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Authorization Bypass Affecting github.com/emicklei/go-restful package, versions <2.16.0

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High

    Threat Intelligence

    Exploit Maturity Proof of concept

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  • Snyk ID SNYK-GOLANG-GITHUBCOMEMICKLEIGORESTFUL-2435653
  • published 9 May 2022
  • disclosed 30 Mar 2022
  • credit Unknown
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Introduced: 30 Mar 2022

CVE NOT AVAILABLE CWE-285 Open this link in a new tab

How to fix?

Upgrade github.com/emicklei/go-restful to version 2.16.0 or higher.

Overview

Affected versions of this package are vulnerable to Authorization Bypass when using CORS Filter with a configurable AllowedDomains parameter (which is an array of domains allowed in CORS policy), with the same value as exists in allowedOriginPatterns parameter (used for matching origin using regular expression), it causes for all domains in AllowedDomains to be also used as regular expression for matching origin validation. This behavior means that if example.com exists in AllowedDomains, all domains starting with example.com would be acceptable, including example.com.hacker.domain.