Privilege Escalation Affecting github.com/kubernetes/apimachinery/pkg/util/proxy package, versions <0.19.0-rc.1


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.34% (73rd percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMKUBERNETESAPIMACHINERYPKGUTILPROXY-590105
  • published16 Jul 2020
  • disclosed15 Jul 2020
  • creditUnknown

Introduced: 15 Jul 2020

CVE-2020-8559  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade github.com/kubernetes/apimachinery/pkg/util/proxy to version 0.19.0-rc.1 or higher.

Overview

github.com/kubernetes/apimachinery/pkg/util/proxy is a Package proxy provides transport and upgrade support for proxies.

Affected versions of this package are vulnerable to Privilege Escalation. If an attacker is able to intercept certain requests to the Kubelet, they can send a redirect response that may be followed by a client using the credentials from the original request. This can lead to compromise of other nodes.

CVSS Scores

version 3.1