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TITLE:
NetDecision TFTP Server Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA35131

VERIFY ADVISORY:
http://secunia.com/advisories/35131/

DESCRIPTION:
Rob Kraus has discovered a vulnerability in NetDecision TFTP Server,
which can be exploited by malicious people to disclose sensitive
information or compromise a vulnerable system.

The vulnerability is caused due to an input validation error within
the TFTP server. This can be exploited to upload or download files to
and from arbitrary locations outside the TFTP root via specially
crafted directory traversal sequences.

The vulnerability is confirmed in NetDecision TFTP Server 4.2. Other
versions may also be affected.

SOLUTION:
Restrict network access to the service.

PROVIDED AND/OR DISCOVERED BY:
Rob Kraus

ORIGINAL ADVISORY:
http://www.princeofnigeria.org/blogs/index.php/2009/05/17/netdecision-tftp-server-4-2-tftp-directo?blog=1

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