CVE-2020-8554

Kubernetes man in the middle using LoadBalancer or ExternalIPs

MEDIUM
5
CVSS Score
Published: January 21, 2021 at 05:09 PM UTC
Updated: June 17, 2026 at 03:26 AM UTC
4 products affected across 2 vendorsCommunications Cloud Native Core PolicyKubernetesCommunications Cloud Native Core Network Slice Selection Function

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Severity
MEDIUM5
Exploit prediction
EPSS 9%

Description

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.

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-283NVD-CWE-noinfo

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