MS-ISAC CYBERSECURITY ADVISORIES

MS-ISAC ADVISORY NUMBER:
2016-011

DATE(S) ISSUED:
01/12/2016

SUBJECT:
Multiple Vulnerabilities in Adobe Acrobat and Adobe Reader Could Allow for Remote Code Execution (APSB16-02)

OVERVIEW:

Multiple vulnerabilities in Adobe Acrobat and Adobe Reader could allow for remote code execution. Adobe Acrobat and Reader allow a user to view, create, manipulate, print and manage files in Portable Document Format (PDF). Successful exploitation could potentially allow an attacker to take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full system rights.

 

THREAT INTELLIGENCE

 

There are currently no reports of these vulnerabilities being exploited in the wild.

 

SYSTEMS AFFECTED:

 

  • Adobe Acrobat DC version prior to 15.010.20056 for Windows and Macintosh

  • Acrobat Reader DC version prior to 15.010.20056 for Windows and Macintosh

  • Acrobat DC version prior to 15.006.30119 for Windows and Macintosh

  • Adobe Acrobat Reader DC version prior to 15.006.30119 for Windows and Macintosh

  • Adobe Acrobat XI version prior to 11.0.14 Windows and Macintosh

  • Adobe Reader XI version prior to 11.0.14 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

 

TECHNICAL SUMMARY:

 

 Adobe Acrobat and Reader are prone to multiple vulnerabilities. These vulnerabilities are as follows:

 

  • Multiple use-after-free vulnerabilities exist that could lead to code execution (CVE-2016-0932, CVE-2016-0934, CVE-2016-0937, CVE-2016-0940, CVE-2016-0941). 

  • A double-free vulnerability exists that could lead to code execution (CVE-2016-0935). 

  • Multiple memory corruption vulnerabilities exist that could lead to code execution (CVE-2016-0931, CVE-2016-0933, CVE-2016-0936, CVE-2016-0938, CVE-2016-0939, CVE-2016-0942, CVE-2016-0944, CVE-2016-0945, CVE-2016-0946). 

  • Bypass restrictions on JavaScript API execution (CVE-2016-0943). 

  • Directory search path used to find resources that could lead to code execution (CVE-2016-0947).

 

Successful exploitation could potentially allow an attacker to take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full system rights.

 

RECOMMENDATIONS:

 

We recommend the following actions be taken:

 

  • Install the updates provided by Adobe immediately after appropriate testing.

  • Do not open email attachments from unknown or untrusted sources.

  • 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 un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

 

REFERENCES:

 

Adobe:

https://helpx.adobe.com/security/products/reader/apsb16-02.html

 

CVE:

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0931

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0932

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0933

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0934

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0935

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0936

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0937

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0938

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0939

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0940

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0941

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0942

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0943

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0944

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0945

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0946

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0947

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1111