Man-in-the-Middle (MitM) Affecting symfony/http-foundation package, versions >=2.0.0, <2.3.27 >=2.4.0, <2.5.11 >=2.6.0, <2.6.6


0.0
medium

Snyk CVSS

    Attack Complexity Low

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  • Snyk ID SNYK-PHP-SYMFONYHTTPFOUNDATION-70180
  • published 1 Apr 2015
  • disclosed 1 Apr 2015
  • credit Dmitrii Chekaliuk

How to fix?

Upgrade symfony/http-foundation to version 2.3.27, 2.6.6, 2.5.11 or higher.

Overview

Affected versions of symfony/http-foundation are vulnerable to Man-in-the-Middle (MitM).

The Symfony\Component\HttpFoundation\Request class provides a mechanism that ensures it does not trust HTTP header values coming from a "non-trusted" client. Unfortunately, it assumes that the remote address is always a trusted client if at least one trusted proxy is involved in the request; this allows a man-in-the-middle attack between the latest trusted proxy and the web server.