bugtraq - WS_FTP 2007 Professional SCP handling format string vulnerability

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Message-ID: <148a9285143f12a36c71559edba93492.qmail@home.pl>
Date: Fri, 26 Jan 2007 23:55:08 +0100
From: "Michal Bucko" <michal.bucko@...k.pl>
To: bugtraq@...urityfocus.com
Subject: WS_FTP 2007 Professional SCP handling format string vulnerability

Synopsis: WS_FTP 2007 Professional SCP handling format string vulnerability
Product: WS_FTP 2007 Professional
Vendor: Ipswitch

I. Background

"[..]Transfer files anywhere, anytime, with complete security.

    * Lightning fast transfer speeds
    * Industry leading security
    * Time saving features include schedule, backup, and email 
notifications[..]"

II. Problem Description
Remote code execution is possible.

III. Details
SCP handling module is vulnerable to format string vulnerability.
Opening a specially crafted SCP file with WS_FTP 2007 script handler
might lead to arbitrary code execution. The specially crafted file 
uses the WS_FTP script command "SHELL" and executes the file with
the specially crafted name. The file is access using "file://".

Kind regards,

Michal Bucko (sapheal)