TippingPoint Zero Day Initiative

Microsoft Internet Explorer JScript arguments Invocation Memory Corruption Vulnerability

ZDI-09-062: September 8th, 2009


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8436. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.

The specific flaw exists when parsing the jscript keyword "arguments". Because the arguments object is not available until a certain time, invoking it can result in memory corruption. Successful exploitation of this vulnerability can lead to a remote system compromise under the credentials of the current user.

Vendor Response

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

Disclosure Timeline

    2009-04-28 - Vulnerability reported to vendor
    2009-09-08 - Coordinated public release of advisory


This vulnerability was discovered by:
    ling&wushi of team509