TippingPoint Zero Day Initiative
 

Adobe Shockwave Invalid Offset Memory Corruption Remote Code Execution Vulnerability

ZDI-10-087: May 11th, 2010

CVE ID

CVSS Score

Affected Vendors

Affected Products

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Shockwave. User interaction is required in that a target visit a malicious website.

The specific flaw exists within the code responsible for parsing Director files. The vulnerable function is exported as an ordinal from the iml32.dll module. Ordinal 1409 trusts a value from the file as an offset and updates pointers accordingly. By crafting a large enough value and seeking the file pointer past the end of a buffer this can be abused to corrupt heap memory. An attacker can abuse this to execute arbitrary code under the context of the user running the browser.

Vendor Response

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

Disclosure Timeline

    2010-02-02 - Vulnerability reported to vendor
    2010-05-11 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous