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Kiwi CatTools TFTP Server Directory Traversal Vulnerability
Secunia Advisory: SA24103
Release Date: 2007-02-09
Last Update: 2007-02-14
Popularity: 9,807 views

Critical:
Moderately critical
Impact: Exposure of system information
Exposure of sensitive information
System access
Where: From local network
Solution Status: Vendor Patch

Software:Kiwi CatTools 3.x

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CVE reference:CVE-2007-0888
CVE-2007-0889


Description:
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:
2007-02-13: Added CVE reference.
2007-02-14: Added vendor link and updated "Solution" and "Solution Status" sections to include fix information.

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


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