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Re: ssh + kerberosV

To: OpenBSD Misc <misc@openbsd.org>
Subject: Re: ssh + kerberosV
From: Julien TOUCHE <julien.touche@lycos.com>
Date: Sat, 29 Nov 2003 17:14:16 +0100
References: <3FC85860.9030006@lycos.com> <1070095469.576.3.camel@monster.active2.homelinux.org> <3FC86976.9040407@lycos.com> <1070105486.576.23.camel@monster.active2.homelinux.org> <3FC88F27.7090907@lycos.com> <1070115188.6303.16.camel@monster.active2.homelinux.org> <3FC8B453.80807@lycos.com> <1070120217.6306.20.camel@monster.active2.homelinux.org>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5) Gecko/20031013 Thunderbird/0.3

Matthijs Mohlmann wrote:

> Your ssh daemon and client doesn't have kerberos support.
> 
> I've both enabled GSSAPIAuthentication and KerberosAuthentication.
> 
> your login.conf is ok but ssh doesn't use /bin/login so you need to
> enable gssapi support in ssh
> 
ok, done

# more log2
debug2: read_server_config: filename /etc/ssh/sshd_config
debug1: sshd version OpenSSH_3.7.1
debug3: Not a RSA1 key file /etc/ssh/ssh_host_rsa_key.
debug1: read PEM private key done: type RSA
debug1: private host key: #0 type 1 RSA
debug3: Not a RSA1 key file /etc/ssh/ssh_host_dsa_key.
debug1: read PEM private key done: type DSA
debug1: private host key: #1 type 2 DSA
debug1: Bind to port 22 on ::.
Server listening on :: port 22.
debug1: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
debug1: Server will not fork when running in debugging mode.
Connection from 192.168.2.5 port 24831
debug1: Client protocol version 2.0; client software version OpenSSH_3.7.1
debug1: match: OpenSSH_3.7.1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.7.1
debug2: Network child is on pid 12480
debug3: preauth child monitor started
debug3: mm_request_receive entering
debug3: privsep user:group 27:27
debug1: permanently_set_uid: 27/27
debug1: list_hostkey_types: ssh-rsa,ssh-dss
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: 
diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: 
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysat
or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: 
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysat
or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: 
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: 
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit: 
diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: 
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysat
or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: 
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysat
or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: 
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: 
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: mac_init: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 none
debug2: mac_init: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received
debug3: mm_request_send entering: type 0
debug3: monitor_read: checking request 0
debug3: mm_answer_moduli: got parameters: 1024 2048 8192
debug3: mm_choose_dh: waiting for MONITOR_ANS_MODULI
debug3: mm_request_receive_expect entering: type 1
debug3: mm_request_receive entering
debug3: mm_request_send entering: type 1
debug3: mm_choose_dh: remaining 0
debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent
debug2: monitor_read: 0 used once, disabling now
debug3: mm_request_receive entering
debug2: dh_gen_key: priv key bits set: 120/256
debug2: bits set: 1565/3191
debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT
debug2: bits set: 1633/3191
debug3: mm_key_sign entering
debug3: mm_request_send entering: type 4
debug3: monitor_read: checking request 4
debug3: mm_answer_sign
debug3: mm_answer_sign: signature 0x3c029200(143)
debug3: mm_request_send entering: type 5
debug2: monitor_read: 4 used once, disabling now
debug3: mm_request_receive entering
debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN
debug3: mm_request_receive_expect entering: type 5
debug3: mm_request_receive entering
debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: KEX done
debug1: userauth-request for user touche service ssh-connection method none
debug1: attempt 0 failures 0
debug3: mm_getpwnamallow entering
debug3: mm_request_send entering: type 6
debug3: monitor_read: checking request 6
debug3: mm_answer_pwnamallow
debug3: Trying to reverse map address 192.168.2.5.
debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1
debug3: mm_request_send entering: type 7
debug2: monitor_read: 6 used once, disabling now
debug3: mm_request_receive entering
debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM
debug3: mm_request_receive_expect entering: type 7
debug3: mm_request_receive entering
debug2: input_userauth_request: setting up authctxt for touche
debug3: mm_inform_authserv entering
debug3: mm_request_send entering: type 3
debug3: monitor_read: checking request 3
debug3: mm_answer_authserv: service=ssh-connection, style=
debug2: monitor_read: 3 used once, disabling now
debug3: mm_request_receive entering
debug2: input_userauth_request: try method none
debug3: mm_auth_password entering
debug3: mm_request_send entering: type 10
debug3: monitor_read: checking request 10
debug3: mm_answer_authpassword: sending result 0
debug3: mm_request_send entering: type 11
Failed none for touche from 192.168.2.5 port 24831 ssh2
debug3: mm_request_receive entering
debug3: mm_auth_password: waiting for MONITOR_ANS_AUTHPASSWORD
debug3: mm_request_receive_expect entering: type 11
debug3: mm_request_receive entering
debug3: mm_auth_password: user not authenticated
Failed none for touche from 192.168.2.5 port 24831 ssh2
debug1: userauth-request for user touche service ssh-connection method 
gssapi
debug1: attempt 1 failures 1
debug2: input_userauth_request: try method gssapi
debug3: mm_request_send entering: type 37
debug3: monitor_read: checking request 37
debug3: mm_request_send entering: type 38
debug3: mm_request_receive entering
debug3: mm_request_receive_expect entering: type 38
debug3: mm_request_receive entering
Postponed gssapi for touche from 192.168.2.5 port 24831 ssh2
debug3: mm_request_send entering: type 39
debug3: monitor_read: checking request 39
debug1:  Miscellaneous failure (see text)
Decrypt integrity check failed

debug1: Got no client credentials
debug3: mm_request_send entering: type 40
debug3: mm_request_receive entering
debug3: mm_request_receive_expect entering: type 40
debug3: mm_request_receive entering
Failed gssapi for touche from 192.168.2.5 port 24831 ssh2
debug1: userauth-request for user touche service ssh-connection method 
publickey
debug1: attempt 2 failures 2
debug2: input_userauth_request: try method publickey
debug1: test whether pkalg/pkblob are acceptable
debug3: mm_key_allowed entering
debug3: mm_request_send entering: type 20
debug3: monitor_read: checking request 20
debug3: mm_answer_keyallowed entering
debug3: mm_answer_keyallowed: key_from_blob: 0x3c01fa80
debug1: temporarily_use_uid: 1000/1000 (e=0/0)
debug1: trying public key file /home/touche/.ssh/authorized_keys
debug1: restore_uid: 0/0
debug1: temporarily_use_uid: 1000/1000 (e=0/0)
debug1: trying public key file /home/touche/.ssh/authorized_keys2
debug1: restore_uid: 0/0
debug3: mm_answer_keyallowed: key 0x3c01fa80 is disallowed
debug3: mm_request_send entering: type 21
debug3: mm_request_receive entering
debug3: mm_key_allowed: waiting for MONITOR_ANS_KEYALLOWED
debug3: mm_request_receive_expect entering: type 21
debug3: mm_request_receive entering
debug2: userauth_pubkey: authenticated 0 pkalg ssh-dss
Failed publickey for touche from 192.168.2.5 port 24831 ssh2
debug1: userauth-request for user touche service ssh-connection method 
keyboard-interactive
debug1: attempt 3 failures 3
debug2: input_userauth_request: try method keyboard-interactive
debug1: keyboard-interactive devs
debug1: auth2_challenge: user=touche devs=
debug1: kbdint_alloc: devices 'bsdauth'
debug2: auth2_challenge_start: devices bsdauth
debug2: kbdint_next_device: devices <empty>
debug1: auth2_challenge_start: trying authentication method 'bsdauth'
debug3: mm_bsdauth_query: entering
debug3: mm_request_send entering: type 12
debug3: monitor_read: checking request 12
debug2: bsdauth_query: new bsd auth session
debug3: bsdauth_query: style <default>
debug2: bsdauth_query: <empty>
debug3: mm_answer_bsdauthquery: sending challenge success: 0
debug3: mm_request_send entering: type 13
debug3: mm_request_receive entering
debug3: mm_request_receive_expect entering: type 13
debug3: mm_request_receive entering
debug3: mm_bsdauth_query: no challenge
Failed keyboard-interactive for touche from 192.168.2.5 port 24831 ssh2
Connection closed by 192.168.2.5
debug1: Calling cleanup 0x1c01edbc(0x0)

(other logs have not changed)

seems problems stay : "Decrypt integrity check failed"

seems strange also than heimdal log didn't give any failure info ?

Regards

		Julien

Follow-Ups:
- Re: ssh + kerberosV
  - From: Matthijs Mohlmann <matthijs@active2.homelinux.org>

References:
- ssh + kerberosV
  - From: Julien TOUCHE <julien.touche@lycos.com>
- Re: ssh + kerberosV
  - From: Matthijs Mohlmann <matthijs@active2.homelinux.org>
- Re: ssh + kerberosV
  - From: Julien TOUCHE <julien.touche@lycos.com>
- Re: ssh + kerberosV
  - From: Matthijs Mohlmann <matthijs@active2.homelinux.org>
- Re: ssh + kerberosV
  - From: Julien TOUCHE <julien.touche@lycos.com>
- Re: ssh + kerberosV
  - From: Matthijs Mohlmann <matthijs@active2.homelinux.org>
- Re: ssh + kerberosV
  - From: Julien TOUCHE <julien.touche@lycos.com>
- Re: ssh + kerberosV
  - From: Matthijs Mohlmann <matthijs@active2.homelinux.org>

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