Bugzilla – Attachment 3352 Details for
Bug 3113
StrictHostKeyChecking=no works with changed 1024 bit RSA hostkeys but fails when 2048 RSA
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SSH debug connection output as requested
ssh_vvv.log (text/plain), 9.18 KB, created by
Andy Hart
on 2020-01-28 02:29:18 AEDT
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Description:
SSH debug connection output as requested
Filename:
MIME Type:
Creator:
Andy Hart
Created:
2020-01-28 02:29:18 AEDT
Size:
9.18 KB
patch
obsolete
>OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n 7 Dec 2017 >debug1: Reading configuration data /root/.ssh/config >debug1: Reading configuration data /etc/ssh/ssh_config >debug1: /etc/ssh/ssh_config line 19: Applying options for * >debug2: resolving "172.16.0.5" port 22 >debug2: ssh_connect_direct: needpriv 0 >debug1: Connecting to 172.16.0.5 [172.16.0.5] port 22. >debug1: Connection established. >debug1: permanently_set_uid: 0/0 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_rsa type -1 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_rsa-cert type -1 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_dsa type -1 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_dsa-cert type -1 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_ecdsa type -1 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_ecdsa-cert type -1 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_ed25519 type -1 >debug1: key_load_public: No such file or directory >debug1: identity file /root/.ssh/id_ed25519-cert type -1 >debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3 >debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4 >debug1: match: OpenSSH_7.4 pat OpenSSH* compat 0x04000000 >debug2: fd 3 setting O_NONBLOCK >debug1: Authenticating to 172.16.0.5:22 as 'root' >debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts" >debug3: record_hostkey: found key type RSA in file /root/.ssh/known_hosts:1 >debug3: load_hostkeys: loaded 1 keys from 172.16.0.5 >debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa >debug3: send packet: type 20 >debug1: SSH2_MSG_KEXINIT sent >debug3: receive packet: type 20 >debug1: SSH2_MSG_KEXINIT received >debug2: local client KEXINIT proposal >debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c >debug2: host key algorithms: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519 >debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com >debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com >debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 >debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 >debug2: compression ctos: none,zlib@openssh.com,zlib >debug2: compression stoc: none,zlib@openssh.com,zlib >debug2: languages ctos: >debug2: languages stoc: >debug2: first_kex_follows 0 >debug2: reserved 0 >debug2: peer server KEXINIT proposal >debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 >debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256 >debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc >debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc >debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 >debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 >debug2: compression ctos: none,zlib@openssh.com >debug2: compression stoc: none,zlib@openssh.com >debug2: languages ctos: >debug2: languages stoc: >debug2: first_kex_follows 0 >debug2: reserved 0 >debug1: kex: algorithm: curve25519-sha256 >debug1: kex: host key algorithm: rsa-sha2-512 >debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none >debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none >debug3: send packet: type 30 >debug1: expecting SSH2_MSG_KEX_ECDH_REPLY >debug3: receive packet: type 31 >debug1: Server host key: ssh-rsa SHA256:P2yxDZhloV1EymM/eY1x9CgWBP1bSLBbCo4KccH1xU4 >debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts" >debug3: record_hostkey: found key type RSA in file /root/.ssh/known_hosts:1 >debug3: load_hostkeys: loaded 1 keys from 172.16.0.5 >@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ >@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ >@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ >IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! >Someone could be eavesdropping on you right now (man-in-the-middle attack)! >It is also possible that a host key has just been changed. >The fingerprint for the RSA key sent by the remote host is >SHA256:P2yxDZhloV1EymM/eY1x9CgWBP1bSLBbCo4KccH1xU4. >Please contact your system administrator. >Add correct host key in /root/.ssh/known_hosts to get rid of this message. >Offending RSA key in /root/.ssh/known_hosts:1 > remove with: > ssh-keygen -f "/root/.ssh/known_hosts" -R "172.16.0.5" >Password authentication is disabled to avoid man-in-the-middle attacks. >Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks. >debug3: send packet: type 21 >debug2: set_newkeys: mode 1 >debug1: rekey after 134217728 blocks >debug1: SSH2_MSG_NEWKEYS sent >debug1: expecting SSH2_MSG_NEWKEYS >debug3: receive packet: type 21 >debug1: SSH2_MSG_NEWKEYS received >debug2: set_newkeys: mode 0 >debug1: rekey after 134217728 blocks >debug2: key: /root/.ssh/id_rsa ((nil)) >debug2: key: /root/.ssh/id_dsa ((nil)) >debug2: key: /root/.ssh/id_ecdsa ((nil)) >debug2: key: /root/.ssh/id_ed25519 ((nil)) >debug3: send packet: type 5 >debug3: receive packet: type 7 >debug1: SSH2_MSG_EXT_INFO received >debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512> >debug3: receive packet: type 6 >debug2: service_accept: ssh-userauth >debug1: SSH2_MSG_SERVICE_ACCEPT received >debug3: send packet: type 50 >debug3: receive packet: type 51 >debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password >debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password >debug3: preferred gssapi-keyex,gssapi-with-mic,publickey >debug3: authmethod_lookup gssapi-keyex >debug3: remaining preferred: gssapi-with-mic,publickey >debug3: authmethod_is_enabled gssapi-keyex >debug1: Next authentication method: gssapi-keyex >debug1: No valid Key exchange context >debug2: we did not send a packet, disable method >debug3: authmethod_lookup gssapi-with-mic >debug3: remaining preferred: publickey >debug3: authmethod_is_enabled gssapi-with-mic >debug1: Next authentication method: gssapi-with-mic >debug1: Unspecified GSS failure. Minor code may provide more information >No Kerberos credentials available (default cache: FILE:/tmp/krb5cc_0) > >debug1: Unspecified GSS failure. Minor code may provide more information >No Kerberos credentials available (default cache: FILE:/tmp/krb5cc_0) > >debug2: we did not send a packet, disable method >debug3: authmethod_lookup publickey >debug3: remaining preferred: >debug3: authmethod_is_enabled publickey >debug1: Next authentication method: publickey >debug1: Trying private key: /root/.ssh/id_rsa >debug3: no such identity: /root/.ssh/id_rsa: No such file or directory >debug1: Trying private key: /root/.ssh/id_dsa >debug3: no such identity: /root/.ssh/id_dsa: No such file or directory >debug1: Trying private key: /root/.ssh/id_ecdsa >debug3: no such identity: /root/.ssh/id_ecdsa: No such file or directory >debug1: Trying private key: /root/.ssh/id_ed25519 >debug3: no such identity: /root/.ssh/id_ed25519: No such file or directory >debug2: we did not send a packet, disable method >debug1: No more authentication methods to try. >root@172.16.0.5: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
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bug 3113
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