Bookeen Notea BK_R_1.0.5_20210608 Directory Traversal

`# Exploit Title: Bookeen Notea - Directory Traversal  
# Date: December 2021  
# Exploit Author: Clement MAILLIOUX  
# Vendor Homepage: https://bookeen.com/  
# Software Link: N/A  
# Version: BK_R_1.0.5_20210608  
# Tested on: Bookeen Notea (Android 8.1)  
# CVE : CVE 2021-45783  
  
# The affected version of the Bookeen Notea System Update is prone to directory traversal vulnerability related to its note Export function.  
# The vulnerability can be triggered like so :   
# - Create a note or use an existing note on the device  
# - rename this note ../../../../../../  
# - keep touching the note until a menu appears  
# - touch to select "export"  
# - touch "View"  
  
# Now you can access and explore the device filesystem.  
  
`