CVE-2020-8554CWE-283

Kubernetes man in the middle using LoadBalancer or ExternalIPs

Medium · published January 21, 2021

CVSS v3.1
6.3
EPSS
9%
Percentile
95.4
In the wild
Unconfirmed
What it is

Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.09274 · 95.4th percentile
Weakness
CWE-283 · Unverified Ownership
Published
2021-01-21T17:09Z
EPSS history
Timeline
  • 21 JAN 17:09Z
    Kubernetes man in the middle using LoadBalancer or ExternalIPs
    cvelistv5