ZDI-11-113: Zend Server Java Bridge Design Flaw Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-113

March 28, 2011

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

-- Affected Vendors:
Zend

-- Affected Products:
Zend Zend Server

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10610. 
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 Zend Server. Authentication is not required
to exploit this vulnerability. 

The specific flaw exists within the Zend Java Bridge v3.1 component of
the Zend Server framework. The javamw.jar service accepts TCP requests
on port 10001 by default. With nothing more than the knowledge of the
proprietary communication protocol used by the Zend Server Java Bridge,
it is possible to send arbitrary Java code to javamw.jar service and
remotely execute these commands under the context of the user running
the web server process.

-- Vendor Response:
Zend states:
Zend Server Java Bridge Hotfix
http://www.zend.com/en/products/server/downloads

Mention and notification can also be found here:
http://www.zend.com/en/products/server/updates

-- Disclosure Timeline:
2010-09-30 - Vulnerability reported to vendor
2011-03-28 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Luca Carettoni

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