TippingPoint Zero Day Initiative

Adobe Shockwave Director rcsL Chunk Remote Code Execution Vulnerability

ZDI-10-162: August 24th, 2010


CVSS Score

Affected Vendors

Affected Products

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of the Adobe Shockwave Player. 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 parsing of the rcsL RIFF chunk within director files of extension DIR or DCR. While parsing this undocumented structure, the application blindly trusts an offset value and uses it while operating on heap memory. An attacker can abuse this to corrupt a function pointer which can lead to arbitrary code execution under the context of the user running the web browser.

Vendor Response

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

Disclosure Timeline

    2010-06-30 - Vulnerability reported to vendor
    2010-08-24 - Coordinated public release of advisory


This vulnerability was discovered by:
    Damian Put