What is the CVSS score of CVE-2020-8554?

CVE-2020-8554 has a CVSS 3.1 base score of 6.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 25.3%.

Is there a public PoC exploit available for CVE-2020-8554?

Yes, a public proof-of-concept exploit is available for CVE-2020-8554. Prioritise patching immediately. EPSS: 25.3%.

Is there a patch available for CVE-2020-8554?

Yes, a patch is available for CVE-2020-8554. Update the affected software to the latest version immediately.

Kubernetes CVE-2020-8554

MEDIUM

Unverified Ownership (CWE-283)

2021-01-21 jordan@liggitt.net

Information Disclosure Kubernetes Communications Cloud Native Core Network Slice Selection Function Communications Cloud Native Core Policy Communications Cloud Native Core Service Communication Proxy

6.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

CVE Published

Jan 21, 2021 - 17:15 cve.org

MEDIUM 6.3

DescriptionCVE.org

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.

AnalysisAI

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. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 25.3%.

Technical ContextAI

This vulnerability is classified under CWE-283. 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 products include: Kubernetes, Oracle Communications Cloud Native Core Network Slice Selection Function, Oracle Communications Cloud Native Core Policy, Oracle Communications Cloud Native Core Service Communication Proxy.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.