Red Hat Summit부록 F. 보안 강화
다음 섹션에서는 언더클라우드의 보안을 강화하기 위한 몇 가지 제안 사항을 제공합니다.
F.1. HAProxy에 대한 SSL/TLS 암호화 방식 및 규칙 변경
링크 복사링크가 클립보드에 복사되었습니다!
언더클라우드에서 SSL/TLS를 활성화한 경우( 4.9절. “director 설정 매개변수”참조) HAProxy 구성에 사용되는 SSL/TLS 암호화 방식 및 규칙을 강화할 수 있습니다. 이를 통해 POODLE 취약점과 같은 SSL/TLS 취약점을 방지할 수 있습니다.
hieradata_override 언더클라우드 설정 옵션을 사용하여 다음 hieradata를 설정합니다.
- tripleo::haproxy::ssl_cipher_suite
- HAProxy에서 사용할 암호화 방식 세트입니다.
- tripleo::haproxy::ssl_options
- HAProxy에서 사용할 SSL/TLS 규칙입니다.
예를 들면 다음 암호화 방식 및 규칙을 사용할 수 있습니다.
-
암호화 방식:
ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-AES128-AES256-AES256-AES256-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-AES256-AES256-AES256-AES256-AES256-RSA-AES256-RSA-AES256-AES256-AES256-AES256-AES256-RSA-AES128-RSA-AES128-ECDSA-AES128-RSA-AES128-AES128-AHA256:ECDHE-RSA-RSA-AES128-AES128-AES128-AES128-GCM-AHA256:ECDHE-RSA-RSA-CHACHA20-AHA384:ECDHE-RSA-RSA-RSA-RSA-ECDSA-GCM-ECDSA-ECDSA-ECDSA-ECDSA-ECDSA-GCM-GCM-GCM-GCM-GCM-GCM:ECDHE- DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-AES256-AES128-AES128-SHA256:ECDHE-RSA-AES128-AES128-AES128-AES128-AES256-SHA384:ECDHE-RSA-AES256:ECDHE-RSA-AES256:ECDHE-RSA-AES128-AES128-AHA384:ECDHE-RSA-AES128-AES128-AES256:ECDHE-RSA-AES256:ECDHE-RSA-AES256:ECDHE-RSA-AES256:ECDHE-RSA-AES256-AES128-AES256:ECDHE-RSA-RSA-AES256-RSA-AES256:ECDHE-RSA-AES128-AES128-AHA384:ECDHE-RSA-AES128-AES128-AES128-AES128-AES256-AES256-AES256-AES256-AES256-AES128-AES256:ECDHE-RSA-RSA-GCM-SHA384:DHE-RSA-RSA-GCM-RSA-RSA-RSA-ECDHE-ECDSA-GCM-GCM -AES256-SHA384:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES256-AES128-SHA256:DHE-RSA-AES128-AES128-SHA:DHE-RSA-AES256-AES256-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES256:DHE-RSA-AES256:DHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES128-AES128-SHA256:DHE-RSA-AES256-AES256-AES256-SHA:DHE-RSA-AES256-AES256-AES256-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA: ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA256:AES128-SHA256:AES128-SHA256:AES128-SHA:AES128-SHA:AES128-SHA:AES128-SHA256:AES128-SHA:AES128-SHA256:AES128-SHA256:AES128-SHA256:AES128-SHA256:AES128-SHA256:AES128-SHA256:AES128-SHA:AES128-SHA:AES128-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES128-SHA256:AES128-SHA256:AES128-SHA-SHA:AES128-SHA-SHA:AES128-GCM-SHA256:AES128-GCM-GCM:AES128-SHA-SHA:AES128-SHA-SHA:AES128-GCM-GCM:AES128-GCM- -
규칙:
no-sslv3 no-tls-tickets
다음 콘텐츠로 hieradata 덮어쓰기 파일(haproxy-hiera-overrides.yaml)을 생성합니다.
tripleo::haproxy::ssl_cipher_suite: ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS tripleo::haproxy::ssl_options: no-sslv3 no-tls-tickets
tripleo::haproxy::ssl_cipher_suite: ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS
tripleo::haproxy::ssl_options: no-sslv3 no-tls-tickets참고
암호화 방식 컬렉션은 연속된 한 행으로 되어 있습니다.
openstack undercloud install을 실행하기 전에 생성한 hieradata 재정의 파일을 사용하도록 undercloud.conf 파일의 hieradata_override 매개변수를 설정합니다.
[DEFAULT] ... hieradata_override = haproxy-hiera-overrides.yaml ...
[DEFAULT]
...
hieradata_override = haproxy-hiera-overrides.yaml
...
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