====================================================================== AutoIndex <= 2.2.2 Cross Site Scripting and Denial of Service ====================================================================== Author: L4teral <l4teral [4t] gmail com> Impact: Cross Site Scripting Denial of Service (DoS) Status: patch available ------------------------------ Affected software description: ------------------------------ Application: AutoIndex Version: <= 2.2.2/2.2.3 Vendor: http://autoindex.sourceforge.net -------------- Vulnerability: -------------- 1. The variable $_SERVER['PHP_SELF'] is not properly sanitized leading to cross site scripting. 2. The use of unsanitized user input causes an error in the recursive calculation of the size of a directory leading to cpu time/memory consumption until the process gets killed. ------------ PoC/Exploit: ------------ 1. http://<host>/AutoIndex/index.php/"><script>alert(document.cookie)</scri pt> 2. http://<host>/AutoIndex/index.php?dir=%00 --------- Solution: --------- update to version 2.2.4. --------- Timeline: --------- 2007-11-05 - vendor informed 2007-11-05 - vendor released version 2.2.3 (fixing XSS) 2007-11-09 - vendor released version 2.2.4 (fixing DoS) 2007-11-12 - public disclosure