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Oracle JRE Java Platform SE and Java Deployment Toolkit Plugins Code Execution Vulnerabilities

Risk

High

Date Discovered

April 9, 2010

Description

Java Runtime Environment (JRE) is prone to arbitrary code-execution vulnerabilities that affect multiple Java plugins for multiple browsers. Attackers can exploit these issues to execute arbitrary code in the context of the user running the vulnerable applications. The issues affect Java Runtime Environment versions 1.6.0_10 and later (JRE 6 Update 10 and later); other versions may also be vulnerable.

Technologies Affected

  • Sun JRE (Linux Production Release) 1.6.0 10
  • Sun JRE (Linux Production Release) 1.6.0 11
  • Sun JRE (Linux Production Release) 1.6.0 12
  • Sun JRE (Linux Production Release) 1.6.0 13
  • Sun JRE (Linux Production Release) 1.6.0 14
  • Sun JRE (Linux Production Release) 1.6.0 15
  • Sun JRE (Linux Production Release) 1.6.0 18
  • Sun JRE (Linux Production Release) 1.6.0 19
  • Sun JRE (Windows Production Release) 1.6.0 10
  • Sun JRE (Windows Production Release) 1.6.0 11
  • Sun JRE (Windows Production Release) 1.6.0 12
  • Sun JRE (Windows Production Release) 1.6.0 13
  • Sun JRE (Windows Production Release) 1.6.0 14
  • Sun JRE (Windows Production Release) 1.6.0 15
  • Sun JRE (Windows Production Release) 1.6.0 18
  • Sun JRE (Windows Production Release) 1.6.0 19

Recommendations

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

To reduce the impact of latent vulnerabilities, run all applications 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. 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.

Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources.

Implement egress filtering to block malicious outgoing network traffic.

Block access to shared network resources located outside the trusted network.
Oracle has released Java Runtime Environment 1.6.0_20 (JRE 6 Update 20) which seems to address this vulnerability. Though the vendor has not explicitly confirmed this, the DeepSight team has found that existing exploits no longer function after the Java SE 6u20 update has been applied. Furthermore, the affected DLL file and function where this issue resided have been modified which indicates that the vulnerability has been patched.

Credits

Tavis Ormandy, Rubén Santamarta
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.
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