Security Advisories and Notifications


Security Advisory: (BEA04-67.00)

From: Oracle Corporation

Minor Subject: Upgrade and patches are available to prevent a showcode vulnerability

Product(s) Affected: WebLogic Server and WebLogic Express

Threat level: Low
To be exploited, this security vulnerability it requires cross-mounting of disks that support case-insensitive filenames to an operating system that has case-sensitive filenames.

Severity: Low
Some URLs will not be correctly protected.

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 below). 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 can occur when WebLogic Server is running on an operating system that provides case-sensitive filenames and cross-mounts directories containing Web applications from an operating system that does not support case-sensitive filenames. For example, this problem could occur when mounting Windows-based Web applications onto a Linux-based WebLogic Server.

This vulnerability can result in some URL patterns in the web.xml file not being correctly evaluated and therefore not correctly protected. Therefore, some URLs may not be correctly protected. The associated patch adds configuration options to specify that Web application files should be treated as case-insensitive even though the current operating system is running in a case-sensitive mode.

The patches below address this vulnerability.

The following versions of WebLogic Server are affected by this vulnerability:
  • For WebLogic Server 8.1, released through Service Pack 2, on non-Windows
  • platforms
  • For WebLogic Server 7.0, released through Service Pack 5, on non-Windows platforms
  • For WebLogic Server 6.1, released through Service Pack 6, on non-Windows platforms

II. SUGGESTED ACTION


Oracle strongly recommends the following course of actions:

Ensure that there is no "case confusion" on the mounted file system. That is, ensure that the expected case is appearing for all filenames and that this case matches what is specified in the URL patterns of the web.xml files.

Apply the patches described below:

WebLogic Server 8.1

Upgrade to WebLogic Server 8.1 Service Pack 3.

WebLogic Server and WebLogic Express 7.0
  1. Upgrade to WebLogic Server 7.0 Service Pack 5
  2. Download and apply the patch #7823605 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 7.0 Service Pack 6 will include the functionality in this patch.

WebLogic Server and WebLogic Express 6.1
  1. Upgrade to WebLogic Server 6.1 Service Pack 6
  2. Download and apply the patch:
  3. Download and apply the patch #7823596 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