Module: Msf::Post::Linux::BusyBox
Instance Method Summary collapse
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#busy_box_file_exist?(file_path) ⇒ Boolean
Checks if the file exists in the target.
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#busy_box_is_writable_dir?(dir_path) ⇒ Boolean
Checks if the directory is writable in the target.
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#busy_box_writable_dir ⇒ String
Checks some directories that usually are writable in devices running busybox.
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#busy_box_write_file(file_path, data, prepend = false) ⇒ Boolean
Writes data to a file.
Methods included from File
#_append_file_powershell, #_append_file_unix_shell, #_can_echo?, #_read_file_meterpreter, #_read_file_powershell, #_read_file_powershell_fragment, #_shell_command_with_success_code, #_unix_max_line_length, #_win_ansi_append_file, #_win_ansi_write_file, #_win_bin_append_file, #_win_bin_write_file, #_write_file_meterpreter, #_write_file_powershell, #_write_file_powershell_fragment, #_write_file_unix_shell, #append_file, #attributes, #cd, #chmod, #copy_file, #dir, #directory?, #executable?, #exist?, #expand_path, #exploit_data, #exploit_source, #file?, #file_local_write, #file_remote_digestmd5, #file_remote_digestsha1, #file_remote_digestsha2, #immutable?, #initialize, #mkdir, #pwd, #read_file, #readable?, #rename_file, #rm_f, #rm_rf, #setuid?, #stat, #upload_and_chmodx, #upload_file, #writable?, #write_file
Methods included from Common
#clear_screen, #cmd_exec, #cmd_exec_get_pid, #cmd_exec_with_result, #command_exists?, #get_env, #get_envs, #initialize, #peer, #report_virtualization, #rhost, #rport
Instance Method Details
#busy_box_file_exist?(file_path) ⇒ Boolean
Msf::Post::File#file? doesnt work because test -f is not available in busybox
Checks if the file exists in the target
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# File 'lib/msf/core/post/linux/busy_box.rb', line 17 def busy_box_file_exist?(file_path) contents = read_file(file_path) if contents.nil? || contents.empty? return false end true end |
#busy_box_is_writable_dir?(dir_path) ⇒ Boolean
Checks if the directory is writable in the target
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# File 'lib/msf/core/post/linux/busy_box.rb', line 30 def busy_box_is_writable_dir?(dir_path) res = false rand_str = Rex::Text.rand_text_alpha(16) file_path = "#{dir_path}/#{rand_str}" cmd_exec("echo #{rand_str}XXX#{rand_str} > #{file_path}") Rex::sleep(0.3) rcv = read_file(file_path) if rcv.include?("#{rand_str}XXX#{rand_str}") res = true end cmd_exec("rm -f #{file_path}") Rex::sleep(0.3) res end |
#busy_box_writable_dir ⇒ String
Checks some directories that usually are writable in devices running busybox
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# File 'lib/msf/core/post/linux/busy_box.rb', line 51 def busy_box_writable_dir dirs = %w(/etc/ /mnt/ /var/ /var/tmp/) dirs.each do |d| return d if busy_box_is_writable_dir?(d) end nil end |
#busy_box_write_file(file_path, data, prepend = false) ⇒ Boolean
BusyBox commands are limited and Msf::Post::File#write_file doesn't work here, because of it is necessary to implement an specific method.
Writes data to a file
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# File 'lib/msf/core/post/linux/busy_box.rb', line 71 def busy_box_write_file(file_path, data, prepend = false) if prepend dir = busy_box_writable_dir return false unless dir cmd_exec("cp -f #{file_path} #{dir}tmp") Rex::sleep(0.3) end rand_str = Rex::Text.rand_text_alpha(16) cmd_exec("echo #{rand_str} > #{file_path}") Rex::sleep(0.3) unless read_file(file_path).include?(rand_str) return false end cmd_exec("echo \"\"> #{file_path}") Rex::sleep(0.3) lines = data.lines.map(&:chomp) lines.each do |line| cmd_exec("echo #{line.chomp} >> #{file_path}") Rex::sleep(0.3) end if prepend cmd_exec("cat #{dir}tmp >> #{file_path}") Rex::sleep(0.3) cmd_exec("rm -f #{dir}tmp") Rex::sleep(0.3) end true end |