CVE-2020-8558

MEDIUM

Kubelet and kube-proxy <1.16.10-1.18.3 - SSRF

Title source: llm

Description

The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node's network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.

Exploits (2)

nomisec WRITEUP 43 stars

by tabbysable · poc

https://github.com/tabbysable/POC-2020-8558

View Code ZIP pw:eip

nomisec WORKING POC 3 stars

by rhysemmas · poc

https://github.com/rhysemmas/martian-packets

View Code ZIP pw:eip

References (3)

[Exploit, Mitigation, Patch, Third Party Advisory] https://github.com/kubernetes/kubernetes/issues/92315

[Exploit, Mailing List, Mitigation, Third Party Advisory] https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20200821-0001/

Scores

CVSS v3 5.4

EPSS 0.2015

EPSS Percentile 95.5%

Attack Vector ADJACENT_NETWORK

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Details

CWE

CWE-420

Status published

Products (2)

k8s.io/kubernetes 1.18.0 - 1.18.4Go

kubernetes/kubernetes 1.1.0 - 1.16.10

Published Jul 27, 2020

Tracked Since Feb 18, 2026