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Category:   Application (Generic)  >   Apache Struts Vendors:   Apache Software Foundation
Apache Struts Predictable Tokens Let Remote Users Bypass Cross-Site Request Forgery Protection
SecurityTracker Alert ID:  1031309
SecurityTracker URL:
CVE Reference:   CVE-2014-7809   (Links to External Site)
Date:  Dec 8 2014
Impact:   Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.0.0 -
Description:   A vulnerability was reported in Apache Struts. A remote user can bypass cross-site request forgery protections.

A remote user can predict the token values used to prevent cross-site request forgery attacks.

Applications that use <s:token/> support are affected.

Philippe Arteau of Groupe Technologies Desjardins reported this vulnerability.

Impact:   A remote user can bypass the cross-site request forgery protection.
Solution:   The vendor has issued a fix (2.3.20).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Randomization error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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