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The following cyber advisory was issued by the New York State Office of Information Technology Services and is intended for State government entities. The information may or may not be applicable to the general public and, accordingly, the State does not warrant its use for any specific purposes.

ITS ADVISORY NUMBER:
2012-003

DATE(S) ISSUED:
01/11/2012

SUBJECT:
Multiple Vulnerabilities in Adobe Reader and Acrobat Could Allow Remote Code Execution (APSB12-01)

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe Reader and Acrobat that could allow an attacker to take control of an affected system. Adobe Reader allows users to view Portable Document Format (PDF) files, while Adobe Acrobat offers users additional features such as the ability to create and edit PDF files. 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.

Adobe has received reports that some of these vulnerabilities are being actively exploited in the wild in limited, targeted attacks against Adobe Reader 9.x on Microsoft Windows.

SYSTEMS AFFECTED:

  • Adobe Reader X (10.1.1) and earlier 10.x versions for Windows and Macintosh
  • Adobe Reader 9.4.7 and earlier 9.x versions for Windows, Macintosh and UNIX
  • Adobe Acrobat X (10.1.1) and earlier 10.x versions for Windows and Macintosh
  • Adobe Acrobat 9.4.7 and earlier 9.x versions for Windows and Macintosh

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 Reader and Acrobat are prone to multiple vulnerabilities that could allow remote code execution. Details of these vulnerabilities are as follows:

  • Four memory corruption vulnerabilities which could allow remote code execution.
  • A heap corruption vulnerability which could lead to code remote execution.
  • A U3D memory corruption vulnerability that could lead to remote code execution. This vulnerability was previously reported in OCS Advisory 2011-072.

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. 

Adobe has received reports that some of these vulnerabilities are being actively exploited in the wild in limited, targeted attacks against Adobe Reader 9.x on Microsoft Windows.

RECOMMENDATIONS:
We recommend the following actions be taken:

  • Install the updates provided by Adobe immediately after appropriate testing.
  • Consider installing and running Adobe Reader X in Protected Mode.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Remind users not to open e-mail attachments from unknown or un-trusted sources.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

REFERENCES:
Adobe:
http://www.adobe.com/support/security/bulletins/apsb12-01.html
http://www.adobe.com/support/security/advisories/apsa11-04.html
http://www.adobe.com/support/security/bulletins/apsb11-30.html

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2462
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4369
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4370
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4371
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4372
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4373

SecurityFocus:
http://www.securityfocus.com/bid/50922
http://www.securityfocus.com/bid/51092
http://www.securityfocus.com/bid/51348
http://www.securityfocus.com/bid/51349
http://www.securityfocus.com/bid/51350
http://www.securityfocus.com/bid/51351

OCS:
http:/www.dhses.ny.gov/ocs/advisories/2011/2011-072.cfm