Improper Certificate Validation Affecting Open this link in a new tab package, versions [,4.1.2) [4.3,4.3.2)

  • Attack Complexity


  • Integrity


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  • snyk-id


  • published

    12 May 2017

  • disclosed

    12 May 2017

  • credit

    Joonwoo Yu, Hyoung-Kee Choi

How to fix?

Upgrade System.Net.Http to version 4.1.2, 4.3.2 or higher.


System.Net.Http is a Provides a programming interface for modern HTTP applications, including HTTP client components that allow applications to consume web services over HTTP and HTTP components that can be used by both clients and servers for parsing HTTP headers.

Affected versions of this package are vulnerable to Improper Certificate Validation. It allows an attacker to bypass Enhanced Security Usage tagging when they present a certificate that is invalid for a specific use.