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2010-05-10 - jmc@cvs.openbsd.org 2010/05/07 12:49:17Damien Miller
[sshd_config.5] tweak previous;
2010-05-10 - djm@cvs.openbsd.org 2010/05/07 11:30:30Damien Miller
[auth-options.c auth-options.h auth.c auth.h auth2-pubkey.c] [key.c servconf.c servconf.h sshd.8 sshd_config.5] add some optional indirection to matching of principal names listed in certificates. Currently, a certificate must include the a user's name to be accepted for authentication. This change adds the ability to specify a list of certificate principal names that are acceptable. When authenticating using a CA trusted through ~/.ssh/authorized_keys, this adds a new principals="name1[,name2,...]" key option. For CAs listed through sshd_config's TrustedCAKeys option, a new config option "AuthorizedPrincipalsFile" specifies a per-user file containing the list of acceptable names. If either option is absent, the current behaviour of requiring the username to appear in principals continues to apply. These options are useful for role accounts, disjoint account namespaces and "user@realm"-style naming policies in certificates. feedback and ok markus@
2010-03-05 - djm@cvs.openbsd.org 2010/03/04 23:17:25Damien Miller
[sshd_config.5] missing word; spotted by jmc@
2010-03-05 - jmc@cvs.openbsd.org 2010/03/04 12:51:25Damien Miller
[ssh.1 sshd_config.5] tweak previous;
2010-03-04 - djm@cvs.openbsd.org 2010/03/04 10:36:03Damien Miller
[auth-rh-rsa.c auth-rsa.c auth.c auth.h auth2-hostbased.c auth2-pubkey.c] [authfile.c authfile.h hostfile.c hostfile.h servconf.c servconf.h] [ssh-keygen.c ssh.1 sshconnect.c sshd_config.5] Add a TrustedUserCAKeys option to sshd_config to specify CA keys that are trusted to authenticate users (in addition than doing it per-user in authorized_keys). Add a RevokedKeys option to sshd_config and a @revoked marker to known_hosts to allow keys to me revoked and banned for user or host authentication. feedback and ok markus@
2010-02-27 - OpenBSD CVS SyncDamien Miller
- djm@cvs.openbsd.org 2010/02/26 20:29:54 [PROTOCOL PROTOCOL.agent PROTOCOL.certkeys addrmatch.c auth-options.c] [auth-options.h auth.h auth2-pubkey.c authfd.c dns.c dns.h hostfile.c] [hostfile.h kex.h kexdhs.c kexgexs.c key.c key.h match.h monitor.c] [myproposal.h servconf.c servconf.h ssh-add.c ssh-agent.c ssh-dss.c] [ssh-keygen.1 ssh-keygen.c ssh-rsa.c ssh.1 ssh.c ssh2.h sshconnect.c] [sshconnect2.c sshd.8 sshd.c sshd_config.5] Add support for certificate key types for users and hosts. OpenSSH certificate key types are not X.509 certificates, but a much simpler format that encodes a public key, identity information and some validity constraints and signs it with a CA key. CA keys are regular SSH keys. This certificate style avoids the attack surface of X.509 certificates and is very easy to deploy. Certified host keys allow automatic acceptance of new host keys when a CA certificate is marked as sh/known_hosts. see VERIFYING HOST KEYS in ssh(1) for details. Certified user keys allow authentication of users when the signing CA key is marked as trusted in authorized_keys. See "AUTHORIZED_KEYS FILE FORMAT" in sshd(8) for details. Certificates are minted using ssh-keygen(1), documentation is in the "CERTIFICATES" section of that manpage. Documentation on the format of certificates is in the file PROTOCOL.certkeys feedback and ok markus@
2010-01-10 - dtucker@cvs.openbsd.org 2010/01/09 23:04:13Darren Tucker
[channels.c ssh.1 servconf.c sshd_config.5 sshd.c channels.h servconf.h ssh-keyscan.1 ssh-keyscan.c readconf.c sshconnect.c misc.c ssh.c readconf.h scp.1 sftp.1 ssh_config.5 misc.h] Remove RoutingDomain from ssh since it's now not needed. It can be replaced with "route exec" or "nc -V" as a proxycommand. "route exec" also ensures that trafic such as DNS lookups stays withing the specified routingdomain. For example (from reyk): # route -T 2 exec /usr/sbin/sshd or inherited from the parent process $ route -T 2 exec sh $ ssh 10.1.2.3 ok deraadt@ markus@ stevesk@ reyk@
2010-01-08 - jmc@cvs.openbsd.org 2009/12/29 18:03:32Darren Tucker
[sshd_config.5 ssh_config.5] sort previous;
2010-01-08 - stevesk@cvs.openbsd.org 2009/12/29 16:38:41Darren Tucker
[sshd_config.5 readconf.c ssh_config.5 scp.1 servconf.c sftp.1 ssh.1] Rename RDomain config option to RoutingDomain to be more clear and consistent with other options. NOTE: if you currently use RDomain in the ssh client or server config, or ssh/sshd -o, you must update to use RoutingDomain. ok markus@ djm@
2010-01-08 - guenther@cvs.openbsd.org 2009/12/20 07:28:36Darren Tucker
[ssh.c sftp.c scp.c] When passing user-controlled options with arguments to other programs, pass the option and option argument as separate argv entries and not smashed into one (e.g., as -l foo and not -lfoo). Also, always pass a "--" argument to stop option parsing, so that a positional argument that starts with a '-' isn't treated as an option. This fixes some error cases as well as the handling of hostnames and filenames that start with a '-'. Based on a diff by halex@ ok halex@ djm@ deraadt@
2010-01-08 - djm@cvs.openbsd.org 2009/11/10 02:58:56Darren Tucker
[sshd_config.5] clarify that StrictModes does not apply to ChrootDirectory. Permissions and ownership are always checked when chrooting. bz#1532
2010-01-08 - jmc@cvs.openbsd.org 2009/10/28 21:45:08Darren Tucker
[sshd_config.5 sftp.1] tweak previous;
2010-01-08 - reyk@cvs.openbsd.org 2009/10/28 16:38:18Darren Tucker
[ssh_config.5 sshd.c misc.h ssh-keyscan.1 readconf.h sshconnect.c channels.c channels.h servconf.h servconf.c ssh.1 ssh-keyscan.c scp.1 sftp.1 sshd_config.5 readconf.c ssh.c misc.c] Allow to set the rdomain in ssh/sftp/scp/sshd and ssh-keyscan. ok markus@
2009-10-11 - jmc@cvs.openbsd.org 2009/10/08 20:42:12Darren Tucker
[sshd_config.5 ssh_config.5 sshd.8 ssh.1] some tweaks now that protocol 1 is not offered by default; ok markus
2009-10-11 - (dtucker) OpenBSD CVS SyncDarren Tucker
- markus@cvs.openbsd.org 2009/10/08 14:03:41 [sshd_config readconf.c ssh_config.5 servconf.c sshd_config.5] disable protocol 1 by default (after a transition period of about 10 years) ok deraadt
2009-10-07 - dtucker@cvs.openbsd.org 2009/08/16 23:29:26Darren Tucker
[sshd_config.5] Add PubkeyAuthentication to the list allowed in a Match block (bz #1577)
2009-08-28downgrade mention of login.conf to be an example and mention PAM asDamien Miller
another provider for ChallengeResponseAuthentication; bz#1408; ok dtucker@
2009-06-21 - stevesk@cvs.openbsd.org 2009/04/21 15:13:17Darren Tucker
[sshd_config.5] clarify we cd to user's home after chroot; ok markus@ on earlier version; tweaks and ok jmc@
2009-06-21 - jmc@cvs.openbsd.org 2009/04/18 18:39:10Darren Tucker
[sshd_config.5] tweak previous; ok stevesk
2009-06-21 - stevesk@cvs.openbsd.org 2009/04/17 19:40:17Darren Tucker
[sshd_config.5] clarify that even internal-sftp needs /dev/log for logging to work; ok markus@
2009-06-21 - stevesk@cvs.openbsd.org 2009/04/13 19:07:44Darren Tucker
[sshd_config.5] fix possessive; ok djm@
2009-02-23 - djm@cvs.openbsd.org 2009/02/22 23:59:25Damien Miller
[sshd_config.5] missing period
2009-02-23 - djm@cvs.openbsd.org 2009/02/22 23:50:57Damien Miller
[ssh_config.5 sshd_config.5] don't advertise experimental options
2009-01-28 - naddy@cvs.openbsd.org 2009/01/24 17:10:22Damien Miller
[ssh_config.5 sshd_config.5] sync list of preferred ciphers; ok djm@
2009-01-28 - okan@cvs.openbsd.org 2008/12/30 00:46:56Damien Miller
[sshd_config.5] add AllowAgentForwarding to available Match keywords list ok djm
2008-11-05 - djm@cvs.openbsd.org 2008/11/04 08:22:13Damien Miller
[auth.h auth2.c monitor.c monitor.h monitor_wrap.c monitor_wrap.h] [readconf.c readconf.h servconf.c servconf.h ssh2.h ssh_config.5] [sshconnect2.c sshd_config.5 jpake.c jpake.h schnorr.c auth2-jpake.c] [Makefile.in] Add support for an experimental zero-knowledge password authentication method using the J-PAKE protocol described in F. Hao, P. Ryan, "Password Authenticated Key Exchange by Juggling", 16th Workshop on Security Protocols, Cambridge, April 2008. This method allows password-based authentication without exposing the password to the server. Instead, the client and server exchange cryptographic proofs to demonstrate of knowledge of the password while revealing nothing useful to an attacker or compromised endpoint. This is experimental, work-in-progress code and is presently compiled-time disabled (turn on -DJPAKE in Makefile.inc). "just commit it. It isn't too intrusive." deraadt@
2008-11-03 - djm@cvs.openbsd.org 2008/10/09 03:50:54Damien Miller
[servconf.c sshd_config.5] support setting PermitEmptyPasswords in a Match block requested in PR3891; ok dtucker@
2008-07-02 - djm@cvs.openbsd.org 2008/07/02 02:24:18Darren Tucker
[sshd_config sshd_config.5 sshd.8 servconf.c] increase default size of ssh protocol 1 ephemeral key from 768 to 1024 bits; prodded by & ok dtucker@ ok deraadt@
2008-06-16 - dtucker@cvs.openbsd.org 2008/06/15 16:58:40Damien Miller
[servconf.c sshd_config.5] Allow MaxAuthTries within a Match block. ok djm@
2008-06-16 - dtucker@cvs.openbsd.org 2008/06/15 16:55:38Damien Miller
[sshd_config.5] MaxSessions is allowed in a Match block too
2008-06-10 - jmc@cvs.openbsd.org 2008/06/10 07:12:00Darren Tucker
[sshd_config.5] tweak previous;
2008-06-10 - djm@cvs.openbsd.org 2008/06/10 04:17:46Darren Tucker
[sshd_config.5] better reference for pattern-list
2008-06-10 - (dtucker) OpenBSD CVS SyncDarren Tucker
- djm@cvs.openbsd.org 2008/06/10 03:57:27 [servconf.c match.h sshd_config.5] support CIDR address matching in sshd_config "Match address" blocks, with full support for negation and fall-back to classic wildcard matching. For example: Match address 192.0.2.0/24,3ffe:ffff::/32,!10.* PasswordAuthentication yes addrmatch.c code mostly lifted from flowd's addr.c feedback and ok dtucker@
2008-05-19 - djm@cvs.openbsd.org 2008/05/08 12:21:16Damien Miller
[monitor.c monitor_wrap.c session.h servconf.c servconf.h session.c] [sshd_config sshd_config.5] Make the maximum number of sessions run-time controllable via a sshd_config MaxSessions knob. This is useful for disabling login/shell/subsystem access while leaving port-forwarding working (MaxSessions 0), disabling connection multiplexing (MaxSessions 1) or simply increasing the number of allows multiplexed sessions. Because some bozos are sure to configure MaxSessions in excess of the number of available file descriptors in sshd (which, at peak, might be as many as 9*MaxSessions), audit sshd to ensure that it doesn't leak fds on error paths, and make it fail gracefully on out-of-fd conditions - sending channel errors instead of than exiting with fatal(). bz#1090; MaxSessions config bits and manpage from junyer AT gmail.com ok markus@
2008-05-19 - jmc@cvs.openbsd.org 2008/05/07 08:00:14Damien Miller
[sshd_config.5] sort;
2008-05-19 - pyr@cvs.openbsd.org 2008/05/07 05:49:37Damien Miller
[servconf.c servconf.h session.c sshd_config.5] Enable the AllowAgentForwarding option in sshd_config (global and match context), to specify if agents should be permitted on the server. As the man page states: ``Note that disabling Agent forwarding does not improve security unless users are also denied shell access, as they can always install their own forwarders.'' ok djm@, ok and a mild frown markus@
2008-05-19 - djm@cvs.openbsd.org 2008/04/05 02:46:02Damien Miller
[sshd_config.5] HostbasedAuthentication is supported under Match too
2008-05-19 - djm@cvs.openbsd.org 2008/04/04 06:44:26Damien Miller
[sshd_config.5] oops, some unrelated stuff crept into that commit - backout. spotted by jmc@
2008-05-19 - (djm) OpenBSD CVS SyncDamien Miller
- djm@cvs.openbsd.org 2008/04/04 05:14:38 [sshd_config.5] ChrootDirectory is supported in Match blocks (in fact, it is most useful there). Spotted by Minstrel AT minstrel.org.uk
2008-03-27 - djm@cvs.openbsd.org 2008/03/25 11:58:02Damien Miller
[session.c sshd_config.5] ignore ~/.ssh/rc if a sshd_config ForceCommand is specified; from dtucker@ ok deraadt@ djm@
2008-03-27 - jmc@cvs.openbsd.org 2008/02/11 07:58:28Damien Miller
[ssh.1 sshd.8 sshd_config.5] bump Mdocdate for pages committed in "febuary", necessary because of a typo in rcs.c;
2008-02-10 - djm@cvs.openbsd.org 2008/02/10 09:55:37Damien Miller
[sshd_config.5] mantion that "internal-sftp" is useful with ForceCommand too
2008-02-10 - jmc@cvs.openbsd.org 2008/02/09 08:04:31Damien Miller
[sshd_config.5] missing `)';
2008-02-10 - djm@cvs.openbsd.org 2008/02/08 23:24:07Damien Miller
[servconf.c servconf.h session.c sftp-server.c sftp.h sshd_config] [sshd_config.5] add sshd_config ChrootDirectory option to chroot(2) users to a directory and tweak internal sftp server to work with it (no special files in chroot required). ok markus@
2008-01-01 - dtucker@cvs.openbsd.org 2008/01/01 09:27:33Darren Tucker
[sshd_config.5 servconf.c] Allow PermitRootLogin in a Match block. Allows for, eg, permitting root only from the local network. ok markus@, man page bit ok jmc@
2007-09-17 - djm@cvs.openbsd.org 2007/08/23 03:22:16Damien Miller
[auth2-none.c sshd_config sshd_config.5] Support "Banner=none" to disable displaying of the pre-login banner; ok dtucker@ deraadt@
2007-06-11 - jmc@cvs.openbsd.org 2007/06/08 07:48:09Damien Miller
[sshd_config.5] oops, here too: put the MAC list into a display, like we do for ciphers, since groff has trouble with wide lines;
2007-06-11 - pvalchev@cvs.openbsd.org 2007/06/07 19:37:34Damien Miller
[kex.h mac.c mac.h monitor_wrap.c myproposal.h packet.c ssh.1] [ssh_config.5 sshd.8 sshd_config.5] Add a new MAC algorithm for data integrity, UMAC-64 (not default yet, must specify umac-64@openssh.com). Provides about 20% end-to-end speedup compared to hmac-md5. Represents a different approach to message authentication to that of HMAC that may be beneficial if HMAC based on one of its underlying hash algorithms is found to be vulnerable to a new attack. http://www.ietf.org/rfc/rfc4418.txt in conjunction with and OK djm@
2007-06-05 - jmc@cvs.openbsd.org 2007/05/31 19:20:16Darren Tucker
[scp.1 ssh_config.5 sftp-server.8 ssh-agent.1 sshd_config.5 sftp.1 ssh-keygen.1 ssh-keyscan.1 ssh-add.1 sshd.8 ssh.1 ssh-keysign.8] convert to new .Dd format; (We will need to teach mdoc2man.awk to understand this too.)
2007-03-06 - OpenBSD CVS SyncDamien Miller
- jmc@cvs.openbsd.org 2007/03/01 16:19:33 [sshd_config.5] sort the `match' keywords;