HTTP Apache Struts Vulnerabilities

ALTERNATIVE NAMES

HTTP Apache Struts Vulnerabilities, Apache Struts Remote Code Execution, CVE-2018-11776, CVE-2017–5638

AFFECTED SYSTEMS

Apache Struts 2 2.3.x < 2.3.32 and 2.5.x < 2.5.10.1

SEVERITY

Critical

BACKGROUND

More than 800 Million consumer data were leaked from Equifax, that costs more than $600 million to the well-known credit reporting agency. It is recommended that you update your systems immediately.

DESCRIPTION

Struts2 is a framework for Apache Tomcat used for developing Java-based web applications. A vulnerability reported by CVE-2017-5638 states a remote code execution can be made by an attacker and may execute arbitrary code on the server.

ANALYSIS

In the parser of Struts2 an exception will occur if Content-Type Header is unknown. Normally this exception will throw an error to the end-user but with an altered header an attacker may execute arbitrary code on the server. The methods on how to repeat the flaw are available on the Net.

SOLUTION

Apache offers a set of patches and upgrades and upgrading to the latest version will solve the problem

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