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  • S2-049
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Summary

A DoS attack is available for Spring secured actions

Who should read this

All Struts 2 developers and users

Impact of vulnerability

A DoS attack is available for Spring secured actions

Maximum security rating

High

Recommendation

Upgrade to Struts 2.5.12 or Struts 2.3.33

Affected Software

Struts 2.3.7 - Struts 2.3.32, Struts 2.5 - Struts 2.5.10.1

Reporter

Yasser Zamani <yasser dot zamani at live dot com>

CVE Identifier

CVE-2017-9787

Problem

When using a Spring AOP functionality to secure Struts actions it is possible to perform a DoS attack even if user was not properly authenticated but an application mixed secured and not secured actions in one class.

Solution

Upgrade to Apache Struts version 2.5.12 or 2.3.33.

Backward compatibility

No backward incompatibility issues are expected.

Workaround

Please define the below constant in a struts.xml file:

 

 

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