Adobe Flash Player for Chrome Sandbox Bypass Vulnerabilities

Notification Type: IBM Security Protection Advisory
Notification Date: April 10, 2012
Notification Version: 1.1
   
Name: Adobe Flash Player for Chrome Sandbox Bypass Vulnerabilities
Public disclosure/
In the wild date:
April 05, 2012
Aliases: APSB12-07
CVE: CVE-2012-0724, CVE-2012-0725
Description: The sandbox feature of Adobe Flash Player for Chrome has two vulnerabilities which could result in privilege escalation.
Discoverer:  Mark Yason and Paul Sabanal of IBM X-Force

 

ISS Coverage

Product Content Version
Proventia Network IDS
Proventia Network IPS
Proventia Network MFS
Proventia Server (Linux)
RealSecure Network
RealSecure Server Sensor
Virtual Server Protection for VMware
N/A
Proventia Desktop
Proventia Server IPS (Windows)
N/A
Propagation Techniques ISS Protection Available
Remote exploit See Advisory note below.


Detailed Description

Business Impact:

In order to leverage these vulnerabilities, an attacker would first need to exploit a separate Adobe Flash Player vulnerability that allows arbitrary code execution in the Flash sandbox. Exploitation of these vulnerabilities could result in privilege escalation, allowing code to be executed outside the Flash sandbox with the privileges of the currently logged on user.

ADVISORY NOTE: Due to the nature of this vulnerability, IBM X-Force is not issuing any specific signature coverage on this advisory. We recommend applying the patch released by Adobe for this issue.

*CVSS Base Score: 9.3
  Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Complete
Integrity Impact: Complete
Availability Impact: Complete
Adjusted Temporal Score: 6.9
  Exploitability: Unproven
Remediation Level: Official-Fix
Report Confidence: Confirmed
Affected Products:

Adobe Flash Player 11.1.102.63 for Chrome and earlier version are affected.

Technical Description:

The vulnerabilities exist because the Flash broker process fully trusts and dereferences certain pointers that it receives from the Flash sandbox process. Code running in the Flash sandbox can leverage these vulnerabilities to execute arbitrary code in the context of the higher privileged Flash broker process.

Remediation:

 See References for details.

References

XFDB: http://xforce.iss.net/xforce/xfdb/74638
http://xforce.iss.net/xforce/xfdb/74639
Adobe: http://www.adobe.com/support/security/bulletins/apsb12-07.html

Revision History

1.0 Initial publication.

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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