full-disclosure - ZDI-10-032: SAP MaxDB Malformed Handshake Request Remote Code Execution Vulnerability

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Message-ID: <EE499D69B3D0714590B6FE9762B046110388145987@emb01.unity.local>
Date: Tue, 16 Mar 2010 11:56:30 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>, 
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-10-032: SAP MaxDB Malformed Handshake Request
 Remote Code Execution Vulnerability

ZDI-10-032: SAP MaxDB Malformed Handshake Request Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-032
March 16, 2010

-- Affected Vendors:
SAP

-- Affected Products:
SAP MaxDB

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9403. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of SAP MaxDB. Authentication is not required to
exploit this vulnerability.

The specific flaw exists within the serv.exe process which listens by
default on TCP port 7210. The process trusts a value from a handshake
packet and uses it as a length when copying data to the stack. If
provided a malicious value and packet data, this can be leveraged to
execute arbitrary code under the context of the SYSTEM user.

-- Vendor Response:
SAP states:
A solution was provided via SAP note 1409425
(https://service.sap.com/sap/support/notes/1409425)

-- Disclosure Timeline:
2009-11-09 - Vulnerability reported to vendor
2010-03-16 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * AbdulAziz Hariri of Insight Technologies

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

    http://twitter.com/thezdi
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