Security Advisories and Notifications


Subject: Security Advisory (BEA08-159.01)
From: Oracle Corporation
Minor Subject: Requests served through WebLogic proxy servlets may acquire elevated privileges
Product(s) Affected: WebLogic Server and WebLogic Express

This security advisory (BEA08-159.01) contains the corrected remedy for this vulnerability on WebLogic Server 9.0 and WebLogic Express 9.0. Please disregard security advisory BEA07-159.00, as this advisory, BEA08-159.01 supersedes BEA07-159.00.

Threat level: Medium
HttpClusterServlet or HttpProxyServlet may process requests to a back-end WebLogic server on behalf of a WebLogic system identity.

Severity: High
External requests may be able to access resources only accessible to an administrator.

A problem was identified that could potentially cause a security vulnerability in certain versions of WebLogic Server. Patches/Upgrades are 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

WebLogic HttpClusterServlet or HttpProxyServlet, configured with the "SecureProxy" parameter, may serve external requests to back-end WebLogic servers on behalf of a system identity instead of the proxy's own identity. These external requests may be wrongly granted access to certain administrative resources that are only accessible to an administrator.

This advisory resolves the problem by enforcing the use of the proxy identity. The configuration of a proxy has also been enhanced to permit connections using two-way SSL.

Impact and CVSS Ratings:

CVSS Severity Score: 5.6 (Medium)
Attack Range (AV): Remote
Attack Complexity (AC): High
Authentication Level (Au): Not Required
Impact Type: Unauthorized access to administrative resources. Partial confidentiality, integrity, and availability violation
Vulnerability Type: Elevation of privilege
CVSS Base Score Vector: (AV:R/AC:H/Au:NR/C:P/I:P/A:P/B:N)

Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html
Online Calculator: http://nvd.nist.gov/cvss.cfm?calculator

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

  • WebLogic Server 9.1 on all platforms
  • WebLogic Server 9.0 on all platforms
  • WebLogic Server 8.1 released through Service Pack 5, on all platforms
  • WebLogic Server 7.0 released through Service Pack 7, on all platforms
  • WebLogic Server 6.1 released through Service Pack 7, on all platforms

II. SUGGESTED ACTION

Oracle strongly recommends the following course of actions.

WebLogic Server 9.1

  1. Use the Smart Update tool to install the 9.1 patch for CR218580.
  2. WebLogic Server 9.2 includes the functionality in this patch.

WebLogic Server 9.0

  1. Download and apply the 9.0 GA Combo patch #7824963 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.
  2. Download and apply the patch #7823931 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. Place the jar for the patch at the end of the PATCH_CLASSPATH.

WebLogic Server and WebLogic Express version 8.1

  1. Upgrade to WebLogic Server and WebLogic Express 8.1 Service Pack 6.

WebLogic Server and WebLogic Express version 7.0

  1. Upgrade to WebLogic Server and WebLogic Express 7.0 Service Pack 7.
  2. Download and apply the patch #7823919 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. Place the jar for the patch in the CLASSPATH before the weblogic.jar file.

WebLogic Server and WebLogic Express version 6.1

  1. Upgrade to WebLogic Server and WebLogic Express 6.1 Service Pack 7.
  2. Download and apply the patch #7823911 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. Place the jar for the patch in the CLASSPATH before the weblogic.jar file.


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