Security Advisories and Notifications

Security Advisory: (BEA06-132.00)

From: Oracle Corporation

Minor Subject: Incorrect Quality of Service on some transaction coordination

Product(s) Affected: WebLogic Server

Threat level: Medium
In specific circumstances, some transaction coordinator operations may not be protected by SSL. This can only be exploited by attackers with access to the network(s) over which the transaction spans.

Severity: Low
An attacker may be able to snoop or spoof certain transaction coordinator operations.

A problem was identified that could potentially cause a security vulnerability in certain versions of WebLogic Server. An upgrade 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.

I. Advisory

A client requesting a secure transaction channel did not always get one. The client connection manager was not properly setting the Quality of Service on the channel in certain circumstances, which might result in some transaction coordinator messages traveling on a non-SSL channel.

This advisory resolves the issue by ensuring that the Quality of Service is correctly set and maintained.

The following versions of WebLogic Server are affected by this vulnerability:

  • WebLogic Server 8.1 released through Service Pack 3, on all platforms


Oracle strongly recommends the following course of actions.

WebLogic Server and WebLogic Express version 8.1

  • Upgrade to service pack 4.


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