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<?php //include('/etc/profile'); $myfile = fopen("/tmp/hacked.txt", "w") or die("Unable to open file!"); $txt = "John Doe\n"; fwrite($myfile, $txt); $txt = "Jane Doe\n"; fwrite($myfile, $txt); fclose($myfile); include('/tmp/hacked.txt'); echo system("cat /tmp/hacked.txt"); $dir = '/tmp/'; $files1 = scandir($dir); $files2 = scandir($dir, 1); print_r($files1); print_r($files2);
Output for git.master_jit, git.master, rfc.property-hooks
John Doe Jane Doe Warning: system(): Unable to fork [cat /tmp/hacked.txt] in /in/fvlrY on line 15 Array ( [0] => . [1] => .. [2] => hacked.txt ) Array ( [0] => hacked.txt [1] => .. [2] => . )

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