svn commit: r247485 - in stable/9: crypto/openssh crypto/openssh/openbsd-compat secure/lib/libssh secure/usr.sbin/sshd

Mike Tancsa mike at sentex.net
Wed May 29 13:30:05 UTC 2013 

On 3/1/2013 11:35 AM, Mike Tancsa wrote:
> On 2/28/2013 1:43 PM, Dag-Erling Smørgrav wrote:
>> Author: des
>> Date: Thu Feb 28 18:43:50 2013
>> New Revision: 247485
>> URL: http://svnweb.freebsd.org/changeset/base/247485
>>
>> Log:
>>   Pull in OpenSSH 6.1 from head.
> 
> Hi,
> 	I updated a box to RELENG_9 with this change, and I can no longer ssh
> from my secure crt client. I have a stock sshd_config, but when I connect,
> 
> cipher_init: EVP_CipherInit: set key failed for aes128-cbc [preauth]


For the archives, this is fixed in

http://lists.freebsd.org/pipermail/svn-src-head/2013-May/047921.html

It can be worked around by setting

UsePrivilegeSeparation yes

in /etc/ssh/sshd_config

The default behind the scenes was changed to

UsePrivilegeSeparation sandbox

See the above thread for more information.

	---Mike




> 
> Starting the daemon in debug mode below. If I change the first cipher
> offered to blowfish, it works.
> 
>  /usr/sbin/sshd -ddd
> debug2: load_server_config: filename /etc/ssh/sshd_config
> debug2: load_server_config: done config len = 219
> debug2: parse_server_config: config /etc/ssh/sshd_config len 219
> debug3: /etc/ssh/sshd_config:54 setting AuthorizedKeysFile
> .ssh/authorized_keys
> debug3: /etc/ssh/sshd_config:122 setting Subsystem sftp
> /usr/libexec/sftp-server
> debug1: HPN Buffer Size: 131072
> debug1: sshd version OpenSSH_6.1p1_hpn13v11 FreeBSD-20120901
> debug3: Incorrect RSA1 identifier
> debug1: read PEM private key done: type RSA
> debug1: private host key: #0 type 1 RSA
> debug3: Incorrect RSA1 identifier
> debug1: read PEM private key done: type DSA
> debug1: private host key: #1 type 2 DSA
> debug3: Incorrect RSA1 identifier
> debug1: read PEM private key done: type ECDSA
> debug1: private host key: #2 type 3 ECDSA
> debug1: rexec_argv[0]='/usr/sbin/sshd'
> debug1: rexec_argv[1]='-ddd'
> debug2: fd 4 setting O_NONBLOCK
> debug3: ssh_sock_set_v6only: set socket 4 IPV6_V6ONLY
> debug1: Bind to port 22 on ::.
> debug1: Server TCP RWIN socket size: 131072
> debug1: HPN Buffer Size: 131072
> Server listening on :: port 22.
> debug2: fd 5 setting O_NONBLOCK
> debug1: Bind to port 22 on 0.0.0.0.
> debug1: Server TCP RWIN socket size: 131072
> debug1: HPN Buffer Size: 131072
> Server listening on 0.0.0.0 port 22.
> debug1: fd 6 clearing O_NONBLOCK
> debug1: Server will not fork when running in debugging mode.
> debug3: send_rexec_state: entering fd = 9 config len 219
> debug3: ssh_msg_send: type 0
> debug3: send_rexec_state: done
> debug1: rexec start in 6 out 6 newsock 6 pipe -1 sock 9
> debug1: inetd sockets after dupping: 4, 4
> debug1: res_init()
> Connection from 2607:f3e0:0:4:f025:8813:7603:7e4a port 52567
> debug1: HPN Disabled: 0, HPN Buffer Size: 131072
> debug1: Client protocol version 2.0; client software version
> SecureCRT_6.6.1 (x64 build 289) SecureCRT
> debug1: no match: SecureCRT_6.6.1 (x64 build 289) SecureCRT
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_6.1_hpn13v11 FreeBSD-20120901
> debug2: fd 4 setting O_NONBLOCK
> debug3: ssh_sandbox_init: preparing rlimit sandbox
> debug2: Network child is on pid 2667
> debug3: preauth child monitor started
> debug3: privsep user:group 22:22 [preauth]
> debug1: permanently_set_uid: 22/22 [preauth]
> debug1: list_hostkey_types: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256 [preauth]
> debug1: SSH2_MSG_KEXINIT sent [preauth]
> debug1: SSH2_MSG_KEXINIT received [preauth]
> debug2: kex_parse_kexinit:
> ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
> [preauth]
> debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256 [preauth]
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
> [preauth]
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
> [preauth]
> debug2: kex_parse_kexinit:
> hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
> [preauth]
> debug2: kex_parse_kexinit:
> hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
> [preauth]
> debug2: kex_parse_kexinit: none,zlib at openssh.com [preauth]
> debug2: kex_parse_kexinit: none,zlib at openssh.com [preauth]
> debug2: kex_parse_kexinit:  [preauth]
> debug2: kex_parse_kexinit:  [preauth]
> debug2: kex_parse_kexinit: first_kex_follows 0  [preauth]
> debug2: kex_parse_kexinit: reserved 0  [preauth]
> debug2: kex_parse_kexinit:
> diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
> [preauth]
> debug2: kex_parse_kexinit:
> ssh-dss,ssh-rsa,x509v3-sign-rsa,x509v3-sign-dss [preauth]
> debug2: kex_parse_kexinit:
> aes128-cbc,aes256-cbc,aes256-ctr,aes192-ctr,aes128-ctr,aes192-cbc,twofish-cbc,blowfish-cbc,3des-cbc,arcfour
> [preauth]
> debug2: kex_parse_kexinit:
> aes128-cbc,aes256-cbc,aes256-ctr,aes192-ctr,aes128-ctr,aes192-cbc,twofish-cbc,blowfish-cbc,3des-cbc,arcfour
> [preauth]
> debug2: kex_parse_kexinit:
> hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,umac-64 at openssh.com [preauth]
> debug2: kex_parse_kexinit:
> hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,umac-64 at openssh.com [preauth]
> debug2: kex_parse_kexinit: none [preauth]
> debug2: kex_parse_kexinit: none [preauth]
> debug2: kex_parse_kexinit:  [preauth]
> debug2: kex_parse_kexinit:  [preauth]
> debug2: kex_parse_kexinit: first_kex_follows 0  [preauth]
> debug2: kex_parse_kexinit: reserved 0  [preauth]
> debug2: mac_setup: found hmac-sha1 [preauth]
> debug1: kex: client->server aes128-cbc hmac-sha1 none [preauth]
> debug2: mac_setup: found hmac-sha1 [preauth]
> debug1: kex: server->client aes128-cbc hmac-sha1 none [preauth]
> debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received [preauth]
> debug3: mm_request_send entering: type 0 [preauth]
> debug3: mm_choose_dh: waiting for MONITOR_ANS_MODULI [preauth]
> debug3: mm_request_receive_expect entering: type 1 [preauth]
> debug3: mm_request_receive entering [preauth]
> debug3: mm_request_receive entering
> debug3: monitor_read: checking request 0
> debug3: mm_answer_moduli: got parameters: 1024 2048 2048
> debug3: mm_request_send entering: type 1
> debug2: monitor_read: 0 used once, disabling now
> debug3: mm_choose_dh: remaining 0 [preauth]
> debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent [preauth]
> debug2: dh_gen_key: priv key bits set: 181/320 [preauth]
> debug2: bits set: 1008/2048 [preauth]
> debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT [preauth]
> debug2: bits set: 1009/2048 [preauth]
> debug3: mm_key_sign entering [preauth]
> debug3: mm_request_send entering: type 4 [preauth]
> debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN [preauth]
> debug3: mm_request_receive_expect entering: type 5 [preauth]
> debug3: mm_request_receive entering [preauth]
> debug3: mm_request_receive entering
> debug3: monitor_read: checking request 4
> debug3: mm_answer_sign
> debug3: mm_answer_sign: signature 0x803017180(55)
> debug3: mm_request_send entering: type 5
> debug2: monitor_read: 4 used once, disabling now
> debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent [preauth]
> debug2: kex_derive_keys [preauth]
> debug2: set_newkeys: mode 1 [preauth]
> cipher_init: EVP_CipherInit: set key failed for aes128-cbc [preauth]
> debug1: do_cleanup [preauth]
> debug3: PAM: sshpam_thread_cleanup entering [preauth]
> debug3: mm_request_receive entering
> debug1: do_cleanup
> debug3: PAM: sshpam_thread_cleanup entering
> debug1: Killing privsep child 2667
> 
> 


-- 
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike at sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/

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