Improper Access Control Affecting github.com/openshift/cluster-ingress-operator/pkg/operator/controller/ingress package, versions *


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.22% (61st percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMOPENSHIFTCLUSTERINGRESSOPERATORPKGOPERATORCONTROLLERINGRESS-1050164
  • published10 Dec 2020
  • disclosed10 Dec 2020
  • creditUnknown

Introduced: 10 Dec 2020

CVE-2020-27836  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

github.com/openshift/cluster-ingress-operator/pkg/operator/controller/ingress is an OpenShift component which enables external access to cluster services by configuring Ingress Controllers, which route traffic as specified by OpenShift Route and Kubernetes Ingress resources.

Affected versions of this package are vulnerable to Improper Access Control. Until the 4.6.6 version of OpenShift Container Platform changes to the router-default service to allow only certain IP source ranges was possible by directly editing the service object. Since 4.6.6 changes to the loadBalancerSourceRanges field are overwritten to the default of all IP ranges. If a cluster is affected by this issue an attacker can use the flaw to access resources which should be restricted to the specified IP ranges.

CVSS Base Scores

version 3.1