Advisory Details

June 28th, 2012

SAP Netweaver ABAP msg_server.exe Opcode 0x43 Remote Code Execution Vulnerability

ZDI-12-111
ZDI-CAN-1394

CVE ID
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS SAP
AFFECTED PRODUCTS NetWeaver
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12407. For further product information on the TippingPoint IPS: 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 msg_server.exe listening on 3900 by default. When the msg_server parses a message with opcode 0x43 and sub-opcode 0x04 it uses a user suplied size field to copy a string into a static sized stack buffer. The resulting buffer overflow can lead to remote code execution under the context of the process.

ADDITIONAL DETAILS SAP has issued an update to correct this vulnerability. More details can be found at:
https://websmp230.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=1649840
DISCLOSURE TIMELINE
  • 2011-10-28 - Vulnerability reported to vendor
  • 2012-06-28 - Coordinated public release of advisory
CREDIT e6af8de8b1d4b2b6d5ba2610cbf9cd38
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