Security Advisories and Notifications

Security Advisory: (BEA04-47.00)

From: Oracle Corporation

Minor Subject: Patch and upgrade available to prevent SSL Certificate re-use

Product(s) Affected: WebLogic Server and Express

Threat level: Low
Only Web Services fat clients that use 2-way SSL to logon as different users are vulnerable.

Severity: Medium
Allows one user to execute commands as another user.

Recently a customer identified a problem that could potentially cause a security vulnerability in certain versions of WebLogic Server and Express. A patch and an upgrade 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

Due to a coding error in the Web Services client code, a Web Services fat client that connects to the same WebLogic Server via two-way SSL multiple times with different client certificates might have an incorrect user identity used on the second and subsequent connections. All Web Services clients that use 2-way SSL with different certificates to the same URL suffer from this problem.

The following versions of WebLogic Server and Express are affected by this vulnerability
  • WebLogic Server and Express 7.0, released through Service Pack 4, all platforms


Oracle strongly recommends the following course of actions:

For WebLogic Server and Express 7.0
  • Upgrade to Service Pack 4 and download and apply the patch #7824715 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 is available, you may use that Service Pack instead of Service Pack 4 and 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 Specific lockdown information is provided at 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:

Additional users who wish to register for product advisory distribution should follow the registration directions at:

Security issues can be reported to Oracle by following the directions at:

Thank you,
Oracle Corporation