TippingPoint Zero Day Initiative
 

IBM Informix Dynamic Server Authentication Password Stack Overflow Vulnerability

ZDI-08-012: March 13th, 2008

CVE ID

Affected Vendors

Affected Products

    Informix

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 not required to exploit this vulnerability.

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 supplied user password. An attacker can provide a overly long password and overflow a stack based buffer resulting in arbitrary code execution.

Vendor Response

IBM states:

IBM has released an update available at the following URLs:

http://www-1.ibm.com/support/docview.wss?uid=swg1IC55210
http://www-1.ibm.com/support/docview.wss?uid=swg1IC55209


Disclosure Timeline

    2007-11-07 - Vulnerability reported to vendor
    2008-03-13 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous