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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

MediumHigh

Recommendation

Upgrade to Struts 2.5.12

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

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When using a Spring AOP functionality to secure Struts actions it is possible to perform a DoS attack when 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.

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