shell bypass 403

GrazzMean Shell

: /usr/lib/kernel/install.d/ [ drwxr-xr-x ]
Uname: Linux yisu-647059427c03a 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 x86_64
Software: nginx/1.22.1
PHP version: 7.3.31 [ PHP INFO ] PHP os: Linux
Server Ip: 103.146.158.90
Your Ip: 216.73.216.141
User: www (1000) | Group: www (1000)
Safe Mode: OFF
Disable Function:
passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv

name : 50-dracut.install
#!/bin/sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh

if [[ -f /etc/kernel/cmdline ]]; then
    readarray -t BOOT_OPTIONS < /etc/kernel/cmdline
fi

if ! [[ "${BOOT_OPTIONS[@]}" ]]; then
    readarray -t BOOT_OPTIONS < /proc/cmdline
fi

unset noimageifnotneeded

for ((i=0; i < "${#BOOT_OPTIONS[@]}"; i++)); do
    if [[ ${BOOT_OPTIONS[$i]} == root\=PARTUUID\=* ]]; then
        noimageifnotneeded="yes"
        break
    fi
done

ret=0
case "$1" in
    add)
	dracut ${noimageifnotneeded:+--noimageifnotneeded} "$3"/initrd "$2"
        ret=$?
	;;
    remove)
        rm -f -- "$3"/initrd
        ret=$?
	;;
esac
exit $ret
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