ZDI-12-139 : SAP Crystal Reports crystalras.exe OBUnmarshal Remote Code Execution Vulnerability

[ZDI Disclosures <zdi-disclosures () tippingpoint com>]

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ZDI-12-139 : SAP Crystal Reports crystalras.exe OBUnmarshal Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-139
August 17, 2012

- -- CVE ID:


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

- -- Affected Vendors:
SAP

- -- Affected Products:
SAP Crystal Reports

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

The flaw exists within the ebus-3-3-2-7.dll component which is used by the
crystalras.exe service. This process listens on a random TCP port. When
unmarshalling GIOP ORB encapsulated data the process invokes a memcpy
constrained by a user controlled value. A remote attacker can exploit this
vulnerability to execute arbitrary code under the context of the SYSTEM
user.

- -- Vendor Response:
SAP has issued an update to correct this vulnerability. More details can be
found at:
https://service.sap.com/sap/support/notes/1662272

- -- Disclosure Timeline:
2011-11-21 - Vulnerability reported to vendor
2012-08-17 - Coordinated public release of advisory

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

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