# MA-253.102010: MyCERT Alert - Critical Vulnerability in Adobe Shockwave Player

**Date:** 22 Oct 2010  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-253.102010  
**Advisory ID:** MA-253.102010

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1.0 Introduction
A critical vulnerability (rcsL chunk remote code execution) has been identified in the latest version of Adobe Shockwave Player (11.5.8.612).
This vulnerability allows a remote attacker to execute arbitrary code on a vulnerable version of Adobe Shockwave Player. User interaction is required where a user must visit a malicious web site, which is embedded with a specially crafted SWF file. This vulnerability would cause the application to crash and could potentially allow an attacker to take control of the affected system.
MyCERT is aware that a '0-day' exploit is available on the Internet at the time of the publication of this advisory. From the exploit sample that we’ve found, javascript is require to be enabled in order to make the exploitation process more reliable.
2.0 Impact
By exploiting this vulnerability, an attacker could execute arbitrary code on vulnerable installations of Adobe Shockwave and gain the same privilege as the user. This vulnerability could be exploited to install malware on the user's computer.
3.0 Affected Products
Products listed below are vulnerable to this vulnerability:
- Adobe Shockwave Player 11.5.8.612 and earlier versions
4.0 Recommendation
At the time of this writing, Adobe has not released any patches to address this vulnerability. However, users are recommended to disable Flash support in the web browsers.
To disable the Adobe Flash Player support in the browser:
- For Internet Explorer user, download and install Toggle Flash plugin http://flash.melameth.com and allow or unblock Flash content only trusted site.
- For Mozilla Firefox user, download and install FlashBlock plugin from http://flashblock.mozdev.org/ and allow or unblock Flash content only trusted site.
Users are also recommended to browse the Internet with least privilege user to limit the execution of the malicious file and do not open attachment or browse to unknown website received via email from unknown person.
MyCERT generally advise users of this product to keep themselves updated with the latest security announcements by the vendor. In case the public receives any suspicious URL, .DCR file or .DIR file, and requires our further analysis, please reach us through the following channels:
E-mail : [[email protected]](/cdn-cgi/l/email-protection)
Phone : 1-300-88-2999 (monitored during business hours)
Fax : +603 89453442
Handphone : +60 19 2665850 (24x7 call incident reporting)
SMS : CYBER999 REPORT <EMAIL> <COMPLAINT> to 15888
Business Hours : Mon - Fri 08:30 -17:30 MYT
Web: https://www.mycert.org.my
5.0 References
- http://www.exploit-db.com/exploits/15296/
- http://www.zerodayinitiative.com/advisories/ZDI-10-162/