The NSX-T Manager must disable TLS 1.1 and enable TLS 1.2.

An XCCDF Rule

Description

<VulnDiscussion>TLS 1.0 and 1.1 are deprecated protocols with well-published shortcomings and vulnerabilities. TLS 1.2 must be enabled on all interfaces and TLS 1.1 and 1.0 disabled where supported.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID: SV-251798r879588_rule
Severity: Medium
References: CCI-000382
Updated: about 1 year ago

Capture the output from the check GET command and update the TLS 1.1 protocol to false.

Execute the following API call using curl or another REST API client:

PUT https://<nsx-mgr>/api/v1/cluster/api-service
Example request body:

{
  "global_api_concurrency_limit": 199,
  "client_api_rate_limit": 100,
  "client_api_concurrency_limit": 40,
  "connection_timeout": 30,
  "redirect_host": "",
  "cipher_suites": [
    {"enabled": true, "name": "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"},
    {"enabled": true, "name": "TLS_RSA_WITH_AES_256_GCM_SHA384"},
    {"enabled": true, "name": "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"},
    {"enabled": true, "name": "TLS_RSA_WITH_AES_128_GCM_SHA256"}
    {"enabled": true, "name": "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384}",
    {"enabled": true, "name": "TLS_RSA_WITH_AES_256_CBC_SHA256"},
    {"enabled": true, "name": "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"},
    {"enabled": true, "name": "TLS_RSA_WITH_AES_256_CBC_SHA"},
    {"enabled": true, "name": "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256"},
    {"enabled": true, "name": "TLS_RSA_WITH_AES_128_CBC_SHA256"},
    {"enabled": false, "name": "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"},
    {"enabled": false, "name": "TLS_RSA_WITH_AES_128_CBC_SHA"}
  ],
  "protocol_versions": [
    {"enabled": false, "name": "TLSv1.1"},
    {"enabled": true, "name": "TLSv1.2"}
  ]
}

Note: Changes are applied to all nodes in the cluster. The API service on each node will restart after it is updated using this API. There may be a delay of up to a minute or so between the time this API call completes and when the new configuration goes into effect.

The NSX-T Manager must disable TLS 1.1 and enable TLS 1.2.

Description

Remediation - Manual Procedure