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Assessment Title
Rule Text
The ESXi host must exclusively enable Transport Layer Security (TLS) 1.2 for all endpoints.
Description
Discussion Text
TLS 1.0 and 1.1 are deprecated protocols with well-published shortcomings and vulnerabilities. TLS 1.2 should be enabled on all interfaces and SSLv3, TL 1.1, and 1.0 disabled, where supported.
Mandating TLS 1.2 may break third-party integrations and add-ons to vSphere. Test these integrations carefully after implementing TLS 1.2 and roll back where appropriate.
On interfaces where required functionality is broken with TLS 1.2, this finding is not applicable until such time as the third-party software supports TLS 1.2.
Modify TLS settings in the following order:
1. vCenter.
2. ESXi.
Satisfies: SRG-OS-000480-VMM-002000, SRG-OS-000425-VMM-001710
Mandating TLS 1.2 may break third-party integrations and add-ons to vSphere. Test these integrations carefully after implementing TLS 1.2 and roll back where appropriate.
On interfaces where required functionality is broken with TLS 1.2, this finding is not applicable until such time as the third-party software supports TLS 1.2.
Modify TLS settings in the following order:
1. vCenter.
2. ESXi.
Satisfies: SRG-OS-000480-VMM-002000, SRG-OS-000425-VMM-001710
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