Ssl2 + ssl3 disable: Unterschied zwischen den Versionen

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(Die Seite wurde neu angelegt: „=Apache2 SSLv3 deactivate= *cat /etc/apache2/httpd.conf SSLProtocol ALL -SSLv2 -SSLv3 =Dovecot SSLv3 deactivate= *cat /etc/dovecot/conf.d/10-ssl.conf ssl_p…“)
 
Zeile 11: Zeile 11:
 
  smtp_tls_protocols = !SSLv2, !SSLv3
 
  smtp_tls_protocols = !SSLv2, !SSLv3
 
  smtpd_tls_protocols = !SSLv2 !SSLv3
 
  smtpd_tls_protocols = !SSLv2 !SSLv3
 +
=Tests=
 +
==Apache2==
 +
*openssl s_client -ssl3 -connect www.example.com:443
 +
==Dovecot==
 +
*openssl s_client -ssl3 -connect www.example.com:993
 +
==Postfix==
 +
smtps
 +
*openssl s_client -ssl3 -connect www.example.com:465
 +
or
 +
submission
 +
*openssl s_client -ssl3 -connect www.example.com:587
  
 
=Source=
 
=Source=
 
*https://www.heinlein-support.de/blog/security/deaktivieren-sie-sslv3-apachepostfixdovecot-poodle-bug/
 
*https://www.heinlein-support.de/blog/security/deaktivieren-sie-sslv3-apachepostfixdovecot-poodle-bug/

Version vom 5. November 2018, 13:56 Uhr

Apache2 SSLv3 deactivate

  • cat /etc/apache2/httpd.conf
SSLProtocol ALL -SSLv2 -SSLv3

Dovecot SSLv3 deactivate

  • cat /etc/dovecot/conf.d/10-ssl.conf
ssl_protocols = !SSLv2 !SSLv3

Postfix SSLv3 deactivate

  • cat /etc/postfix/main.cf
smtpd_tls_mandatory_protocols = !SSLv2 !SSLv3
smtp_tls_mandatory_protocols = !SSLv2 !SSLv3
smtp_tls_protocols = !SSLv2, !SSLv3
smtpd_tls_protocols = !SSLv2 !SSLv3

Tests

Apache2

  • openssl s_client -ssl3 -connect www.example.com:443

Dovecot

  • openssl s_client -ssl3 -connect www.example.com:993

Postfix

smtps
  • openssl s_client -ssl3 -connect www.example.com:465

or

submission
  • openssl s_client -ssl3 -connect www.example.com:587

Source