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ZDI-12-112 : SAP Netweaver ABAP msg_server.exe Parameter Name Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-112
June 28, 2012

- -- CVE ID:


- -- CVSS:
9, AV:N/AC:L/Au:N/C:P/I:P/A:C

- -- Affected Vendors:
SAP

- -- Affected Products:
SAP NetWeaver


- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 12407.
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 NetWeaver ABAP. Authentication is not
required to exploit this vulnerability.

The specific flaw exists within the way SAP NetWeaver handles packages with
opcode 0x43. If a package with sub opcode 0x4 contains a Parameter Name
string NetWeaver will eventually write a \x00 byte onto the stack to mark
the end of the string. The location of this null byte is dependent on user
supplied data and the resulting stack corruption can lead to remote code
execution under the context of the running processs.

- -- Vendor Response:
SAP has issued an update to correct this vulnerability. More details can be
found at:
http://www.sdn.sap.com/irj/sdn/index?rid=/webcontent/uuid/c05604f6-4eb3-2d1
0-eea7-ceb666083a6a#section40


- -- Disclosure Timeline:
2011-10-28 - Vulnerability reported to vendor
2012-06-28 - Coordinated public release of advisory


- -- Credit:
This vulnerability was discovered by:
* e6af8de8b1d4b2b6d5ba2610cbf9cd38


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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

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