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CYBSEC - Security Pre-Advisory: SAP Internet Graphics Service (IGS) Remote Buffer Overflow
From: Mariano Nuñez Di Croce <mnunez () cybsec com>
Date: Thu, 10 Aug 2006 15:47:39 -0300

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


CYBSEC S.A.
www.cybsec.com

Pre-Advisory Name: SAP Internet Graphics Service (IGS) Remote Buffer Overflow
==================

Vulnerability Class: Buffer Overflow
====================

Release Date: 08/10/2006
=============

Affected Applications:
======================
* SAP IGS 6.40 Patchlevel <= 15
* SAP IGS 7.00 Patchlevel <= 3

Affected Platforms:
===================
* AIX 64 bits
* HP-UX on IA64 64bit
* HP-UX on PA-RISC 64bit
* Linux on IA32 32bit
* Linux on IA64 64bit
* Linux on Power 64bit
* Linux on x86_64 64bit
* Linux on zSeries 64bit
* OS/400 V5R2M0
* Solaris on SPARC 64bit
* TRU64 64bit
* Windows Server on IA32 32bit
* Windows Server on IA64 64bit
* Windows Server on x64 64bit

Local / Remote: Remote
===============

Severity: High
=========

Author:  Mariano Nuñez Di Croce
=======

Vendor Status:
==============
* Confirmed, update released.

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

Product Overview:
==================
"The IGS provides a server architecture where data from an SAP System or other sources can be used to generate 
graphical or non-graphical output."

It is important to note that IGS is installed and activated by default with the Web Application Server (versions >= 
6.30)

Vulnerability Description:
==========================
A specially crafted HTTP request can trigger a remote buffer overflow in SAP IGS service.

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

Impact:
=======
Under UNIX systems, successful exploitation of this vulnerability may allow an attacker to execute remote code with the 
privileges of the SAP System Administrator account (<SID>adm), allowing him to
take full control of the SAP system installation.

Under Microsoft Windows systems, successful exploitation of this vulnerability may allow an attacker to execute remote 
code with the privileges of the LocalSystem account, allowing him to take full
control of the entire system.

Solutions:
==========
SAP has released patches to address this vulnerability. Affected customers should apply the patches immediately.
More information can be found on SAP Note 968423.

Vendor Response:
================
* 06/02/2006: Initial Vendor Contact.
* 06/09/2006: Vendor Confirmed Vulnerability.
* 07/03/2006: Vendor Releases Update for version 6.40.
* 07/13/2006: Vendor Releases Update for version 7.00.
* 08/10/2006: Pre-Advisory Public Disclosure.

Special Thanks:
===============
Thanks goes to Carlos Diaz and Victor Montero.

Contact Information:
====================
For more information regarding the vulnerability feel free to contact the author at mnunez {at} cybsec.com. Please bear 
in mind that technical details will be disclosed to the general public three
months after the release of this pre-advisory.


For more information regarding CYBSEC: www.cybsec.com
(c) 2006 - CYBSEC S.A. Security Systems
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