bugtraq - CYBSEC - Security Pre-Advisory: Phishing Vector in SAP BC

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Date: Wed, 15 Feb 2006 10:32:11 -0300
From: Leandro Meiners <lmeiners@...sec.com>
To: bugtraq@...urityfocus.com
Subject: CYBSEC - Security Pre-Advisory: Phishing Vector in SAP BC

(The following advisory is also available in PDF format for download at:
http://www.cybsec.com/vuln/CYBSEC_Security_Pre-Advisory_Phishing_Vector_in_SAP_BC.pdf )

CYBSEC S.A.
www.cybsec.com

Pre-Advisory Name: Phishing Vector in SAP BC (Business Connector)

Vulnerability Class: Phishing Vector / Improper Input Validation

Release Date: 02/15/2006

Affected Applications:  
* SAP BC Core Fix 7 (and below)

Affected Platforms: Platform-Independent

Local / Remote: Remote

Severity: Low

Author:  Leandro Meiners.

Vendor Status: Confirmed, patch released.

Reference to Vulnerability Disclosure Policy: 
http://www.cybsec.com/vulnerability_policy.pdf

Product Overview:
=================

SAP Business Connector (SAP BC) is a middleware application based on B2B
integration server from webMethods. It enables communication between SAP
applications and SAP R/3 and non-SAP applications, by making all SAP
functions accessible to business partners over the Internet as an
XML-based service.
The SAP Business Connector uses the Internet as a communication platform
and XML or HTML as the data format. It integrates non-SAP products by
using an open, non-proprietary technology.

Vulnerability Description:
==========================

SAP BC was found to provide a vector to allow Phishing scams against the
SAP BC administrator.

Technical Details:
==================

Technical details will be released three months after publication of
this pre-advisory. This was agreed upon with SAP to allow their clients
to upgrade affected software prior to the technical knowledge been
publicly available. 

Impact:
=======

This can be used to mount a Phishing scam by sending a link, that if
clicked by the administrator (while logged in, or logs in after
clicking) will load the attacker's site webpage inside an HTML frame.

Solutions:
==========

SAP released a patch regarding this issue, which requires Server Core
Fix 7. Details can be found in SAP note 908349.

Vendor Response:
================

* 12/06/2005: Initial Vendor Contact.
* 12/07/2005: Technical details for the vulnerabilities sent to vendor.
* 12/19/2005: Solutions provided by vendor.
* 02/15/2006: Coordinate release of pre-advisory without technical
details.
* 05/15/2006: Coordinate release of advisory with technical details.

Contact Information:
====================

For more information regarding the vulnerability feel free to contact
the author at lmeiners<at>cybsec.com. Please bear in mind that technical
details will be disclosed three months after the release of this
pre-advisory, so such questions won't be answered until then. 

For more information regarding CYBSEC: www.cybsec.com

----------------------------
Leandro Meiners
CYBSEC S.A. Security Systems
E-mail: lmeiners@...sec.com
Tel/Fax: [54-11] 4382-1600
Web: http://www.cybsec.com
PGP-Key: http://pgp.mit.edu:11371/pks/lookup?search=lmeiners&op=index

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