Note: This is an archival copy of Security Sun Alert 201744 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1001284.1.
Java 2 Platform, Standard Edition
Date of Resolved Release
A security vulnerability in Java Web Start may allow an untrusted application to elevate its privileges. For example, an application may grant itself permissions to read and write local files that are accessible to the user running the Java Web Start application.
Sun acknowledges, with thanks, the Fujitsu security team, for bringing this issue to our attention.
This issue can occur in the following releases:
To determine the version of Java installed on a system, the following command can be used:
% java -fullversion java full version "1.5.0_02-b09"
There are no reliable symptoms that would show the described issue has been exploited.
To workaround this issue, users should avoid using Java Web Start with untrusted applications, and may also wish to temporarily disable the use of Java Web Start.
To disable Java Web Start applications from being automatically launched from a web browser, the following steps can be performed:
For Internet Explorer:
Note 1: On Microsoft Windows, applications may also be launched from the desktop icon or Start Menu if a shortcut was previously created for an application. Unknown applications should not be launched through the desktop icon or the Start Menu. Shortcuts can be removed by using the Java Web Start Application Manager through the "Application/Remove Shortcut" menu item.
For more information, see:
Note 2: It is also possible to launch applications through the command line in Windows, Solaris, and Linux. Unknown applications should not be launched through the command line. Sites may consider renaming the Java Web Start launcher ("javaws.exe" for Windows and "javaws" for Solaris and Linux) to prevent Java Web Start from launching.
The launcher can be found at:
Solaris (if installed using pkg):
Linux (if installed using rpm):
This issue is addressed in the following releases:
J2SE 5.0 is available for download at the following links:
J2SE 5.0 Update 11 for Solaris is available in the following patches:
J2SE 1.4.2 is available for download at the following link:
Note: It is recommended that affected versions be removed from your system. For more information, please see the installation notes on the respective java.sun.com download page and the following for the Windows platform:
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