Subject: Security Advisory (BEA07-173.00)
From: Oracle Corporation
Minor Subject: An Application started through Java Web Start may be able to elevate its privileges
Product(s) Affected: Java Web Start, early releases of BEA JRockit
Threat level: Medium
A malicious application started with Java Web Start may be able to elevate its privileges
An non-trusted application may be able to grant itself privileges to read and write local files accessible to the user using Java Web Start
A problem was identified that could potentially cause a security vulnerability in certain versions of JRockit. Upgrades are available to correct this problem (see Section II). Oracle treats potential security problems with a high degree of urgency and endeavors to take appropriate steps to help ensure the security of our customers' systems. As a result, Oracle strongly suggests the following actions:
I. Read the following advisory.
II. Apply the suggested action.
III. If you know of any additional users interested in future security advisories, please forward them the registration instructions included in this advisory.
Java Web Start enables standalone Java applications to be launched from a browser. Sun Microsystems reported vulnerability in Java Web Start that allows a non-trusted application to elevate its privileges. For example, the non-trusted application could read and write local files accessible to the user running the Java Web Start Application. For more information, please see the following advisory from Sun Microsystems:
Early releases of BEA JRockit (prior to R26.0) may be affected by this vulnerability and patches are available to correct this problem. The latest releases of BEA JRockit do not ship with Java Web Start and are not affected by this vulnerability.
Impact and CVSS Ratings:
The issues described above are rated equally:
CVSS Severity Score: 5.6 (Medium)
Attack Range (AV): Remote (victim voluntarily launches non-trusted remote application)
Attack Complexity (AC): High
Authentication Level (Au): Not Required
Impact Type: Unauthorized access. Partial confidentiality, integrity and availability violation
Vulnerability Type: Elevation of Privilege
CVSS Base Score Vector: (AV:R/AC:H/Au:NR/C:P/I:P/A:P/B:N)
The following versions of BEA JRockit are affected by this vulnerability
- Releases prior to BEA JRockit R26.0.0 1.4.2_07 and BEA JRockit R26.0.0 1.5.0_04
This vulnerability does not affect JRockit 7.0 SP6 RP1 JDK 1.3.1_20.
Applications using Java Web Start functionality (shipped with BEA JRockit releases prior to R26.0) from
- Java Web Start in JDK(™) and JRE 5.0 Update 10 and earlier
- Java Web Start in SDK and JRE 1.4.2_13 and earlier
- Java Web Start 1.0.1_02 and earlier
JRockit version R26.0.0 (or later) is not affected by this vulnerability. This release do not ship with Java Web Start since it is primarily a server oriented JVM.
II. SUGGESTED ACTION
Oracle strongly recommends the following course of actions.
If you are using a JRockit release prior to R26.0, but are not actively using Java Web Start functionality, please upgrade to R26.1 or the latest BEA JRockit release. These versions can be found at:
If you are using a JRockit release prior to R26.0, but are actively using Java Web Start functionality, please contact BEA Technical Support at firstname.lastname@example.org for the appropriate patch.
You can verify your version of BEA JRockit by running �java -version".
Oracle strongly suggests that customers apply the remedies recommended in all our security advisories. Oracle also urges customers to apply every Service/Maintenance Pack as they are released. Service/Maintenance Packs include a roll-up of all bug fixes for each version of the product, as well as each of the prior Service/Maintenance Packs. Service/Maintenance Packs and information about them can be found at:
Note: Information about securing WebLogic Server and WebLogic Express can be found at http://edocs.bea.com/wls/docs103/security.html. Specific lockdown information is provided at http://e-docs.bea.com/wls/docs103/lockdown/index.html. We strongly encourage you to review this documentation to ensure your server deployment is securely configured.
As a policy, if there are any security-related issues with any Oracle product, Oracle will distribute an advisory and instructions with the appropriate course of action. Because the security of your site, data, and code is our highest priority, we are committed to communicating all security-related issues clearly and openly.
All previous advisories can be viewed at: http://www.oracle.com/technology/deploy/security/wls-security.
Additional users who wish to register for product advisory distribution should follow the registration directions at: http://www.oracle.com/technology/deploy/security/alerts.htm.
Security issues can be reported to Oracle by following the directions at: