osCommerce Malformed Session ID XSS Vulnerability

# OpenVAS Vulnerability Test
# $Id: oscommerce_session_id_xss.nasl 6063 2017-05-03 09:03:05Z teissa $
# Description: osCommerce Malformed Session ID XSS Vulnerability
#
# Authors:
# Noam Rathaus
#
# Copyright:
# Copyright (C) 2003 Noam Rathaus
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# as published by the Free Software Foundation
#
# 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.
#

tag_summary = "osCommerce is an online shop e-commerce solution under on going development 
by the open source community. Its feature packed out-of-the-box installation
allows store owners to setup, run, and maintain their online stores with 
minimum effort and with absolutely no costs or license fees involved.

osCommerce is vulnerable to a XSS flaw. The flaw can be exploited when a 
malicious user passes a malformed session ID to URI.";

tag_solution = "This is the response from the developer. To fix the issue, the $_sid parameter
needs to be wrapped around tep_output_string() in the tep_href_link() function
defined in includes/functions/html_output.php.

Before:
if (isset($_sid)) {
$link .= $separator . $_sid;
}

After:
if (isset($_sid)) {
$link .= $separator . tep_output_string($_sid);
}

osCommerce 2.2 Milestone 3 will redirect the user to the index page when 
a malformed session ID is used, so that a new session ID can be generated.";


# From: JeiAr [[email protected]]
# Subject: osCommerce Malformed Session ID XSS Vuln
# Date: Wednesday 17/12/2003 19:59

if(description)
{
  script_id(11958);
  script_version("$Revision: 6063 $");
  script_tag(name:"last_modification", value:"$Date: 2017-05-03 11:03:05 +0200 (Wed, 03 May 2017) $");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
 script_cve_id("CVE-2003-1219");
 script_bugtraq_id(9238);
  name = "osCommerce Malformed Session ID XSS Vulnerability";
  script_name(name);
 

  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
 
  summary = "Detect osCommerce Malformed Session ID XSS";
 
  script_category(ACT_GATHER_INFO);
  script_tag(name:"qod_type", value:"remote_analysis");
 
  script_copyright("This script is Copyright (C) 2003 Noam Rathaus");

  family = "General";
  script_family(family);
  script_dependencies("oscommerce_detect.nasl");
  script_require_keys("Software/osCommerce");
  script_require_ports("Services/www", 80);
  exit(0);
}

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

CPE = 'cpe:/a:oscommerce:oscommerce';

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

quote = raw_string(0x22);

function check_dir(path)
{
 req = http_get(item:string(path, "?osCsid=%22%3E%3Ciframe%20src=foo%3E%3C/iframe%3E"), port:port);
#  display("req: ", req, "\n");

 res = http_keepalive_send_recv(port:port, data:req, bodyonly:1);
#  display("res: ", res, "\n");

 if ( res == NULL ) exit(0);
 find = string("\\?osCsid=", quote, "><iframe src=foo></iframe>");

 if (egrep(pattern:find, string:res) && ("Powered by" >< res) && ("osCommerce" >< res))
 {
  security_message(port);
  exit(0);
 }
}

check_dir(path:dir);