Nicob has discovered a vulnerability in Kiwi CatTools, 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.

Example:
get [character]//..//..//[file]
put [character]//..//..//[file]

The vulnerability is confirmed in version 3.2.7. Other versions may also be affected.

Solution
Apply patch or update to version 3.2.9 or later. Please see vendor's advisory for details.

Provided and/or discovered by
Nicob

Changelog
Further details available to Secunia VIM customers

Original Advisory
Kiwi Enterprises:
http://www.kiwisyslog.com/kb/idx/5/178/article/

Full-Disclosure:
http://lists.grok.org.uk/pipermail/full-disclosure/2007-February/052288.html

Deep Links
Links available to Secunia VIM customers