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AUSCERT External Security Bulletin Redistribution
ESB-2007.0544 -- [Win][UNIX/Linux]
Vulnerability in Java Runtime Environment May Allow an Untrusted Applet to
Circumvent Network Access Restrictions
8 August 2007
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AusCERT Security Bulletin Summary
---------------------------------
Product: Java 2 Platform, Standard Edition
JDK and JRE 6 Update 1 and prior
JDK and JRE 5.0 Update 11 and prior
SDK and JRE 1.4.2_14 and prior
Publisher: Sun Microsystems
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact: Inappropriate Access
Access: Remote/Unauthenticated
CVE Names: CVE-2007-3922
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102995-1
Revision History: August 8 2007: Added CVE Name
July 20 2007: Initial Release
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Sun(sm) Alert Notification
* Sun Alert ID: 102995
* Synopsis: A Security Vulnerability in the Java Runtime Environment
May Allow an Untrusted Applet to Circumvent Network Access
Restrictions
* Category: Security
* Product: Java 2 Platform, Standard Edition
* BugIDs: 6509141
* Avoidance: Patch, Upgrade
* State: Resolved
* Date Released: 18-Jul-2007
* Date Closed: 18-Jul-2007
* Date Modified:
1. Impact
A security vulnerability in the Java Runtime Environment Applet Class
Loader may allow an untrusted applet that is loaded from a remote
system to circumvent network access restrictions and establish socket
connections to certain services running on the local host, as if it
were loaded from the system that the applet is running on. This may
allow the untrusted remote applet the ability to exploit any security
vulnerabilities existing in the services it has connected to.
Sun acknowledges with thanks, John Heasman of NGSSoftware, for
bringing this issue to our attention.
2. Contributing Factors
This issue can occur in the following releases (for Windows, Solaris,
and Linux):
* JDK and JRE 6 Update 1 and earlier
* JDK and JRE 5.0 Update 11 and earlier
* SDK and JRE 1.4.2_14 and earlier
To determine the default version of the JRE on a system for Solaris
and Linux, the following command can be run:
% java -version
Note: The above command only determines the default version. Other
versions may also be installed on the system.
To determine the default version of the JRE on a system for Windows:
1. Click "Start"
2. Select "Run"
3. Type "cmd" (starts a command-line)
4. At the prompt, type "java -version"
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 indicate the described issue
has been exploited to elevate privileges.
4. Relief/Workaround
There is no workaround. Please see the "Resolution" section below.
5. Resolution
This issue is addressed in the following releases (for Windows,
Solaris, and Linux):
* JDK and JRE 6 Update 2 or later
* JDK and JRE 5.0 Update 12 or later
* SDK and JRE 1.4.2_15 or later
Java SE 6 Update 2 is available for download at:
* http://java.sun.com/javase/downloads/index.jsp
* http://java.com
Java SE 6 Update 2 for Solaris is available in the following patches:
* Java SE 6: update 2 (as delivered in patch 125136-02 or later)
* Java SE 6: update 2 (as delivered in patch 125137-02 or
later (64bit))
* Java SE 6_x86: update 2 (as delivered in patch 125138-02 or
later)
* Java SE 6_x86: update 2 (as delivered in patch 125139-02 or
later (64bit))
Java SE 5.0 Update 12 is available for download at:
* http://java.sun.com/javase/downloads/index_jdk5.jsp
Java SE 5.0 Update 12 for Solaris is available in the following
patches:
* Java SE 5.0: update 12 (as delivered in patch 118666-12 or
later)
* Java SE 5.0: update 12 (as delivered in patch 118667-12 or
later (64bit))
* Java SE 5.0_x86: update 12 (as delivered in patch 118668-12 or
later)
* Java SE 5.0_x86: update 12 (as delivered in patch 118669-12 or
later (64bit))
SDK and JRE 1.4.2_15 is available for download at:
http://java.sun.com/j2se/1.4.2/download.html
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://java.com/en/download/help/uninstall_java.xml
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 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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