Authentication Bypass Affecting system.net.http.winhttphandler package, versions [,4.0.2) [4.3,4.5.4)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.11% (45th percentile)

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  • Snyk ID SNYK-DOTNET-SYSTEMNETHTTPWINHTTPHANDLER-60044
  • published 12 May 2017
  • disclosed 12 May 2017
  • credit Mikhail Shcherbakov

How to fix?

Upgrade System.Net.Http.WinHttpHandler to version 4.0.2, 4.5.4 or higher.

Overview

Affected versions of this package are vulnerable to Authentication Bypass. The ASP.NET Core fails to properly sanitize the _Web Request Handler_ component, allowing an attacker to spoof web requests and bypass authentication.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None