From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Jul 08 2003 - 10:11:08 CDT

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TITLE:
ezTrans Directory Traversal Vulnerability

READ ONLINE:
http://www.secunia.com/advisories/9210/

CRITICAL:
Moderately critical

IMPACT:
Exposure of system information, Exposure of sensitive information

WHERE:
From remote

SOFTWARE:
ezTrans 2001

DESCRIPTION:
A vulnerability has been identified in ezTrans, which can be
exploited by malicious people to download arbitrary files from a
vulnerable system.

The vulnerability is caused due to an input validation error in
"download.php". This can be exploited via a classical directory
traversal attack to download files outside the web root with the
privileges of the web service.

Examples:
http://[victim]/question/crm/download.php?filename=../../../../../../etc/passwd
http://[victim]/download.php?filename=../../../../../../etc/passwd

SOLUTION:
The vendor has issued a fix:
http://www.cssoft.co.kr/down/ezJ2KUpgrade_0721.EXE

REPORTED BY / CREDITS:
Jeremy Bae (STG Security SSR Team).

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