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AutoIndex <= 2.2.2 Cross Site Scripting and Denial of Service
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Author:          L4teral <l4teral [4t] gmail com>
Impact:          Cross Site Scripting
                 Denial of Service (DoS)
Status:          patch available


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Affected software description:
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Application:     AutoIndex
Version:         <= 2.2.2/2.2.3
Vendor:          http://autoindex.sourceforge.net


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Vulnerability:
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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.


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PoC/Exploit:
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1.
http://<host>/AutoIndex/index.php/"><script>alert(document.cookie)</script>

2.
http://<host>/AutoIndex/index.php?dir=%00


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Solution:
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update to version 2.2.4.


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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