Security Advisories and Notifications


Security Advisory: (BEA04-57.00)

From: Oracle Corporation

Minor Subject: Upgrade and patches are available to prevent EJB objects being deleted without the required permission.

Product(s) Affected: WebLogic Server and WebLogic Express

Threat level: Low
This vulnerability requires access to an EJB in order to exploit the vulnerability

Severity: High
Some services may become inaccessible.

A problem was identified that could potentially cause a security vulnerability in certain versions of WebLogic Server and WebLogic Express. Patches are available to correct this problem (see Section II). BEA System treats potential security problems with the highest degree of urgency and does everything possible to ensure the security of all customer assets. 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.

I. Advisory

This vulnerability can occur when an application calls the remove() method of a stateful EJB with a remote view. The remote object of the EJB is unexported from remote view by other EJB objects whether or not the caller has the proper permission to remove it. If the user does not have the appropriate permission to remove the EJB, the container throws the security exception after the bean has been unexported. But, since unexporting a remote EJB object makes the remote view unavailable, the exception should haven been thrown before the unexport occurred.

This vulnerability affects sites with stateful EJBs that have code that executes the remove() method when the caller may or may not have permission to execute the method (generally, a security exception is expected in this circumstance).

The following versions of WebLogic Server and WebLogic Express are affected by this vulnerability

  • WebLogic Server and WebLogic Express version 8.1 through Service Pack 2, on all platforms
  • WebLogic Server and WebLogic Express version 7.0 through Service Pack 4, on all platforms
  • WebLogic Server and WebLogic Express version 6.1 through Service Pack 6, on all platforms

II. SUGGESTED ACTION

Oracle strongly recommends the following course of actions:

WebLogic Server and WebLogic Express version 8.1

  1. Upgrade to WebLogic Server and WebLogic Express version 8.1 Service Pack 2.
  2. Download and apply the patch #7823673 from OracleMetaLink as per the instructions below:
    • Select the Patches and Updates tab after logging in to OracleMetaLink.
    • Click Simple Search.
    • In the Search By field, select Patch Number from the list.
    • Enter the patch number. The patch number may be different for different product releases and platforms.
    • Select the platform (or choose generic as applicable)
    • Click Go.
    • Click Download to download the patch.

WebLogic Server version 8.1 Service Pack 3 will include the functionality in this patch.


WebLogic Server and WebLogic Express version 7.0

Upgrade to WebLogic Server and WebLogic Express version 7.0 Service Pack 5.


WebLogic Server and WebLogic Express version 6.1

  1. Upgrade to WebLogic Server and WebLogic Express version 6.1 Service Pack 6
  2. Download and apply the patch #7823665 from OracleMetaLink as per the instructions below:
    • Select the Patches and Updates tab after logging in to OracleMetaLink.
    • Click Simple Search.
    • In the Search By field, select Patch Number from the list.
    • Enter the patch number. The patch number may be different for different product releases and platforms.
    • Select the platform (or choose generic as applicable)
    • Click Go.
    • Click Download to download the patch.

WebLogic Server version 6.1 Service Pack 7 will include the functionality in this patch.


SECURITY COMMUNICATIONS

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: http://www.oracle.com/technology/software/products/ias/bea_main.html

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: http://www.oracle.com/technology/deploy/security/alerts.htm.

Thank you,
Oracle Corporation