Bug Id
6801071, 6801497

Date of Resolved Release
04-Aug-2009

Security vulnerabilities with the proxy mechanism implementation in the Java Runtime Environment (JRE) may lead to escalation of privileges:

1. Impact

CR 6801071:
A security vulnerability in the Java Runtime Environment SOCKS proxy implementation may allow an untrusted applet or Java Web Start application to determine the username of the user running the applet or application.

A second vulnerability in the Java Runtime Environment proxy mechanism implementation may allow an untrusted applet or Java Web Start application to obtain browser cookies and leverage those cookies to hijack sessions.

CR 6801497:
A security vulnerability in the Java Runtime Environment proxy mechanism implementation may allow an untrusted applet or Java Web Start application to make non-authorized socket or URL connections to hosts other than the origin host.

Sun acknowledges, with thanks, Gregory Fleischer for bringing the first two issues to our attention.

2. Contributing Factors

These issues can occur in the following Java SE and Java SE for Business releases for Windows, Solaris, and Linux:

• JDK and JRE 6 Update 14 and earlier
• JDK and JRE 5.0 Update 19 and earlier
  

Note: SDK and JRE 1.4.2 and 1.3.1 are not affected by this issue.

To determine the default version of the JRE that Internet Explorer uses, visit the URL:

• http://java.com/en/download/installed.jsp?detect=jre&try=1

To determine the default version of the JRE that Mozilla or Firefox browsers use, visit the URL "about:plugins". The browser will display a page called "Installed plug-ins" which lists the version of the Java Plug-in:

    Java(TM) Platform SE 6 U13

In this example, the version of the JRE that the browser uses is 6 Update 13.

3. Symptoms

There are no reliable symptoms that would indicate the described issues have been exploited.

4. Workaround

There are no workarounds for these issues.  Please see the Resolution section below.

5. Resolution

These issues are addressed in the following Java SE and Java SE for Business releases for Windows, Solaris, and Linux:

• JDK and JRE 6 Update 15 or later
• JDK and JRE 5.0 Update 20 or later
  

Java SE releases are available at:

JDK and JRE 6 Update 15:

• http://java.sun.com/javase/downloads/index.jsp

JRE 6 Update 15:

• http://java.com/
• Through the Java Update tool for Microsoft Windows users

JDK 6 Update 15 for Solaris is available in the following patches:

• Java SE 6: update 15 (as delivered in patch 125136-16)
• Java SE 6: update 15 (as delivered in patch 125137-16 (64bit))
• Java SE 6_x86: update 15 (as delivered in patch 125138-16)
• Java SE 6_x86: update 15 (as delivered in patch 125139-16 (64bit))
  

JDK and JRE 5.0 Update 20:

• http://java.sun.com/javase/downloads/index_jdk5.jsp

JDK 5.0 Update 20 for Solaris is available in the following patches:

• J2SE 5.0: update 20 (as delivered in patch 118666-21)
• J2SE 5.0: update 20 (as delivered in patch 118667-21 (64bit))
• J2SE 5.0_x86: update 20 (as delivered in patch 118668-21)
• J2SE 5.0_x86: update 20 (as delivered in patch 118669-21 (64bit))
  

Java SE for Business releases are available at:

• http://www.sun.com/software/javaseforbusiness/getit_download.jsp

Note:  When installing a new version of the product from a source other than a Solaris patch, it is recommended that the old affected versions be removed from your system. To remove old affected versions on the Windows platform, please see:

• http://www.java.com/en/download/help/5000010800.xml

For more information on Security Sun Alerts, see 1009886.1.

This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements.

Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.

Product
Java Platform, Standard Edition 6 (Java SE 6)

References

125136-16
125137-16
125138-16
125139-16
118668-21
118669-21
118666-21
118667-21





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