TippingPoint Zero Day Initiative

Oracle Java IE Browser Plugin docbase Parameter Remote Code Execution Vulnerability

ZDI-10-206: October 12th, 2010


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10241. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of the Oracle Java Runtime. 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 the JP2IEXP.dll responsible for handling the Java plugin within Internet Explorer. When an applet is embedded within a page, the code within this module parses out the docbase parameter and copies it into a fixed-length buffer located on the stack. An attacker can overflow this buffer and execute remote code under the context of the user running the browser.

Vendor Response

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

Disclosure Timeline

    2010-07-20 - Vulnerability reported to vendor
    2010-10-12 - Coordinated public release of advisory


This vulnerability was discovered by:
    Stephen Fewer of Harmony Security (www.harmonysecurity.com)