[Bug 2727] ssh_dispatch_run_fatal: Connection to 127.0.0.1 port 8002: message authentication code incorrect

Wed Jun 14 07:57:58 AEST 2017

https://bugzilla.mindrot.org/show_bug.cgi?id=2727

--- Comment #8 from Sarthak Chokshi <chokshi.sarthak at gmail.com> ---
Apologize as it too some time to collect logs. Please find it below.
SSH Logs:
OpenSSH_7.5p1, OpenSSL 1.0.2l  25 May 2017
debug1: Reading configuration data
/home/spyware/code/firmware/current/etc/ssh/ssh_config
debug2: resolving "127.0.0.1" port 8002
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 127.0.0.1 [127.0.0.1] port 8002.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /home/cluster/.ssh/identity type 2
debug1: key_load_public: No such file or directory
debug1: identity file /home/cluster/.ssh/identity-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.5
debug1: Remote protocol version 2.0, remote software version Barracuda
debug1: no match: Barracuda
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 127.0.0.1:8002 as 'cluster'
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
Bad packet length 1835101741.

Sshd logs:

debug1: Bind to port 8002 on 127.0.0.1.
Server listening on 127.0.0.1 port 8002.
debug3: fd 4 is not O_NONBLOCK
debug1: Server will not fork when running in debugging mode.
debug3: send_rexec_state: entering fd = 7 config len 209
debug3: ssh_msg_send: type 0
debug3: send_rexec_state: done
debug1: rexec start in 4 out 4 newsock 4 pipe -1 sock 7
debug1: inetd sockets after dupping: 3, 3
Connection from 127.0.0.1 port 45473 on 127.0.0.1 port 8002
debug1: Client protocol version 2.0; client software version
OpenSSH_7.5
debug1: match: OpenSSH_7.5 pat OpenSSH* compat 0x04000000
debug1: Local version string BCP-2.0-Barracuda
debug1: Enabling compatibility mode for protocol 2.0
debug2: fd 3 setting O_NONBLOCK
debug3: ssh_sandbox_init: preparing rlimit sandbox
debug2: Network child is on pid 10214
debug3: preauth child monitor started
debug3: privsep user:group 71:71 [preauth]
debug1: permanently_set_uid: 71/71 [preauth]
debug3: list_hostkey_types: ssh-dss key not permitted by
HostkeyAlgorithms [preauth]
debug1: list_hostkey_types:
ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
[preauth]
debug3: send packet: type 20 [preauth]
debug1: SSH2_MSG_KEXINIT sent [preauth]
debug3: receive packet: type 20 [preauth]
debug1: SSH2_MSG_KEXINIT received [preauth]
debug2: local server KEXINIT proposal [preauth]
debug2: KEX algorithms:
curve25519-sha256,curve25519-sha256 at 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-group14-sha256,diffie-hellman-group14-sha1
[preauth]
debug2: host key algorithms:
ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
[preauth]
debug2: ciphers ctos:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com
[preauth]
debug2: ciphers stoc:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com
[preauth]
debug2: MACs ctos:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
[preauth]
debug2: MACs stoc:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
[preauth]
debug2: compression ctos: none,zlib at openssh.com [preauth]
debug2: compression stoc: none,zlib at openssh.com [preauth]
debug2: languages ctos:  [preauth]
debug2: languages stoc:  [preauth]
debug2: first_kex_follows 0  [preauth]
debug2: reserved 0  [preauth]
debug2: peer client KEXINIT proposal [preauth]
debug2: KEX algorithms:
curve25519-sha256,curve25519-sha256 at 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
[preauth]
debug2: host key algorithms:
ecdsa-sha2-nistp256-cert-v01 at openssh.com,ecdsa-sha2-nistp384-cert-v01 at openssh.com,ecdsa-sha2-nistp521-cert-v01 at openssh.com,ssh-ed25519-cert-v01 at openssh.com,ssh-rsa-cert-v01 at openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss
[preauth]
debug2: ciphers ctos:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
[preauth]
debug2: ciphers stoc:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
[preauth]
debug2: MACs ctos:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
[preauth]
debug2: MACs stoc:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
[preauth]
debug2: compression ctos: zlib at openssh.com,zlib,none [preauth]
debug2: compression stoc: zlib at openssh.com,zlib,none [preauth]
debug2: languages ctos:  [preauth]
debug2: languages stoc:  [preauth]
debug2: first_kex_follows 0  [preauth]
debug2: reserved 0  [preauth]
debug1: kex: algorithm: curve25519-sha256 [preauth]
debug1: kex: host key algorithm: ecdsa-sha2-nistp256 [preauth]
debug1: kex: client->server cipher: chacha20-poly1305 at openssh.com MAC:
<implicit> compression: zlib at openssh.com [preauth]
debug1: kex: server->client cipher: chacha20-poly1305 at openssh.com MAC:
<implicit> compression: zlib at openssh.com [preauth]
debug1: expecting SSH2_MSG_KEX_ECDH_INIT [preauth]
Connection closed by 127.0.0.1 port 45473 [preauth]
debug1: do_cleanup [preauth]
debug1: monitor_read_log: child log fd closed
debug3: mm_request_receive entering
debug1: do_cleanup
debug1: Killing privsep child 10214

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