CIS CYBER SECURITY ADVISORIES

MS-ISAC CYBER SECURITY ADVISORY NUMBER:
2013-011

DATE(S) ISSUED:
02/07/2013 02/12/2013 - Updated

SUBJECT:
Multiple Vulnerabilities in Adobe Flash Player Could Allow For Remote Code Execution (APSB13-04)

ORIGINAL OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe Flash Player and AIR that could allow an attacker to take control of the affected system. Adobe Flash Player is a widely distributed multimedia and application player used to enhance the user experience when visiting web pages or reading email messages.

Successful exploitation could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Failed exploit attempts will likely cause denial-of-service conditions.

It should be noted that these vulnerabilities are currently being exploited via various phishing campaigns.


SYSTEM AFFECTED:

  • Adobe Flash Player 11.5.502.146 and earlier versions for Windows and Macintosh
  • Adobe Flash Player 11.2.202.261 and earlier versions for Linux
  • Adobe Flash Player 11.1.115.36 and earlier versions for Android 4.x
  • Adobe Flash Player 11.1.111.31 and earlier versions for Android 3.x and 2.x

UPDATED SYSTEM AFFECTED:

  • Adobe AIR 3.5.0.1060 and earlier versions
  • Adobe AIR 3.5.0.1060 SDK and earlier versions

RISK:

Government:

  • Large and medium government entities: High
  • Small government entities: High

Businesses:

  • Large and medium business entities: High
  • Small business entities: High

Home users: High

DESCRIPTION:

Adobe Flash Player and AIR is prone to multiple vulnerabilities that could allow for remote code execution. Adobe has released security updates for Adobe Flash Player 11.5.502.146 and earlier versions for Windows and Macintosh, Adobe Flash Player 11.2.202.261 and earlier versions for Linux, Adobe Flash Player 11.1.115.36 and earlier versions for Android 4.x, and Adobe Flash Player 11.1.111.31 and earlier versions for Android 3.x and 2.x.

Successful exploitation could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Failed exploit attempts will likely cause denial-of-service conditions.

 

CVE-2013-0633 - This vulnerability is being exploited in the wild in targeted attacks designed to trick the users into opening a Microsoft Word document delivered as an email attachment which contains malicious Flash (SWF) content. The exploit targets the ActiveX version of Flash Player on Windows.

CVE-2013-0634 - This vulnerability is being exploited in the wild in attacks delivered via malicious Flash (SWF) content hosted on websites that target Flash Player in Firefox or Safari on the Macintosh platform, as well as attacks designed to trick Windows users into opening a Microsoft Word document delivered as an email attachment which contains malicious Flash (SWF) content.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Install the updates provided by Adobe immediately after appropriate testing.
  • Users of Adobe Flash Player 11.5.502.146 and earlier versions for Windows and Macintosh should update to Adobe Flash Player 11.5.502.149.
  • Users of Adobe Flash Player 11.2.202.261 and earlier versions for Linux should update to Adobe Flash Player 11.2.202.262.
  • Users of Adobe Flash Player 11.1.115.36 and earlier versions on Android 4.x devices should update to Adobe Flash Player 11.1.115.37.
  • Users of Adobe Flash Player 11.1.111.31 and earlier versions for Android 3.x and earlier versions should update to Flash Player 11.1.111.32.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit untrusted websites or follow links provided by unknown or untrusted sources.
  • Do not open email attachments from unknown or untrusted sources.

UPDATED RECOMMENDATIONS:

  • Users of Adobe AIR 3.5.0.1060 and earlier versions should update to Adobe AIR 3.6.0.597.
  • Users of the Adobe AIR 3.5.0.1060 SDK (including AIR for iOS) and earlier should update to the new Adobe AIR 3.6.0.599 SDK Compiler.- Users of Adobe Flash Player 11.2.202.261 and earlier versions for Linux should update to Adobe Flash Player 11.2.202.262.

REFERENCES:

Adobe:

http://www.adobe.com/support/security/bulletins/apsb13-04.html

CVE:

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0633
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0634

Security Focus:

http://www.securityfocus.com/bid/57787

http://www.securityfocus.com/bid/57788