Man-in-the-Middle (MitM) Affecting io.undertow:undertow-core package, versions [,1.4.18.SP1) [1.4.20.Final,1.4.24.Final) [2.0.0.Final,2.0.2.Final)

  • Attack Complexity


  • Confidentiality


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  • snyk-id


  • published

    1 Apr 2018

  • disclosed

    12 Mar 2018

  • credit

    Jan Stourac

How to fix?

Upgrade io.undertow:undertow-core to version 1.4.18.SP1, 1.4.24.Final, 2.0.2.Final or higher.


io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Man-in-the-Middle (MitM) attacks. When using a Digest authentication, the server does not ensure that value of the URI attribute in the "Authorization" header matches URI in HTTP request line. An attacker can use this attack vector in order to access desired content on a server.