High severity · published Jul 27, 2020
CVE-2020-8558
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…
8.8
CVSS
3.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KU
Kubernetes · Kubernetes
1.1.0 through 1.16.10; 1.17.0 through 1.17.6; 1.18.0 through 1.18.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8558
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8558
Exploit
https://github.com/kubernetes/kubernetes/issues/92315
Exploit
https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200821-0001/
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