ZDI-11-050: IBM Informix Dynamic Server SET ENVIRONMENT Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-050

February 7, 2011 - This vulnerability is being disclosed publicly without a patch in accordance with the ZDI 180 day deadline. To view mitigations for this vulnerability please see: http://dvlabs.tippingpoint.com/blog/2011/02/07/zdi-disclosure-ibm

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

-- Affected Vendors:
IBM

-- Affected Products:
IBM Informix

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 6553. 
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 IBM Informix Database Server. SQL query
execution privileges are required to exploit this vulnerability.

The specific flaw exists within the oninit process bound to TCP port
9088 when processing the arguments to the USELASTCOMMITTED option in a
SQL query. User-supplied data is copied into a stack-based buffer
without proper bounds checking resulting in an exploitable overflow.
Exploitation can result in arbitrary code execution under the context of
the database server.

-- Disclosure Timeline:
2008-11-10 - Vulnerability reported to vendor
2011-02-07 - Public release of advisory

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

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