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TLSv1 connection fails after ONTAP upgrade

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ontap-9
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Applies to

ONTAP 9

Issue

  • TLSv1 connection fails after ONTAP upgrades (9.5 → 9.11).
    • Issued ONTAP system:

      openssl s_client -connect <mgmt LIF IP>:443 -tls1 command on client fails:

      　　---------------------------
      　　[root@localhost ~]# openssl s_client -connect 192.168.33.22:443 -tls1
       
      　　CONNECTED(00000003)　
      　  140124771491111:error:1401111E:SSL routines:ssl3_read_bytes:tlsv1 alert protocol version:s3_pkt.c:1487:SSL alert number 70
      　　140124771491111:error:111110E5:SSL routines:ssl3_write_bytes:ssl handshake failure:s3_pkt.c:656:
      　　---
      　　no peer certificate available
      　　---
      　　......
      　　New, (NONE), Cipher is (NONE)　
      　　---------------------------
    • Normal ONTAP system:

openssl s_client -connect <mgmt LIF IP>:443 -tls1 command on client succeeds:

　　---------------------------
　　[root@localhost ~]#openssl s_client -connect 192.168.44.55:443 -tls1
　　CONNECTED(00000003)
　　depth=0 CN = cluster1, C = US
　　verify error:num=18:self signed certificate
　　verify return:1
　　depth=0 CN = cluster1, C = US
　　......
　　Server Temp Key: ECDH, P-256, 256 bits
　　---
　　SSL handshake has read 1545 bytes and written 333 bytes
　　---
　　New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-SHA　　
　　Server public key is 2048 bit
　　Secure Renegotiation IS supported
　　---------------------------
  • security congfig show command output of the issued ONTAP is the same as normal ONTAP.

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