osTicket < 1.2.7 Attachment Viewing Vulnerability

# Copyright (C) 2005 George A. Theall
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:osticket:osticket";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.13648");
  script_version("2022-05-12T09:32:01+0000");
  script_tag(name:"last_modification", value:"2022-05-12 09:32:01 +0000 (Thu, 12 May 2022)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_cve_id("CVE-2004-0613");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/10586");

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

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

  script_name("osTicket < 1.2.7 Attachment Viewing Vulnerability");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2004 George A. Theall");
  script_family("Web application abuses");
  script_dependencies("osticket_http_detect.nasl", "no404.nasl");
  script_mandatory_keys("osticket/http/detected");
  script_require_ports("Services/www", 80);

  script_tag(name:"summary", value:"The target is running at least one instance of osTicket that
  enables a remote user to view attachments associated with any existing ticket.

  These attachments may contain sensitive information.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"solution", value:"Update to version 1.2.7 or later.");

  exit(0);
}

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

if( ! port = get_app_port( cpe:CPE, service:"www" ) )
  exit( 0 );

host = http_host_name( dont_add_port:TRUE );
if( http_get_no404_string( port:port, host:host ) )
  exit( 0 );

if( ! dir  = get_app_location( cpe:CPE, port:port ) )
  exit( 0 );

if( dir == "/" )
  dir = "";

url = dir + "/attachments/";
req = http_get( item:url, port:port );
res = http_keepalive_send_recv( port:port, data:req );
if( ! res )
  exit( 0 );

if( ereg( pattern:"^HTTP/1\.[01] 200", string:res, icase:TRUE ) && "[DIR]" >< res ) {
  report = http_report_vuln_url( port:port, url:url );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );