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Re: Apache Http Server Reveals Script Source Code to Remote Users And Any Users Can Access The Forbidden Directory ("/WEB-INF/")


From: André Malo <nd () perlig de>
Date: Thu, 12 Feb 2004 22:46:30 +0100

* "Oliver Schneider" <Borbarad () gmxpro net> wrote:

Right. On Unix "WEB-INF" and "WEB-INF.." are two different, legal file
names. On Windows, trailing dots seem to be ignored, so "WEB-INF" and
"WEB-INF.." are just two names for the same file. This also works if the
filename already has an extension, so for example "foo.html" and
"foo.html....." are the same file, too. I wonder whether that can be
exploited, too: Get the contents of a CGI script by requesting
"foo.cgi."?
I checked it on our Windows 2000 Server running Apache 2.0.48, it didn't
work for the .pl-scripts.
I.e. "download.pl." instead of "download.pl" gave the output of the actual
script.

In fact, I could not find any situation running pure apache where it occurs.
So I suspect the problem occurs only with the foreign resin handler which
seems to do its own mapping :-(

nd


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