Description of problem: SSH server generates misleading error message when using public key authentication and authorized_keys. In particular, the server logs the following error message 26 times in /var/log/secure: Authentication tried for root with correct key but not from a permitted host These messages are immediately followed by the following message: Accepted publickey for root from xx.xx.xx.xx port 39160 ssh2 The script that is specified in the "command" option in authorized_keys runs successfully. Note: We receive the "not from a permitted host" error even if there is no "from" option in authorized_keys. If we put in a "from" option (name, IP address, or both) we still receive the error messages. Version-Release number of selected component (if applicable): openssh-server-5.5p1-24.fc14.2.x86_64 How reproducible: Very Steps to Reproduce: 1. On client computer, generate keys: su cd ~root/.ssh ssh-keygen -t rsa -C crfile -f crfile 2. On server computer, copy crfile.pub from client computer to server computer. Append crfile.pub to ~root/.ssh/authorized_keys. Add the following option to the key in authorized_keys. command="/opt/test/crfile" 3. On server computer, create a file called /opt/test/crfile. The file contents should be: #! /bin/bash touch /opt/test/itworked Set ownership to root:root. Set permissions to 744. 4. On client computer, run the command: su ssh -T -i ~root/.ssh/crfile <servername> Actual results: 1. The script /opt/test/crfile should run on the server computer. The file /opt/test/itworked should be created on the server computer. THIS IS WHAT WE WANT. 2. The server computer logs the following messages in /var/log/secure. (ginblossoms is the server, wilburys is the client.) Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Authentication tried for root with correct key but not from a permitted host (host=wilburys.corp.onlinemeridian.com, ip=10.110.0.34). Jan 3 13:55:06 ginblossoms sshd[11988]: Accepted publickey for root from 10.110.0.34 port 39160 ssh2 Jan 3 13:55:06 ginblossoms sshd[11988]: pam_unix(sshd:session): session opened for user root by (uid=0) Jan 3 13:55:06 ginblossoms sshd[11988]: Received disconnect from 10.110.0.34: 11: disconnected by user Jan 3 13:55:06 ginblossoms sshd[11988]: pam_unix(sshd:session): session closed for user root Expected results: 1. The script /opt/test/crfile should run on the server computer. The file /opt/test/itworked should be created on the server computer. 2. The server should log the following messages in /var/log/secure. Jan 3 13:55:06 ginblossoms sshd[11988]: Accepted publickey for root from 10.110.0.34 port 39160 ssh2 Jan 3 13:55:06 ginblossoms sshd[11988]: pam_unix(sshd:session): session opened for user root by (uid=0) Jan 3 13:55:06 ginblossoms sshd[11988]: Received disconnect from 10.110.0.34: 11: disconnected by user Jan 3 13:55:06 ginblossoms sshd[11988]: pam_unix(sshd:session): session closed for user root Additional info: 1. Public key authentication worked on Fedora 13 with openssh-server-5.4p1-3.fc13.i686. 2. I have captured network packets and it appears normal. Specifically, there do not appear to be 26 attempts to authenticate. There is one TCP connection established, one negotiation, one key exchange, a few encrypted packets passed back-and-forth, and a clean disconnect.
please attach your /etc/ssh/sshd_config from the server and the /etc/ssh/ssh_config and ~/.ssh/config from the client (remove sensitive data before attaching) If you have any configuration items in the used authorized keys send them as well.
I'm seeing this bug even if I explicitly add both the IP and the name of the client host to the "correct key" on the host ~username/.ssh/authorized_keys: from="CLIENT.IP, CLIENT_NAME" ssh-dss .....pub-key-comes-here.... comment Adding the client IP explicitly to /etc/hosts.allow: sshd: CLIENT.IP Doesn't help either. I keep getting this bogus message logged on every ssh connection by username from CLIENT.IP: "Authentication tried for username with correct key but not from a permitted host" It seems wrong. How can one set a permitted host besides being explicit in the relevant authorized_keys 'from=...' clause? /etc/ssh/sshd_config on the server side, has these host or otherwise possibly related settings: ------------------------------------------------------ StrictModes yes RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile %h/.ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes ------------------------------------------------------ Since I do trust ~/.ssh/known_hosts I didn't uncomment that line.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
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