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  3. Adobe Reader 'spell.customDictionaryOpen()' JavaScript Function Remote Code Execution Vulnerability

Adobe Reader 'spell.customDictionaryOpen()' JavaScript Function Remote Code Execution Vulnerability

Risk

High

Date Discovered

April 27, 2009

Description

Adobe Reader is prone to a remote code-execution vulnerability. An attacker can exploit this issue to execute arbitrary code with the privileges of the user running the application or crash the application, denying service to legitimate users. Reader 8.1.4 for Linux is vulnerable; other versions or platforms may also be affected. UPDATE (April 30, 2009): Further information from the reporter states that the issue does not affect Reader 9.1; only 8.1.4 is affected. UPDATE (May 1, 2009): The vendor indicates that fixes will be available by May 12, 2009. Please see the referenced advisory for more information. UPDATE (May 18, 2009): The vendor indicates that fixes for Adobe Reader 7 for Apple Mac OS X will be available by the end of June, 2009. Please see the updated advisory for more information.

Technologies Affected

  • Adobe Acrobat Reader 7.0.0
  • Adobe Acrobat Reader 7.0.1
  • Adobe Acrobat Reader 7.0.2
  • Adobe Acrobat Reader 7.0.3
  • Adobe Acrobat Reader 7.0.4
  • Adobe Acrobat Reader 7.0.5
  • Adobe Acrobat Reader 7.0.6
  • Adobe Acrobat Reader 7.0.7
  • Adobe Acrobat Reader 7.0.8
  • Adobe Acrobat Reader 7.0.9
  • Adobe Acrobat Reader 7.1
  • Adobe Acrobat Reader 7.1.1
  • Adobe Acrobat Reader 8.0
  • Adobe Acrobat Reader 8.1
  • Adobe Acrobat Reader 8.1.1
  • Adobe Acrobat Reader 8.1.2
  • Adobe Acrobat Reader 8.1.2 Security Update 1
  • Adobe Acrobat Reader 8.1.3
  • Adobe Acrobat Reader 8.1.4
  • Adobe Acrobat Reader 8.1.5
  • Adobe Acrobat Reader 9.1
  • Avaya Interactive Response 3.0
  • Avaya Interactive Response 4.0
  • Gentoo Linux
  • Nortel Networks Self-Service MPS 1000
  • Nortel Networks Self-Service MPS 500
  • Nortel Networks Self-Service Peri Application
  • Nortel Networks Self-Service Speech Server
  • RedHat Desktop Extras 3
  • RedHat Desktop Extras 4
  • RedHat Enterprise Linux AS Extras 3
  • RedHat Enterprise Linux AS Extras 4
  • RedHat Enterprise Linux Desktop Supplementary 5 client
  • RedHat Enterprise Linux ES Extras 3
  • RedHat Enterprise Linux ES Extras 4
  • RedHat Enterprise Linux Extras 3
  • RedHat Enterprise Linux Extras 4
  • RedHat Enterprise Linux Supplementary 5 server
  • RedHat Enterprise Linux WS Extras 3
  • RedHat Enterprise Linux WS Extras 4
  • S.u.S.E. SLE 10
  • S.u.S.E. SLE 11
  • S.u.S.E. SLES 11
  • S.u.S.E. SLES 11 DEBUGINFO
  • S.u.S.E. SUSE Linux Enterprise Desktop 10 SP2
  • S.u.S.E. openSUSE 10.3
  • S.u.S.E. openSUSE 11.0
  • S.u.S.E. openSUSE 11.1
  • Sun Solaris 10.0

Recommendations

Run all software as a nonprivileged user with minimal access rights.

To reduce the impact of latent vulnerabilities, run the application with the minimal amount of privileges required for functionality.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.

Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity including unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Do not accept or execute files from untrusted or unknown sources.

To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Do not follow links provided by unknown or untrusted sources.

To reduce the likelihood of attacks, never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.

Implement multiple redundant layers of security.

Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker's ability to exploit this vulnerability to execute arbitrary code.

Review and adjust according to policy any default configuration settings.

Disabling JavaScript in Acrobat reader may also help protect users from exploits that rely on JavaScript. For details, see: https://forums.symantec.com/t5/blogs/blogarticlepage/blog-id/vulnerabilities_exploits/article-id/185#M185
The vendor has released an advisory and updates. Please see the references for details.

Credits

Arr1val
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

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