Home page logo
/

fulldisclosure logo Full Disclosure mailing list archives

[CVE-2011-4343] Apache MyFaces information disclosure vulnerability
From: Leonardo Uribe <lu4242 () apache org>
Date: Mon, 05 Dec 2011 09:33:18 -0500

--------------------------------------------------------------------------------------------------
CVE-2011-4343: Apache MyFaces information disclosure vulnerability

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
            MyFaces Core 2.0.1 to 2.0.10
            MyFaces Core 2.1.0 to 2.1.4

Description:

If a submit outcome includes both faces-redirect=true and
includeViewParams=true
(or faces-include-view-params=true alias) it is possible to inject EL
expressions
directly into input fields mapped as view parameters.

Mitigation:

2.0.x users should update to 2.0.11
2.1.x users should update to 2.1.5
or apply the patch available on
https://issues.apache.org/jira/secure/attachment/12504807/MYFACES-3405-1.patch

Example:

Bean (request scoped):

private String value; // +getter+setter

public String submit() {
 String viewId = FacesContext.
getCurrentInstance().getViewRoot().getViewId();
 return viewId + "?faces-redirect=true&amp;includeViewParams=true";
}

View:

<f:metadata>
<f:viewParam name="value" value="#{bean.value}" />
</f:metadata>
<h:form>
<h:inputText value="#{bean.value}" />
<h:commandButton value="submit" action="#{bean.submit}" />
</h:form>

Credit: Issue reported on JAVASERVERFACES issue tracer by user BalusC,
and reported back to MyFaces by Frederick Kämpfer.

References:
https://issues.apache.org/jira/browse/MYFACES-3405 <https://issues.apache.org/jira/browse/MYFACES-3405> http://java.net/jira/browse/JAVASERVERFACES-2247 <http://java.net/jira/browse/JAVASERVERFACES-2247>

--------------------------------------------------------------------------------------------------

regards,

Leonardo Uribe
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

  By Date           By Thread  

Current thread:
  • [CVE-2011-4343] Apache MyFaces information disclosure vulnerability Leonardo Uribe (Dec 06)
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault