SAP sapstartsrv Denial of Service

[cybseclabs () cybsec com]

Advisory Name: SAP sapstartsrv Denial of Service
=============

Vulnerability Class: Denial of Service
====================

Release Date: 12-10-2009
=============

Affected Applications: SAP Kernel 6.40, 7.00, 7.01, 7.10, 7.11 and 7.20.
Other versions may also be affected.
=====================

Affected Platforms: All SAP platforms running sapstartsrv
===================

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

Severity: Medium
=========

Researcher: CYBSEC-Labs Team
===========

Vendor Status: Confirmed. Updated Released
=============

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

Researcher's site Post:
http://www.cybsec.com/vuln/CYBSEC_SAP_sapstartsrv_DoS.pdf
=========================

Vulnerability Description:
==========================
In SAP instances, the sapstartsrv service provides a Web SAP Management
Console interface for remote administration. Due to a failure in the
processing of specially crafted requests, it is possible to remotely
shutdown the associated process.

Proof of Concept:
=================
A PoC was developed and was provided to the vendor for analysis.

Impact:
=======
Exploitation of this vulnerability would allow a remote attacker to deny
access to the SAP Management Console, interfering with the administrators'
operation.

Solution:
=========
SAP has released patches to address this vulnerability. Affected customers
should apply the patches immediately. More information can be found on SAP
Note 1302231.

Vendor Response:
================
2009-02-02: CYBSEC contacted Vendor.
2009-02-12: Vendor confirmed Vulnerability.
2009-02-13: Vendor Releases Patches.
2009-12-10: Advisory Public Disclosure.

Contact Information:
====================
For more information regarding the vulnerability feel free to contact the
CYBSEC Labs Team (cybseclabs <at> cybsec <dot> com), who will provide any
further information that may be required.

About CYBSEC S.A. Security Systems

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of expertise. More than 350 clients in Latin America, Europe and USA
guarantee our commitment.

Our Professional Services includes SAP Security, Secure Configuration, Web
Applications Security, Security Audit (SOX, PCI and ISO 27001) and
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Beyond professional services, CYBSEC is continuously researching new
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with high quality information exchange.

For more information regarding CYBSEC, please visit www.cybsec.com
(c) 2009 - CYBSEC



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