SecurityReason - IBM Informix Dynamic Server DBPATH Buffer Overflow Vulnerability

Advisory Text :

ZDI-08-011: IBM Informix Dynamic Server DBPATH Buffer Overflow

Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-08-011

March 13, 2008

-- CVE ID:

CVE-2008-0727

-- 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 5723.

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

systems with vulnerable installations of IBM's Informix Dynamic Server.

User interaction is not required to exploit this vulnerability.

Authentication is required in that an attacker must have database

connection priviliges.

The specific flaw exists in the oninit.exe process that listens by

default on TCP port 1526. During authentication, the process does not

validate the length of the DBPATH variable. An attacker can provide a

overly long variable name and overflow a global buffer, overwriting

function pointers leading to arbitrary code execution.

-- Vendor Response:

IBM has issued an update to correct this vulnerability. More

details can be found at:

http://www-1.ibm.com/support/docview.wss?uid=swg1IC55208

http://www-1.ibm.com/support/docview.wss?uid=swg1IC55207

-- Disclosure Timeline:

2007-11-07 - Vulnerability reported to vendor

2008-03-13 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by:

* Anonymous

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