On su, 06 syys 2020, Jochen Kellner via FreeIPA-users wrote:
Hello, I'm running IPA on current Fedora 32, freeipa-server-4.8.9-2 and pki-server-10.9.0-0.4 Today the certificate of my IMAP server (running on Debian Buster) was automatically refreshed: ,---- | Request ID '20181003215953': | status: MONITORING | stuck: no | key pair storage: type=FILE,location='/etc/ssl/private/imap.jochen.org.key' | certificate: type=FILE,location='/etc/ssl/certs/imap.jochen.org.crt' | CA: IPA | issuer: CN=Certificate Authority,O=JOCHEN.ORG | subject: CN=imap.jochen.org,O=JOCHEN.ORG | expires: 2022-09-07 09:30:16 CEST | dns: imap.jochen.org | principal name: imap/jupiter.jochen....@jochen.org | key usage: digitalSignature,nonRepudiation,keyEncipherment,dataEncipherment | eku: id-kp-serverAuth,id-kp-clientAuth | pre-save command: | post-save command: /root/refresh_cyrus_certificate.sh | track: yes | auto-renew: yes `---- On an iPhone one of my users gets a message that the certificate is not valid. Reason seems to be this: https://7402.org/blog/2019/new-self-signed-ssl-cert-ios-13.html When I look at the certificate with openssl I see: ,---- | X509v3 extensions: | X509v3 Authority Key Identifier: | keyid:4F:F8:45:3D:E8:06:4B:8D:BB:9D:D2:D1:8B:00:43:A1:07:16:A1:17 | | Authority Information Access: | OCSP - URI:http://ipa-ca.jochen.org/ca/ocsp | | X509v3 Key Usage: critical | Digital Signature, Non Repudiation, Key Encipherment, Data Encipherment | X509v3 Extended Key Usage: | TLS Web Server Authentication, TLS Web Client Authentication `---- My current guess is that the "Key Usage: critical" is the reason for the iOS error.
I don't think so. Official Apple requirements state the following: https://support.apple.com/en-us/HT210176 --------------------------------------------------- All TLS server certificates must comply with these new security requirements in iOS 13 and macOS 10.15: - TLS server certificates and issuing CAs using RSA keys must use key sizes greater than or equal to 2048 bits. Certificates using RSA key sizes smaller than 2048 bits are no longer trusted for TLS. - TLS server certificates and issuing CAs must use a hash algorithm from the SHA-2 family in the signature algorithm. SHA-1 signed certificates are no longer trusted for TLS. - TLS server certificates must present the DNS name of the server in the Subject Alternative Name extension of the certificate. DNS names in the CommonName of a certificate are no longer trusted. Additionally, all TLS server certificates issued after July 1, 2019 (as indicated in the NotBefore field of the certificate) must follow these guidelines: - TLS server certificates must contain an ExtendedKeyUsage (EKU) extension containing the id-kp-serverAuth OID. - TLS server certificates must have a validity period of 825 days or fewer (as expressed in the NotBefore and NotAfter fields of the certificate). -------------------------------------------------- Can you please show both your CA and the IMAP server public certificates in their entirety? -- / Alexander Bokovoy Sr. Principal Software Engineer Security / Identity Management Engineering Red Hat Limited, Finland _______________________________________________ FreeIPA-users mailing list -- freeipa-users@lists.fedorahosted.org To unsubscribe send an email to freeipa-users-le...@lists.fedorahosted.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedorahosted.org/archives/list/freeipa-users@lists.fedorahosted.org
