Security Advisories and Notifications


Subject: Security Advisory (BEA08-185.00)
From: Oracle Corporation
Minor Subject: Cross-site scripting (XSS) vulnerabilities in Web applications using WebLogic Workshop NetUI page flows
Product(s) Affected: WebLogic Workshop

Threat level: High
Although this requires careful orchestration, this method of attack has been publicly documented.

Severity: High
An attacker may be able to trick another user into divulging their credentials or executing malicious code on behalf of the attacker.

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

Background: Cross-Site Scripting (XSS) vulnerabilities are well documented in the industry. An XSS vulnerability requires three parties:

  • 1. A susceptible Web site.
  • 2. A valid user of the Web site.
  • 3. An attacker.

The attacker tricks the user (usually via misleading links on web pages or within emails) to exploit the XSS vulnerability in the Web site. This allows the attacker to run arbitrary client-side (i.e. browser) scripts that execute as the identity of the valid user. Typically this is used to steal session cookies thereby allowing the attacker to impersonate the valid user. XSS vulnerabilities can arise due to bugs in the Web server or in applications running on it.

Applications implemented using the WebLogic Workshop NetUI framework and page flows may be vulnerable to XSS because of a URI encoding error when displaying an invalid action URI.

This advisory resolves an issue with the WebLogic Workshop NetUI framework that makes Web applications using page flows susceptible to cross-site scripting (XSS) attacks.

Impact and CVSS Ratings:

CVSS Severity Score: 7.6 (High)
Attack Range (AV): Network
Attack Complexity (AC): High
Authentication Level (Au): None
Impact Type: Complete confidentiality, integrity and availability violation
Vulnerability Type: Elevation of Privilege
CVSS Base Score Vector: (AV:N/AC:H/Au:N/C:C/I:C/A:C)

Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html
Online Calculator: http://nvd.nist.gov/cvss.cfm?calculator&version=2

The following versions of WebLogic Workshop are affected by this vulnerability

  • WebLogic Workshop 8.1 released through Service Pack 5, on all platforms.

II. SUGGESTED ACTION

Oracle strongly recommends the following course of actions.

WebLogic Workshop 8.1

Upgrade to WebLogic Workshop 8.1 Service Pack 6.



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