Note: This is an archival copy of Security Sun Alert 244986 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1019736.1.
Sun Java Standard Edition (Java SE)
Date of Resolved Release
The Java Runtime Environment Creates Temporary Files That Have "Guessable" File Names
The Java Runtime Environment creates temporary files with insufficiently random names. This may be leveraged to write JAR files which may then be loaded as untrusted applets and Java Web Start applications to access and provide services from localhost and hence steal cookies.
2. Contributing Factors
This issue can occur in the following Java SE and Java SE for Business releases for Solaris, Windows and Linux:
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 as in the following example:
Java(TM) Plug-in 1.5.0_11-b03
(Indicating that the JRE version the browser uses is 1.5.0_11).
There are no predictable symptoms that would indicate the described issue has been exploited.
There is no workaround for this issue. Please see the Resolution section below.
This issue is addressed in the following Java SE and Java SE for Business releases for Solaris, Windows, and Linux:
JDK 6 Update 11:
JRE 6 Update 11:
and through the Java Update tool for Microsoft Windows users.
JDK 6 Update 11 for Solaris is available in the following patches:
JDK 5.0 Update 17 for Solaris is available in the following patches:
Java SE for Business releases are available at:
Java SE releases SDK and JRE 1.4.2 have completed the Sun End of Service Life (EOSL) process. Sun recommends that users upgrade to the latest Java SE release. Customers interested in continuing to receive critical fixes on SDK and JRE 1.4.2 are encouraged to migrate to Java SE for Business.
SDK and JRE 1.3.1 have completed the Sun End of Service Life (EOSL) process and is only supported for customers with Solaris 8 and Vintage Support Offering support contracts (see http://java.sun.com/j2se/1.3/download.html). Sun strongly recommends that users upgrade to the latest Java SE release.
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 the system. To remove old affected versions on the Windows platform, please see:
For more information on Security Sun Alerts, see 1009886.1.
Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.
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