search for: packet_send2

...ngth byte padding_length byte[n1] payload; n1 = packet_length - padding_length - 1 byte[n2] random padding; n2 = padding_length byte[m] mac (message authentication code); m = mac_length However, since i wanted to verify this, I put some debugging code in openssh-3.51p1/packet.c (function packet_send2()), which can be accessed at http://mia.ece.uic.edu/cgi-bin/lxr/http/source/packet.c?v=openssh-3.5p1#L619. I conducted some tests by sending PPP packets and found out that the tranport layer (i think) just appends an extra 14 bytes to the begining of the PPP frame. The first 4 bytes of these ar...

...the password dialog shoes up I wait a min or so, long enough for the "Timeout before authentication for %s" alarm to trigger. If at that point I enter my password ssh will just sit there: debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 1 Password: debug3: packet_send2: adding 32 (len 18 padlen 14 extra_pad 64) And the sshd will be in this state: Attaching to program: `/private/tmp/OpenSSH.roots/OpenSSH~obj/sshd', process 26589. Reading symbols for shared libraries ...................... done 0x9002cf88 in semaphore_wait_trap () (gdb) bt #0 0x9002cf88 in...

...F-8 encoding string language tag as defined in [RFC3066] ... </snip> I tested with the OpenBSD ssh client and portable ssh in cygwin. It specifically doesn't send the language tag. Here is the tail of ssh -vvv, <snip> debug1: Next authentication method: password debug3: packet_send2: adding 64 (len 58 padlen 6 extra_pad 64) debug2: we sent a password packet, wait for reply debug2: input_userauth_passwd_changereq buffer_get: trying to get more bytes 4 than in buffer 0 </snip> I stepped through in the debugger to see that I do get the password change prompt and then we ba...

...tive debug3: userauth_kbdint: disable: no info_req_seen debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: debug3: authmethod_is_enabled password debug1: next auth method to try is password root at 192.168.100.1's password: debug1: packet_send2: adding 48 (len 61 padlen 19 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: authentications that can continue: publickey,password,keyboard-interactive Permission denied, please try again. root at 192.168.100.1's password: debug1: packet_send2: adding 48 (len 61 padlen...

...password debug3: authmethod_is_enabled keyboard-interactive debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug2: we sent a keyboard-interactive packet, wait for reply debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 1 Password: debug3: packet_send2: adding 32 (len 22 padlen 10 extra_pad 64) debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 0 debug3: packet_send2: adding 48 (len 10 padlen 6 extra_pad 64) debug1: Authentication succeeded (keyboard-interactive). debug2: fd 4 setting O_NONBLOCK debug3: fd 5 is O_NONBLOC...

...sftp sam at localhost Connecting to localhost... sam at localhost's password: Couldn't read packet: Connection reset by peer -- If I remove sam from the users group, he can SFTP fine, but isn't chrooted. Using -vvv, I get the following: ----- sam at localhost's password: debug3: packet_send2: adding 64 (len 56 padlen 8 extra_pad 64) debug2: we sent a password packet, wait for reply debug3: Wrote 144 bytes for a total of 1639 debug1: Authentication succeeded (password). debug2: fd 4 setting O_NONBLOCK debug3: fd 5 is O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session...

I am trying to do some analysis and modification on the cipher text in per packet increments. Having a bit of trouble getting the cipher text per packet. I believe I am getting the correct sent cipher text (from inside packet_send2 - compared it to a packet capture to be sure) but not certain about getting the recieving stream of cipher text. I have, of coarse, determined that packet_read_poll2 is where I need to look. The problem lies in that packets seem to be continiously coming in and being constructed (of coarse) and f...

...so? Debug traces: sshd: debug2: load_server_config: filename /opt/ssh/etc/sshd_config debug2: load_server_config: done config len = 331 debug2: parse_server_config: config /opt/ssh/etc/sshd_config len 331 ssh: debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 0 debug3: packet_send2: adding 48 (len 10 padlen 6 extra_pad 64) debug1: Authentication succeeded (keyboard-interactive). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 -- Michael

...p password debug3: remaining preferred: ,keyboard-interactive,password debug3: authmethod_is_enabled password debug1: Next authentication method: password admin at router's password: ^ The password prompt works fine and blocks wrong passwords properly. This is a failed connection -> debug3: packet_send2: adding 56 (len 61 padlen 11 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). debug2: fd 5 setting O_NONBLOCK debug3: fd 6 is O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: s...

...ccounts on the machine, that do not use chroot, using SFTP and SSH. I guess for an interactive SSH session I may be missing some required system files inside the jail- but I really only need SFTP for this account. Thanks Simon The last ouput from the ssh -vvv command is below:- debug3: packet_send2: adding 48 (len 63 padlen 17 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. debug2: call...

...g3: userauth_kbdint: disable: no info_req_seen debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: debug3: authmethod_is_enabled password debug1: next auth method to try is password mkhurana at unix1.andrew.cmu.edu's password: debug1: packet_send2: adding 48 (len 62 padlen 18 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: ssh-userauth2 successful: method password debug3: clear hostkey 0 debug3: clear hostkey 1 debug3: clear hostkey 2 debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 de...

...password debug3: authmethod_is_enabled keyboard-interactive debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug2: we sent a keyboard-interactive packet, wait for reply debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 1 Password: debug3: packet_send2: adding 32 (len 24 padlen 8 extra_pad 64) debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 0 debug3: packet_send2: adding 48 (len 10 padlen 6 extra_pad 64) debug1: Authentication succeeded (keyboard-interactive). debug1: channel 0: new [client-session] debug3: ssh_sessio...

...ractive debug3: userauth_kbdint: disable: no info_req_seen debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: debug3: authmethod_is_enabled password debug1: Next authentication method: password amandabackup at lb1's password: debug3: packet_send2: adding 48 (len 67 padlen 13 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). Authenticated to lb1 ([192.168.1.23]:22). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1:...

Hello I think I've found a bug but since no one replied to me on comp.security.ssh, I'll try my luck here. On my client, PreferredAuthentications is set to publickey,password. When using the commands option in authorized_keys file like command="ls" ssh-dss <key>... it is supposed to connect using the private key associated with <key>, perform ls and then quits.

...ns that can continue: publickey,password,keyboard-interactive debug1: next auth method to try is keyboard-interactive debug1: authentications that can continue: publickey,password,keyboard-interactive debug1: next auth method to try is password ballen at dirac.phys.uwm.edu's password: debug1: packet_send2: adding 64 (len 60 padlen 4 extra_pad 64) debug1: ssh-userauth2 successful: method password debug1: channel 0: new [client-session] debug1: send channel open 0 debug1: Entering interactive session. debug1: ssh_session2_setup: id 0 debug1: channel request 0: pty-req debug1: Requesting X11 forwarding...

We installed openssh 3.1p1 on our Solaris 2.8 machine using gcc 2.95.2. During the installation, we modified ssh_config and sshd_config to enable X11 and agent forwarding. In sshd_config, we changed the following line to read: X11Forwarding yes In ssh_config, we changed the following two lines to read: ForwardAgent yes ForwardX11 yes Both files are set to permission readable

...word,keyboard-interactive debug1: next auth method to try is publickey debug1: try pubkey: /home/art/.ssh/id_rsa debug1: authentications that can continue: publickey,password,keyboard-interactive debug1: next auth method to try is keyboard-interactive otp-md5 391 bu2613 ext S/Key Password: debug1: packet_send2: adding 32 (len 14 padlen 18 extra_pad 64) Connection closed by se.rv.er.ip debug1: Calling cleanup 0x1b7e0(0x0) $ Script done on Wed Dec 19 11:38:08 2001 -------------- next part -------------- Script started on Wed Dec 19 11:40:22 2001 [greg at bum tmp]$ sudo /usr/sbin/sshd -ddd -p 2222 debug1:...

...board-interactive debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug2: we sent a keyboard-interactive packet, wait for reply debug3: Received SSH2_MSG_IGNORE debug2: input_userauth_info_req PAM Authentication debug2: input_userauth_info_req: num_prompts 1 debug3: packet_send2: adding 32 (len 26 padlen 6 extra_pad 64) debug3: Received SSH2_MSG_IGNORE Authenticated with partial success. debug1: Authentications that can continue: password,publickey debug3: start over, passed a different list password,publickey debug3: preferred publickey,keyboard-interactive,password debug...

...packet, wait for reply debug1: Authentications that can continue: publickey,password debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: ,password debug3: authmethod_is_enabled password debug1: Next authentication method: password debug3: packet_send2: adding 64 (len 60 padlen 4 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). debug2: fd 5 setting O_NONBLOCK debug2: fd 6 setting O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel...

...-interactive debug3: userauth_kbdint: disable: no info_req_seen debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: debug3: authmethod_is_enabled password debug1: next auth method to try is password steve at bgvx10's password: debug3: packet_send2: adding 64 (len 58 padlen 6 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: ssh-userauth2 successful: method password debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug1: send channel open 0 debug1: Entering interactive session. debug2: c...