Security Advisories and Notifications


Security Advisory: (BEA04-56.00)

From: Oracle Corporation

Minor Subject: Upgrades are available to correct servlet security error.

Product(s) Affected: WebLogic Server and WebLogic Express

Threat level: Low
This vulnerability affects sites with web applications deployed using an illegal URL pattern syntax.

Severity: High
Security will be ignored for some URLS.

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). BEA System treats potential security problems with the highest degree of urgency and does everything possible to ensure the security of all customer assets. 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

This security vulnerability occurs under the following circumstance.

A deployer specifies an URL pattern that ends with * but not /*. This syntax is illegal per the Servlet 2.3 specification but due to a coding error these URL patterns are treated as wildcards.

For example:

In WebLogic Server version 6.x, the illegal URL pattern of /mydir* is treated the same as the legal URL pattern /mydir/*. If a WebLogic Server version 6.x Web application used the illegal syntax and is moved to WebLogic Server version 7.x or greater, the URL patterns that were protected by the illegal syntax will stop being protected. There is no notification in the change of protection.

The following versions of WebLogic Server and WebLogic Express are affected by this vulnerability

  • WebLogic Server and WebLogic Express version 8.1 through Service Pack 1, on all platforms
  • WebLogic Server and WebLogic Express version 7.0 through Service Pack 4, on all platforms

II. SUGGESTED ACTION

Oracle strongly recommends the following course of actions:

WebLogic Server and WebLogic Express version 8.1

Upgrade to WebLogic Server and WebLogic Express version 8.1 Service Pack 2.

or

In all deployed web applications, convert the illegal URL patterns to legal syntax.


WebLogic Server and WebLogic Express version 7.0

Upgrade to WebLogic Server and WebLogic Express version 7.0 Service Pack 5.

or

In all deployed web applications, convert the illegal URL patterns to legal syntax.


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