Security Advisories and Notifications


Security Advisory: (BEA04-65.00)

From: Oracle Corporation

Minor Subject: Patches are available to prevent unauthorized access

Product(s) Affected: WebLogic Server and WebLogic Express

Threat level: Medium
Any client that can access a JNDI server can exploit this vulnerability.

Severity: High
The WebLogic Server instance can be rendered unusable and potentially confidential data can be stolen.

Recently 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). Oracle 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.
This vulnerability occurs in both WebLogic Server and WebLogic Express. Throughout the rest of this advisory, references to WebLogic Server apply to both products.

I. ADVISORY

This vulnerability occurs because some internal WebLogic Server objects that are bound into the JNDI tree and are insufficiently protected. Some of these objects control key functions of the server. Simply unbinding the appropriate objects will render the server unreachable (denial-of-service attack). It may be possible through clever coding to leave the server operational but to have some confidential data transmitted to an attacker's object rather than the internal WebLogic Server object for which it was intended.

This security vulnerability affects all installations of the affected releases. Access to the JNDI tree is required to exploit it. The patches available in this security advisory address this vulnerability.

The following versions of WebLogic Server and WebLogic Express are affected by this vulnerability:
  • WebLogic Server 8.1, released through Service Pack 2, on all platforms
  • WebLogic Server 7.0, released through Service Pack 5, on all platforms
  • WebLogic Server 6.1, released through Service Pack 6, on all platforms

II. SUGGESTED ACTION

Oracle strongly recommends the following course of actions:

WebLogic Server 8.1

Upgrade to WebLogic Server 8.1 Service Pack 3.

WebLogic Server 7.0
  1. Upgrade to WebLogic Server 7.0 Service Pack 5
  2. Download and apply the patch #7824570 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.
  3. Follow the instructions in the readme file to apply the .jar files to your installation.
WebLogic Server 7.0 Service Pack 6 will include the functionality in this patch.

WebLogic Server 6.1
  1. Upgrade to Service Pack 6
  2. Download and apply the patch #7824611 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 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