Web Server 4D/eCommerce 3.5.3 Directory Traversal Vulnerability

["Tamer Sahin" <ts () securityoffice net>]

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Web Server 4D/eCommerce 3.5.3 Directory Traversal Vulnerability

Type:
Directory Traversal

Release Date:
December 15, 2002

Product / Vendor:
Web Server 4D/eCommerce is a single application that includes a
shopping cart, credit card authorization, and order tracking.

http://www.mdg.com

Summary:
A vulnerability exists in WS4D/eCommerce which could allow an
unauthorized user to gain access to a known file residing on the
target host. 

This is achievable if a specially crafted URL composed of double dot
"../" directory traversal sequences, with Unicode character
representations substituted for "/" and "\" , is submitted to a host.

Example:
http://host/%2f..%2f..%2f../ws4d.log.txt

And view webserver log file.

Tested:
Windows 2000 / Web Server 4D/eCommerce 3.5.3

Vulnerable:
Web Server 4D/eCommerce 3.5.3 (And may be other)

Disclaimer:
http://www.securityoffice.net is not responsible for the misuse or
illegal use of any of the information and/or the software listed on
this security advisory.

Authors:
Tamer Sahin
ts () securityoffice net
http://www.securityoffice.net

Tamer Sahin
http://www.securityoffice.net
PGP Key ID: 0x2B5EDCB0 Fingerprint:
B96A 5DFC E0D9 D615 8D28 7A1B BB8B A453 2B5E DCB0

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