shell bypass 403

UnknownSec Shell

: /sys/dev/char/4:76/subsystem/ttyS27/device/ [ drwxr-xr-x ]
upload mass deface mass delete console info server
name last edit size owner:downer permission options
..
driver 2026-02-21 03:27:41 dir root:root drwxr-xr-x
power 2026-02-21 05:34:46 dir root:root drwxr-xr-x
subsystem 2026-02-21 01:35:11 dir root:root drwxr-xr-x
tty 2026-02-21 02:33:41 dir root:root drwxr-xr-x
uevent 2026-02-21 05:38:32 4 KB root:root -rw-r--r--
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