CIS CYBER SECURITY ADVISORIES

MS-ISAC CYBER SECURITY ADVISORY NUMBER:
2013-079

DATE(S) ISSUED:
09/10/2013

SUBJECT:
Multiple Vulnerabilities in Adobe Reader and Acrobat Could Allow For Remote Code Execution (APSB13-22)

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe Reader and Adobe Acrobat that could allow an attacker to take control of the 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 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.

SYSTEMS AFFECTED:

  • Adobe Reader XI (11.0.03) and earlier 11.x versions for Windows and Macintosh
  • Adobe Reader X (10.1.7) and earlier 10.x versions for Windows and Macintosh
  • Adobe Acrobat XI (11.0.03) and earlier 11.x versions for Windows and Macintosh
  • Adobe Acrobat X (10.1.7) and earlier 10.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 for remote code execution. Although specific details are not available, description of these vulnerabilities are as follows:

  • Stack overflow vulnerability (CVE-2013-3351)
  • Memory corruption vulnerabilities that could lead to code execution (CVE-2013-3352, CVE-2013-3354, CVE-2013-3355)
  • Buffer overflow vulnerabilities that could lead to code execution (CVE-2013-3353, CVE-2013-3356)
  • Integer overflow vulnerabilities that could lead to code execution (CVE-2013-3357, CVE-2013-3358)

RECOMMENDATIONS:
We recommend the following actions be taken:

  • Install the updates provided by Adobe immediately after appropriate testing.
  • Users of Adobe Reader XI (11.0.03) for Windows and Macintosh should update to Adobe Reader XI (11.0.04).
  • For users of Adobe Reader X (10.1.7) and earlier versions for Windows and Macintosh, who cannot update to Adobe Reader XI (11.0.04), Adobe has made available the update Adobe Reader X (10.1.8).
  • Users of Adobe Acrobat XI (11.0.03) for Windows and Macintosh should update to Adobe Acrobat XI (11.0.04).
  • For users of Adobe Acrobat X (10.1.7) and earlier versions for Windows and Macintosh, who cannot update to Adobe Acrobat XI (11.0.04), Adobe has made available the update Adobe Acrobat X (10.1.8).
  • 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.

REFERENCES:

Adobe:
http://www.adobe.com/support/security/bulletins/apsb13-22.html

CVE:

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3351
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3352
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3353
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3354
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3355
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3356
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3357
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3358