Security Advisories and Notifications


Security Advisory: (BEA03-35.00)

From: Oracle Corporation

Minor Subject: Patch available to safeguard current user identity

Product(s) Affected: WebLogic Server and Express

Threat level: Medium
All installations are affected by it but exploiting it might be difficult and would typically require in-depth knowledge of the application.

Severity: High
If exploited a user can impersonate another user, potentially gaining extra or even administrative permissions.

Recently a problem was identified 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

Certain code execution paths can cause the current user to be incorrect. This is most likely to happen when JNDI initial contexts are used repeatedly to log users in but can even occur in programs that never explicitly execute a login. All installations are susceptible by this vulnerability and should follow the suggested action below.

The following versions of WebLogic Server and Express are affected by this vulnerability
  • WebLogic Server and Express 7.0 Service Pack 3, all platforms

II. SUGGESTED ACTION

Oracle strongly recommends the following course of actions:

WebLogic Server and Express 7.0 Service Pack 3

  • Download and apply the patch #7824690 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 4 is available, you can use that Service Pack instead of 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