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AUSCERT External Security Bulletin Redistribution
ESB-2006.0106 -- [Win][UNIX/Linux]
Security Vulnerabilities in the Java Runtime Environment may
Allow an Untrusted Applet to Elevate its Privileges
9 February 2006
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AusCERT Security Bulletin Summary
---------------------------------
Product: Sun Java Runtime Environment (JRE) 5.0 update 5 and prior
Sun Java Development Kit (JDK) 5.0 update 5 and prior
Publisher: Sun Microsystems
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
Ref: AU-2006.0002
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102171-1
Comment: When a user visits a webpage hosting a malicious Java applet, the
remote attacker may execute arbitrary code on the user's computer.
Previous similar vulnerabilities have been actively exploited,
as reported in AU-2006.0002.
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Sun(sm) Alert Notification
* Sun Alert ID: 102171
* Synopsis: Security Vulnerabilities in the Java Runtime Environment
may Allow an Untrusted Applet to Elevate its Privileges
* Category: Security
* Product: Java 2 Platform, Standard Edition
* BugIDs: 6277246, 6316316, 6316314, 6316322, 6343309, 6343350,
6343342
* Avoidance: Upgrade
* State: Resolved
* Date Released: 07-Feb-2006
* Date Closed: 07-Feb-2006
* Date Modified:
1. Impact
Seven (7) vulnerabilities with the use of "reflection" APIs in the
Java Runtime Environment may independently allow an untrusted applet
to elevate its privileges. For example an applet may grant itself
permissions to read and write local files or execute local
applications that are accessible to the user running the untrusted
applet.
Sun acknowledges, with thanks, Adam Gowdiak, for bringing five of the
seven issues to our attention.
2. Contributing Factors
The first issue can occur in the following releases (for Windows,
Solaris and Linux):
* JDK and JRE 5.0 Update 3 and earlier
* SDK and JRE 1.4.2_08 and earlier
* SDK and JRE 1.3.1_16 and earlier
The second and third issues can occur in the following releases (for
Windows, Solaris, and Linux):
* JDK and JRE 5.0 Update 4 and earlier
* SDK and JRE 1.4.2_09 and earlier
Note: SDK and JRE 1.3.x are not affected.
The fourth issue can occur in the following releases (for Windows,
Solaris, and Linux):
* JDK and JRE 5.0 Update 4 and earlier
Note: SDK and JRE 1.4.x and 1.3.x are not affected.
The fifth, sixth, and seventh issues can occur in the following
releases (for Windows, Solaris, and Linux):
* JDK and JRE 5.0 Update 5 and earlier
Note: SDK and JRE 1.4.x and 1.3.x are not affected.
To determine the default version of the JRE on a system:
For Windows:
1. Click "Start"
2. Select "Run"
3. Type "cmd"
4. At the prompt, type "java -fullversion"
For Solaris and Linux:
% java -fullversion
java full version "1.5.0_02-b09"
Note: The above command only determines the default version. Other
versions may also be installed on the system.
3. Symptoms
There are no reliable symptoms that would show the described issues
have been exploited.
4. Relief/Workaround
There is no workaround. Please see the "Resolution" section below.
5. Resolution
The first issue is addressed in the following releases:
* JDK and JRE 5.0 Update 4 and later
* SDK and JRE 1.4.2_09 and later
* SDK and JRE 1.3.1_17 and later
The second and third issues are addressed in the following releases:
* JDK and JRE 5.0 Update 5 and later
* SDK and JRE 1.4.2_10 and later
The fourth issue is addressed in the following releases:
* JDK and JRE 5.0 Update 5 and later
The fifth, sixth, and seventh issues are addressed in the following
releases:
* JDK and JRE 5.0 Update 6 and later
J2SE 5.0 is available for download at:
* http://java.sun.com/j2se/1.5.0/download.jsp
* http://java.com
J2SE 1.4.2 is available for download at:
* http://java.sun.com/j2se/1.4.2/download.html
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 pages.
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 2000-2005 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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