Security Advisories and Notifications


Security Advisory: (BEA03-26.01)

From: Oracle Corporation

Subject: SECURITY ADVISORY (BEA03-26.01)

Minor Subject: Patch (Remedy, Workaround…) available to prevent session sharing

Product(s) Affected: WebLogic Server and Express

Threat Level: Low

Severity: High

This security advisory (BEA03-26.01) contains updated information in section II. Specifically, a patch is available for WebLogic Server 7.0 Service Pack 2. This vulnerability was not remedied in WebLogic Server 7.0 Service Pack 2, as previously reported. Please disregard SECURITY ADVISORY BEA03-26.00 as this advisory BEA03-26.01 supersedes it.

Recently a Oracle customer identified a problem that could potentially cause a security vulnerability in certain versions of WebLogic Server and Express. Patches are available to correct this problem (see section II below). BEA treats such possibilities with the highest degree of urgency and does everything possible to ensure the security of all customer assets. As a result, we strongly suggest the following action:

     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 below.


I. Advisory

A potential security vulnerability was discovered that could allow session data to be shared between two users when the application uses in-memory session replication or replicated stateful session beans. The defect occurs because of a race condition in a clustered environment that results in two users being returned the same internal buffer. This is a rare occurrence that cannot be intentionally exploited.

The following versions of WebLogic Server and Express are affected by this vulnerability
  • WebLogic Server and Express, 5.1, 6.0, 6.1, 7.0 and 7.0.0.1, on all platforms.

II. SUGGESTED ACTION

Oracle strongly recommends the following course of actions:
  • WebLogic Server and Express 5.1
    • Upgrade to Service Pack 13 and download and apply the patch #7823032 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.
    • When Service Pack 14 becomes available, you may use that Service Pack instead of Service Pack 13 and this patch.

  • WebLogic Server and Express 6.0
    • Upgrade to Service Pack 2 Rolling Patch 3 and download and apply the patch #7823040 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 and Express 6.1
    • Upgrade to Service Pack 4 and download and apply the patch #7823052 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.
    • When Service Pack 5 becomes available, you may use that Service Pack instead of Service Pack 4 and this patch.

  • WebLogic Server and Express 7.0 and 7.0.0.1
    • Upgrade to Service Pack 2 and download and apply the patch #7823078 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.
    • When Service Pack 3 becomes available, you may use that Service Pack instead of Service Pack 2 and 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