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Code Issues

fix: enforce TLSv1.3 on Mozilla-Modern SSL policy

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This commit is contained in:
Nicolas Duchon 2023-12-08 22:41:29 +01:00
parent c6868ed6be
commit 4c556290f9
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GPG Key ID: EA3151C66A4D79E7
1 changed files with 10 additions and 9 deletions
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19
nginx.tmpl
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@ -142,15 +142,12 @@
{{- define "ssl_policy" }}
{{- if eq .ssl_policy "Mozilla-Modern" }}
ssl_protocols TLSv1.3;
{{- /*
* nginx currently lacks ability to choose ciphers in TLS 1.3 in
* configuration, see https://trac.nginx.org/nginx/ticket/1529.
* A possible workaround can be modify /etc/ssl/openssl.cnf to change
* it globally (see https://trac.nginx.org/nginx/ticket/1529#comment:12).
* Explicitly set nginx default value in order to allow single servers
* to override the global http value.
*/}}
ssl_ciphers HIGH:!aNULL:!MD5;
{{- /*
* This ssl_ciphers directive is not used but necessary to get TLSv1.3 only.
* see https://serverfault.com/questions/1023766/nginx-with-only-tls1-3-cipher-suites
*/}}
ssl_ciphers ECDHE-ECDSA-AES256-GCM-SHA384;
ssl_conf_command Ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256;
ssl_prefer_server_ciphers off;
{{- else if eq .ssl_policy "Mozilla-Intermediate" }}
ssl_protocols TLSv1.2 TLSv1.3;
@ -162,6 +159,10 @@
ssl_prefer_server_ciphers on;
{{- else if eq .ssl_policy "AWS-TLS13-1-3-2021-06" }}
ssl_protocols TLSv1.3;
{{- /*
* This ssl_ciphers directive is not used but necessary to get TLSv1.3 only.
* see https://serverfault.com/questions/1023766/nginx-with-only-tls1-3-cipher-suites
*/}}
ssl_ciphers ECDHE-ECDSA-AES256-GCM-SHA384;
ssl_conf_command Ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256;
ssl_prefer_server_ciphers on;