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TITLE:
Computalynx CProxy Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA14461

VERIFY ADVISORY:
http://secunia.com/advisories/14461/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information, DoS

WHERE:
>From local network

SOFTWARE:
Computalynx CProxy 3.x
http://secunia.com/product/4736/

DESCRIPTION:
Kristof Philipsen has reported a vulnerability in Computalynx CProxy,
which can be exploited by malicious people to disclose sensitive
information and cause a DoS (Denial of Service).

The vulnerability is caused due to an input validation error making
it possible to disclose arbitrary files outside the cache directory
via directory traversal attacks.

Example:
GET http://../../[file] HTTP/1.0

This can also be exploited to crash the application by requesting an
executable file outside the cache directory.

The vulnerability has been reported in versions 3.3.x and 3.4.x
(3.4.4). Other versions may also be affected.

SOLUTION:
Use another product.

PROVIDED AND/OR DISCOVERED BY:
Kristof Philipsen

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