Adobe Flash Player allowScriptAccess protection bypass vulnerability

2006-09-20T00:00:00
ID VU:168372
Type cert
Reporter CERT
Modified 2006-11-14T21:30:00

Description

Overview

A vulnerability in Adobe Flash Player may allow a remote attacker to bypass allowScriptAccess protection.

Description

Adobe Flash Player is a player for the Flash media format and enables frame-based animations with sound to be viewed within a web browser.

According to Adobe:

The __AllowScriptAccess__ parameter of the Macromedia Flash Player controls the ability to perform outbound scripting from within a Flash SWF.
A vulnerability in Adobe Flash Player may allow an attacker to circumvent the allowScriptAccess parameter. The specific cause of the underlying defect is not known.


Impact

By convincing a victim to view a HTML document (web page, HTML email) containing specially crafted Adobe Flash SWF file, an attacker could access content in a different security domain than the one containing the attacker's document.


Solution

Upgrade Flash Player
Adobe has addressed this issue in Adobe Flash Player 9.0.16.0.

Apply updates

Users who are unable to upgrade to Adobe Flash Player 9.0.16.0 should apply the appropriate player update listed in Adobe Security Bulletin APSB06-11.

Users running operating systems that do not support Adobe Flash Player 8 should refer to the updates in Adobe's Flash Player TechNote.

Microsoft has released an update to address this issue. See Microsoft Security Bulletin MS06-069 for more details.


Disable Adobe Flash Player in your web browser

Until it is possible to upgrade to Adobe Flash Player 9.0.16.0 or apply the appropriate update, disabling Adobe Flash Player in the web browser will reduce the chances of exploitation.


Vendor Information

168372

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__ Adobe

Updated: September 20, 2006

Status

__ Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Refer to <http://www.adobe.com/support/security/bulletins/apsb06-11.html>.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

__ Apple Computer, Inc.

Updated: October 03, 2006

Status

__ Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Refer to <http://docs.info.apple.com/article.html?artnum=304460>.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

__ Microsoft Corporation

Updated: November 14, 2006

Status

__ Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Refer to Refer to http://www.microsoft.com/technet/security/bulletin/ms06-069.mspx.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group | Score | Vector
---|---|---
Base | N/A | N/A
Temporal | N/A | N/A
Environmental | | N/A

References

  • <http://secunia.com/advisories/21865/>
  • <http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=tn_16494>
  • <http://www.adobe.com/devnet/security/security_zone/mpsb02-08.html>
  • <http://www.adobe.com/support/security/bulletins/apsb06-11.html>
  • <http://www.microsoft.com/technet/security/bulletin/ms06-069.mspx>

Acknowledgements

This issue was reported in Adobe Security bulletin APSB06-11.

This document was written by Jeff Gennari.

Other Information

CVE IDs:* | CVE-2006-4640
---|---
**Severity Metric:
| 14.29
*Date Public:
| 2006-09-12
Date First Published: | 2006-09-20
Date Last Updated: | 2006-11-14 21:30 UTC
Document Revision: | 22