CIS CYBER SECURITY ADVISORIES

MS-ISAC CYBER SECURITY ADVISORY NUMBER:
2012-018

DATE(S) ISSUED:
03/28/2012

SUBJECT:
Multiple Vulnerabilities in Adobe Flash Player Could Allow For Remote Code Execution (APSB12-07)

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe Flash Player that could allowattackers to take complete control of affected systems. 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 thelogged 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.

SYSTEMS AFFECTED:

  • Adobe Flash Player 11.1.102.63 and earlier for Windows, Macintosh, Linux, and Solaris
  • Adobe Flash Player 11.1.111.7 for Android versions 3.x and 2.x
  • Adobe AIR 3.1.0.4880 and earlier versions for Windows, Macintosh, and Android

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 is prone to two unspecified memory corruption vulnerabilities which could allow for remote code execution.

  • An unspecified memory corruption vulnerability exists due to the way the application handles URL security domain checking. (CVE-2012-0772)
  • An unspecified memory corruption vulnerability exists in the application's NetStream class. (CVE-2012-0773)

Successful exploitation of any of these vulnerabilities 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 result in denial-of-service conditions.

RECOMMENDATIONS:
We recommend the following actions be taken:

  • Install the update from Adobe immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Consider installing and running Adobe Reader X in Protected Mode.
  • Do not open email attachments from unknown or untrusted sources.
  • Consider implementing file extension whitelists for allowed e-mail attachments.

REFERENCES:

Adobe:
http://www.adobe.com/support/security/bulletins/apsb12-07.html

CVE:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0772
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0773

Security Focus
http://www.securityfocus.com/bid/52748