TippingPoint Zero Day Initiative

IBM Rational Rhapsody BBFlashBack.Recorder.1 TestCompatibilityRecordMode Remote Code Execution Vulnerability

ZDI-12-030: February 8th, 2012


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12043. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of IBM Rational Rhapsody. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within BB FlashBack Recorder.dll. Uninitialized pointers may be passed as arguments to TestCompatibilityRecordMode() which allows a remote attacker to reliably corrupt controlled memory regions. This behavior can be exploited to remotely execute arbitrary code in the context of the user running the browser.

Vendor Response

IBM has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2011-06-29 - Vulnerability reported to vendor
    2012-02-08 - Coordinated public release of advisory


This vulnerability was discovered by:
    Andrea Micalizzi aka rgod