Authentication Bypass Affecting github.com/caddyserver/caddy/caddyhttp/httpserver package, versions <0.10.13


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.33% (72nd percentile)

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  • Snyk ID SNYK-GOLANG-GITHUBCOMCADDYSERVERCADDYCADDYHTTPHTTPSERVER-572375
  • published 16 Jun 2020
  • disclosed 16 Jun 2020
  • credit Unknown

How to fix?

Upgrade github.com/caddyserver/caddy/caddyhttp/httpserver to version 0.10.13 or higher.

Overview

github.com/caddyserver/caddy/caddyhttp/httpserver is an implementation of an HTTP server on top of Caddy.

Affected versions of this package are vulnerable to Authentication Bypass. It mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.

CVSS Scores

version 3.1
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Snyk

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

NVD

9.8 critical