The Kubernetes API Server must use TLS 1.2, at a minimum, to protect the confidentiality of sensitive data during electronic dissemination.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-242378	CNTR-K8-000170	SV-242378r960759_rule	CCI-000068	medium
Description
The Kubernetes API Server will prohibit the use of SSL and unauthorized versions of TLS protocols to properly secure communication. The use of unsupported protocol exposes vulnerabilities to the Kubernetes by rogue traffic interceptions, man-in-the-middle attacks, and impersonation of users or services from the container platform runtime, registry, and keystore. To enable the minimum version of TLS to be used by the Kubernetes API Server, the setting "tls-min-version" must be set.
STIG			Date
Kubernetes Security Technical Implementation Guide			2025-05-16

Related Frameworks

1 mapping across 4 frameworks

SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

NET-14.2Protection of Confidentiality / Integrity Using Encryption

1.00

DISA STIG Benchmark (XCCDF)2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
SCF Secure Traceability Relationship Mapping (STRM)2026.2equal to

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (33) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(1)Monitoring and Control

1.00

DISA STIG Benchmark (XCCDF)2intersects(normalised)
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DISA CCI List2025-01-23equal to(normalised)

AC-17(2)Protection of Confidentiality and Integrity Using Encryption

1.00

DISA STIG Benchmark (XCCDF)2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

AC-3Access Enforcement

1.00

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CM-6Configuration Settings

1.00

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CM-6(1)Automated Management, Application, and Verification

1.00

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CM-7Least Functionality

1.00

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CM-7(1)Periodic Review

1.00

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IA-2(8)Access to Accounts — Replay Resistant

1.00

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DISA CCI List2025-01-23equal to(normalised)

IA-2(9)Network Access to Non-privileged Accounts — Replay Resistant

1.00

DISA STIG Benchmark (XCCDF)2intersects(normalised)
DISA STIG Benchmark (XCCDF)V1R3our copyintersects(normalised)
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DISA CCI List2025-01-23equal to(normalised)

IA-3Device Identification and Authentication

1.00

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+23 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.1.13

1.00

DISA STIG Benchmark (XCCDF)2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
NIST SP 800-171 Rev 2, Appendix DRev 2 (Feb 2020, errata Jan 2021)equal to(normalised)

CCI1 mapping

CCI-000068

1.00

DISA STIG Benchmark (XCCDF)2intersects(normalised)

Details

Check Text (C-242378r960759_chk)

Change to the /etc/kubernetes/manifests directory on the Kubernetes Control Plane. Run the command: grep -i tls-min-version * If the setting "tls-min-version" is not configured in the Kubernetes API Server manifest file or it is set to "VersionTLS10" or "VersionTLS11", this is a finding.

Fix Text (F-45611r863738_fix)

Edit the Kubernetes API Server manifest file in the /etc/kubernetes/manifests directory on the Kubernetes Control Plane. Set the value of "--tls-min-version" to "VersionTLS12" or higher.