboi");
  script_family("Web application abuses");
  script_dependencies("find_service.nasl", "httpver.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_tag(name:"solution", value:"upgrade to the latest version of KF Web Server");

  script_tag(name:"summary", value:"Requesting a URL with '/%00' appended to it
  makes some versions of KF Web Server to dump the listing of the
  directory, thus showing potentially sensitive files.");

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

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");

port = http_get_port(default:80);
buffer = http_get(item:"/%00", port:port);
data = http_keepalive_send_recv(port:port, data:buffer);
if(!data)
  exit(0);

if (egrep(string: data, pattern: ".*File Name.*Size.*Date.*Type.*")) {
  security_message(port:port);
  exit(0);
}

exit(99);