From: Oracle Corporation
Minor Subject: Security policy changes may not be seen by managed server.
Product(s) Affected: WebLogic Server
Threat level: Medium
Not intentionally exploitable remotely or locally.
Policy changes made on an admin server may not be seen by a managed server.
A problem was identified that could potentially cause a security vulnerability in certain versions of WebLogic Server. A patch is 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.
All sites that use admin servers to set security policy for managed servers are vulnerable.
In very specific circumstances a policy change made on an admin server for a currently unavailable managed server will never reach the managed server. This is caused by a problem in the handling of the admin server's change log.
This would lead to an administrator thinking that the managed server was running with the latest security policies when in fact the managed server might be running with an older set of security policies.
This patch resolves the issue by ensuring that security policies will be correctly sent to the managed server.
The following versions of WebLogic Server and WebLogic Express are affected by this vulnerability
- WebLogic Server 9.1, on all platforms.
II. SUGGESTED ACTION
Oracle strongly recommends the following course of actions.
WebLogic Server and WebLogic Express version 9.1
- Use the Smart Update tool to install the patch for CR282546.
WebLogic Server 9.2 includes the functionality in this patch.
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: