Update AWS ALB security policies for 2023.3.22 #198
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From this accouncement: https://aws.amazon.com/about-aws/whats-new/2023/03/application-load-balancer-tls-1-3/ TLSv1.3 support is now generally available in AWS ALB. They have added a new set of security policies that enable TLSv1.3. I have selected the following policies which are the closest fit to the Mozilla server side TLS recommendations: Old: Remains TLS-1-0-2015-04. This policy doesn't support TLSv1.3, but it is the only policy available which supports DES-CBC3-SHA. Intermediate: Switched from FS-1-2-Res-2019-08 to TLS13-1-2-2021-06. These two policies support the same set of TLSv1.2 ciphers, but the newer one also adds TLSv1.3 support. Modern: Can be supported now, using TLS13-1-3-2021-06.
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I'd like to +1 these recommendations it looks like it matches AWS's updated docs on the subject too. |
janbrasna
suggested changes
Feb 2, 2024
| @@ -40,7 +40,7 @@ Resources: | |||
| LoadBalancerArn: !Ref ExampleALB | |||
| Port: 443 | |||
| Protocol: HTTPS | |||
| SslPolicy: {{#if (includes "TLSv1" output.protocols)}}ELBSecurityPolicy-TLS-1-0-2015-04{{else}}ELBSecurityPolicy-FS-1-2-Res-2019-08{{/if}} | |||
| SslPolicy: {{#if (includes "TLSv1" output.protocols)}}ELBSecurityPolicy-TLS-1-0-2015-04{{else}}{{#if (includes "TLSv1.2" output.protocols)}}ELBSecurityPolicy-TLS13-1-2-2021-06{{else}}ELBSecurityPolicy-TLS13-1-3-2021-06{{/if}}{{/if}} | |||
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Suggested change
| SslPolicy: {{#if (includes "TLSv1" output.protocols)}}ELBSecurityPolicy-TLS-1-0-2015-04{{else}}{{#if (includes "TLSv1.2" output.protocols)}}ELBSecurityPolicy-TLS13-1-2-2021-06{{else}}ELBSecurityPolicy-TLS13-1-3-2021-06{{/if}}{{/if}} | |
| SslPolicy: {{#if (includes "TLSv1" output.protocols)}}ELBSecurityPolicy-TLS-1-0-2015-04{{else}}{{#if (includes "TLSv1.2" output.protocols)}}ELBSecurityPolicy-TLS13-1-2-Res-2021-06{{else}}ELBSecurityPolicy-TLS13-1-3-2021-06{{/if}}{{/if}} |
| @@ -14,11 +14,11 @@ module.exports = { | |||
| awsalb: { | |||
| hasVersions: false, | |||
| highlighter: 'yaml', | |||
| latestVersion: '2019.8.1', | |||
| latestVersion: '2023.3.22', | |||
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That's actually a good version number — originally it used to be based on the date of the policy (i. e. 2021.6.1 in this case), however this aligns better with the announcement of tls13 availability for ALB (so the 2023.3.22 can be used as tls13 value without any ambiguity) so I'd say that's ok @gene1wood?
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From this accouncement:
https://aws.amazon.com/about-aws/whats-new/2023/03/application-load-balancer-tls-1-3/ TLSv1.3 support is now generally available in AWS ALB. They have added a new set of security policies that enable TLSv1.3. I have selected the following policies which are the closest fit to the Mozilla server side TLS recommendations:
Old:
Remains
TLS-1-0-2015-04. This policy doesn't support TLSv1.3, but it is the only policy available which supports DES-CBC3-SHA.Intermediate:
Switched from
FS-1-2-Res-2019-08toTLS13-1-2-2021-06. These two policies support the same set of TLSv1.2 ciphers, but the newer one also adds TLSv1.3 support.Modern:
Can be supported now, using
TLS13-1-3-2021-06.