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2008-05-12* Mitigate OpenSSL security vulnerability:Colin Watson
- Add key blacklisting support. Keys listed in /etc/ssh/blacklist.TYPE-LENGTH will be rejected for authentication by sshd, unless "PermitBlacklistedKeys yes" is set in /etc/ssh/sshd_config. - Add a new program, ssh-vulnkey, which can be used to check keys against these blacklists. - Depend on openssh-blacklist. - Force dependencies on libssl0.9.8 / libcrypto0.9.8-udeb to at least 0.9.8g-9. - Automatically regenerate known-compromised host keys, with a critical-priority debconf note. (I regret that there was no time to gather translations.)
2007-06-12* New upstream release (closes: #395507, #397961, #420035). ImportantColin Watson
changes not previously backported to 4.3p2: - 4.4/4.4p1 (http://www.openssh.org/txt/release-4.4): + On portable OpenSSH, fix a GSSAPI authentication abort that could be used to determine the validity of usernames on some platforms. + Implemented conditional configuration in sshd_config(5) using the "Match" directive. This allows some configuration options to be selectively overridden if specific criteria (based on user, group, hostname and/or address) are met. So far a useful subset of post-authentication options are supported and more are expected to be added in future releases. + Add support for Diffie-Hellman group exchange key agreement with a final hash of SHA256. + Added a "ForceCommand" directive to sshd_config(5). Similar to the command="..." option accepted in ~/.ssh/authorized_keys, this forces the execution of the specified command regardless of what the user requested. This is very useful in conjunction with the new "Match" option. + Add a "PermitOpen" directive to sshd_config(5). This mirrors the permitopen="..." authorized_keys option, allowing fine-grained control over the port-forwardings that a user is allowed to establish. + Add optional logging of transactions to sftp-server(8). + ssh(1) will now record port numbers for hosts stored in ~/.ssh/known_hosts when a non-standard port has been requested (closes: #50612). + Add an "ExitOnForwardFailure" option to cause ssh(1) to exit (with a non-zero exit code) when requested port forwardings could not be established. + Extend sshd_config(5) "SubSystem" declarations to allow the specification of command-line arguments. + Replacement of all integer overflow susceptible invocations of malloc(3) and realloc(3) with overflow-checking equivalents. + Many manpage fixes and improvements. + Add optional support for OpenSSL hardware accelerators (engines), enabled using the --with-ssl-engine configure option. + Tokens in configuration files may be double-quoted in order to contain spaces (closes: #319639). + Move a debug() call out of a SIGCHLD handler, fixing a hang when the session exits very quickly (closes: #307890). + Fix some incorrect buffer allocation calculations (closes: #410599). + ssh-add doesn't ask for a passphrase if key file permissions are too liberal (closes: #103677). + Likewise, ssh doesn't ask either (closes: #99675). - 4.6/4.6p1 (http://www.openssh.org/txt/release-4.6): + sshd now allows the enabling and disabling of authentication methods on a per user, group, host and network basis via the Match directive in sshd_config. + Fixed an inconsistent check for a terminal when displaying scp progress meter (closes: #257524). + Fix "hang on exit" when background processes are running at the time of exit on a ttyful/login session (closes: #88337). * Update to current GSSAPI patch from http://www.sxw.org.uk/computing/patches/openssh-4.6p1-gsskex-20070312.patch; install ChangeLog.gssapi.
2007-02-19 - dtucker@cvs.openbsd.org 2007/02/19 10:45:58Darren Tucker
[monitor_wrap.c servconf.c servconf.h monitor.c sshd_config.5] Teach Match how handle config directives that are used before authentication. This allows configurations such as permitting password authentication from the local net only while requiring pubkey from offsite. ok djm@, man page bits ok jmc@
2006-08-19 - dtucker@cvs.openbsd.org 2006/08/14 12:40:25Damien Miller
[servconf.c servconf.h sshd_config.5] Add ability to match groups to Match keyword in sshd_config. Feedback djm@, stevesk@, ok stevesk@.
2006-08-05 - deraadt@cvs.openbsd.org 2006/08/03 03:34:42Damien Miller
[OVERVIEW atomicio.c atomicio.h auth-bsdauth.c auth-chall.c auth-krb5.c] [auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c] [auth-rsa.c auth-skey.c auth.c auth.h auth1.c auth2-chall.c auth2-gss.c] [auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c ] [auth2-pubkey.c auth2.c authfd.c authfd.h authfile.c bufaux.c bufbn.c] [buffer.c buffer.h canohost.c channels.c channels.h cipher-3des1.c] [cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c] [compress.c deattack.c dh.c dispatch.c dns.c dns.h fatal.c groupaccess.c] [groupaccess.h gss-genr.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c] [kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c] [key.h log.c log.h mac.c match.c md-sha256.c misc.c misc.h moduli.c] [monitor.c monitor_fdpass.c monitor_mm.c monitor_mm.h monitor_wrap.c] [monitor_wrap.h msg.c nchan.c packet.c progressmeter.c readconf.c] [readconf.h readpass.c rsa.c scard.c scard.h scp.c servconf.c servconf.h] [serverloop.c session.c session.h sftp-client.c sftp-common.c] [sftp-common.h sftp-glob.c sftp-server.c sftp.c ssh-add.c ssh-agent.c] [ssh-dss.c ssh-gss.h ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rsa.c] [ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c] [sshd.c sshlogin.c sshlogin.h sshpty.c sshpty.h sshtty.c ttymodes.c] [uidswap.c uidswap.h uuencode.c uuencode.h xmalloc.c xmalloc.h] [loginrec.c loginrec.h openbsd-compat/port-aix.c openbsd-compat/port-tun.h] almost entirely get rid of the culture of ".h files that include .h files" ok djm, sort of ok stevesk makes the pain stop in one easy step NB. portable commit contains everything *except* removing includes.h, as that will take a fair bit more work as we move headers that are required for portability workarounds to defines.h. (also, this step wasn't "easy")
2006-07-24 - dtucker@cvs.openbsd.org 2006/07/21 12:43:36Damien Miller
[channels.c channels.h servconf.c servconf.h sshd_config.5] Make PermitOpen take a list of permitted ports and act more like most other keywords (ie the first match is the effective setting). This also makes it easier to override a previously set PermitOpen. ok djm@
2006-07-24 - dtucker@cvs.openbsd.org 2006/07/19 13:07:10Damien Miller
[servconf.c servconf.h session.c sshd.8 sshd_config sshd_config.5] Add ForceCommand keyword to sshd_config, equivalent to the "command=" key option, man page entry and example in sshd_config. Feedback & ok djm@, man page corrections & ok jmc@
2006-07-12 - dtucker@cvs.openbsd.org 2006/07/12 11:34:58Darren Tucker
[sshd.c servconf.h servconf.c sshd_config.5 auth.c] Add support for conditional directives to sshd_config via a "Match" keyword, which works similarly to the "Host" directive in ssh_config. Lines after a Match line override the default set in the main section if the condition on the Match line is true, eg AllowTcpForwarding yes Match User anoncvs AllowTcpForwarding no will allow port forwarding by all users except "anoncvs". Currently only a very small subset of directives are supported. ok djm@
2006-07-10 - djm@cvs.openbsd.org 2006/07/06 10:47:05Damien Miller
[servconf.c servconf.h session.c sshd_config.5] support arguments to Subsystem commands; ok markus@
2006-05-12* Update to current GSSAPI patch fromColin Watson
http://www.sxw.org.uk/computing/patches/openssh-4.3p2-gsskex-20060223.patch (closes: #352042).
2006-03-26 - djm@cvs.openbsd.org 2006/03/25 22:22:43Damien Miller
[atomicio.h auth-options.h auth.h auth2-gss.c authfd.h authfile.h] [bufaux.h buffer.h canohost.h channels.h cipher.h clientloop.h] [compat.h compress.h crc32.c crc32.h deattack.h dh.h dispatch.h] [dns.c dns.h getput.h groupaccess.h gss-genr.c gss-serv-krb5.c] [gss-serv.c hostfile.h includes.h kex.h key.h log.h mac.h match.h] [misc.h monitor.h monitor_fdpass.h monitor_mm.h monitor_wrap.h msg.h] [myproposal.h packet.h pathnames.h progressmeter.h readconf.h rsa.h] [scard.h servconf.h serverloop.h session.h sftp-common.h sftp.h] [ssh-gss.h ssh.h ssh1.h ssh2.h sshconnect.h sshlogin.h sshpty.h] [ttymodes.h uidswap.h uuencode.h xmalloc.h] standardise spacing in $OpenBSD$ tags; requested by deraadt@
2005-12-13 - reyk@cvs.openbsd.org 2005/12/06 22:38:28Damien Miller
[auth-options.c auth-options.h channels.c channels.h clientloop.c] [misc.c misc.h readconf.c readconf.h scp.c servconf.c servconf.h] [serverloop.c sftp.c ssh.1 ssh.c ssh_config ssh_config.5 sshconnect.c] [sshconnect.h sshd.8 sshd_config sshd_config.5] Add support for tun(4) forwarding over OpenSSH, based on an idea and initial channel code bits by markus@. This is a simple and easy way to use OpenSSH for ad hoc virtual private network connections, e.g. administrative tunnels or secure wireless access. It's based on a new ssh channel and works similar to the existing TCP forwarding support, except that it depends on the tun(4) network interface on both ends of the connection for layer 2 or layer 3 tunneling. This diff also adds support for LocalCommand in the ssh(1) client. ok djm@, markus@, jmc@ (manpages), tested and discussed with others
2005-01-20 - djm@cvs.openbsd.org 2004/12/23 23:11:00Darren Tucker
[servconf.c servconf.h sshd.c sshd_config sshd_config.5] bz #898: support AddressFamily in sshd_config. from peak@argo.troja.mff.cuni.cz; ok deraadt@
2004-06-25 - djm@cvs.openbsd.org 2004/06/24 19:30:54Darren Tucker
[servconf.c servconf.h sshd.c] re-exec sshd on accept(); initial work, final debugging and ok markus@
2004-05-24 - dtucker@cvs.openbsd.org 2004/05/23 23:59:53Darren Tucker
[auth.c auth.h auth1.c auth2.c servconf.c servconf.h sshd_config sshd_config.5] Add MaxAuthTries sshd config option; ok markus@
2004-05-02 - djm@cvs.openbsd.org 2004/04/27 09:46:37Darren Tucker
[readconf.c readconf.h servconf.c servconf.h session.c session.h ssh.c ssh_config.5 sshd_config.5] bz #815: implement ability to pass specified environment variables from the client to the server; ok markus@
2003-12-31 - jakob@cvs.openbsd.org 2003/12/23 16:12:10Darren Tucker
[servconf.c servconf.h session.c sshd_config] implement KerberosGetAFSToken server option. ok markus@, beck@
2003-12-17 - markus@cvs.openbsd.org 2003/12/09 21:53:37Damien Miller
[readconf.c readconf.h scp.1 servconf.c servconf.h sftp.1 ssh.1] [ssh_config.5 sshconnect.c sshd.c sshd_config.5] rename keepalive to tcpkeepalive; the old name causes too much confusion; ok djm, dtucker; with help from jmc@
2003-09-02 - markus@cvs.openbsd.org 2003/09/01 18:15:50Damien Miller
[readconf.c readconf.h servconf.c servconf.h ssh.c] remove unused kerberos code; ok henning@
2003-08-26 - markus@cvs.openbsd.org 2003/08/22 10:56:09Darren Tucker
[auth2.c auth2-gss.c auth.h compat.c compat.h gss-genr.c gss-serv-krb5.c gss-serv.c monitor.c monitor.h monitor_wrap.c monitor_wrap.h readconf.c readconf.h servconf.c servconf.h session.c session.h ssh-gss.h ssh_config.5 sshconnect2.c sshd_config sshd_config.5] support GSS API user authentication; patches from Simon Wilkinson, stripped down and tested by Jakob and myself.
2003-08-13 - markus@cvs.openbsd.org 2003/08/13 08:46:31Darren Tucker
[auth1.c readconf.c readconf.h servconf.c servconf.h ssh.c ssh_config ssh_config.5 sshconnect1.c sshd.8 sshd.c sshd_config sshd_config.5] remove RhostsAuthentication; suggested by djm@ before; ok djm@, deraadt@, fgsch@, miod@, henning@, jakob@ and others
2003-08-02 - (dtucker) OpenBSD CVS SyncDarren Tucker
- markus@cvs.openbsd.org 2003/07/22 13:35:22 [auth1.c auth.h auth-passwd.c monitor.c monitor.h monitor_wrap.c monitor_wrap.h readconf.c readconf.h servconf.c servconf.h session.c ssh.1 ssh.c ssh_config.5 sshconnect1.c sshd.c sshd_config.5 ssh.h] remove (already disabled) KRB4/AFS support, re-enable -k in ssh(1); test+ok henning@ - (dtucker) [Makefile.in acconfig.h configure.ac] Remove KRB4/AFS support. - (dtucker) [auth-krb4.c radix.c radix.h] Remove KRB4/AFS specific files. I hope I got this right....
2003-06-03 - (djm) OpenBSD CVS SyncDamien Miller
- markus@cvs.openbsd.org 2003/06/02 09:17:34 [auth2-hostbased.c auth.c auth-options.c auth-rhosts.c auth-rh-rsa.c] [canohost.c monitor.c servconf.c servconf.h session.c sshd_config] [sshd_config.5] deprecate VerifyReverseMapping since it's dangerous if combined with IP based access control as noted by Mike Harding; replace with a UseDNS option, UseDNS is on by default and includes the VerifyReverseMapping check; with itojun@, provos@, jakob@ and deraadt@ ok deraadt@, djm@ - (djm) Fix portable-specific uses of verify_reverse_mapping too
2003-05-15 - jakob@cvs.openbsd.org 2003/05/15 01:48:10Damien Miller
[readconf.c readconf.h servconf.c servconf.h] always parse kerberos options. ok djm@ markus@ - (djm) Always parse UsePAM
2003-05-14 - (djm) Add new UsePAM configuration directive to allow runtime controlDamien Miller
over usage of PAM. This allows non-root use of sshd when built with --with-pam
2002-08-01 - markus@cvs.openbsd.org 2002/07/30 17:03:55Ben Lindstrom
[auth-options.c servconf.c servconf.h session.c sshd_config sshd_config.5] add PermitUserEnvironment (off by default!); from dot@dotat.at; ok provos, deraadt
2002-06-21 - markus@cvs.openbsd.org 2002/06/20 23:05:56Ben Lindstrom
[servconf.c servconf.h session.c sshd.c] allow Compression=yes/no in sshd_config
2002-03-22 - stevesk@cvs.openbsd.org 2002/03/20 19:12:25Ben Lindstrom
[servconf.c servconf.h ssh.h sshd.c] for unprivileged user, group do: pw=getpwnam(SSH_PRIVSEP_USER); do_setusercontext(pw). ok provos@
2002-03-22 - stevesk@cvs.openbsd.org 2002/03/19 03:03:43Ben Lindstrom
[pathnames.h servconf.c servconf.h sshd.c] _PATH_PRIVSEP_CHROOT_DIR; ok provos@
2002-03-22 - provos@cvs.openbsd.org 2002/03/18 17:50:31Ben Lindstrom
[auth-bsdauth.c auth-options.c auth-rh-rsa.c auth-rsa.c auth-skey.c auth.h auth1.c auth2-chall.c auth2.c kex.c kex.h kexdh.c kexgex.c servconf.c session.h servconf.h serverloop.c session.c sshd.c] integrate privilege separated openssh; its turned off by default for now. work done by me and markus@ applied, but outside of ensure that smaller code bits migrated with their owners.. no work was tried to 'fix' it to work. =) Later project!
2002-03-05 - stevesk@cvs.openbsd.org 2002/03/04 17:27:39Ben Lindstrom
[auth-krb5.c auth-options.h auth.h authfd.h authfile.h bufaux.h buffer.h channels.h cipher.h compat.h compress.h crc32.h deattack.c getput.h groupaccess.c misc.c mpaux.h packet.h readconf.h rsa.h scard.h servconf.h ssh-agent.c ssh.h ssh2.h sshpty.h sshtty.c ttymodes.h uuencode.c xmalloc.h] $OpenBSD$ and RCSID() cleanup: don't use RCSID() in .h files; add missing RCSID() to .c files and remove dup /*$OpenBSD$*/ from .c files. ok markus@
2002-02-05 - markus@cvs.openbsd.org 2002/01/29 14:32:03Damien Miller
[auth2.c auth.c auth-options.c auth-rhosts.c auth-rh-rsa.c canohost.c servconf.c servconf.h session.c sshd.8 sshd_config] s/ReverseMappingCheck/VerifyReverseMapping/ and avoid confusion; ok stevesk@
2002-02-05 - stevesk@cvs.openbsd.org 2002/01/27 14:57:46Damien Miller
[channels.c servconf.c servconf.h session.c sshd.8 sshd_config] add X11UseLocalhost; ok markus@
2001-12-21 - deraadt@cvs.openbsd.org 2001/12/19 07:18:56Damien Miller
[auth1.c auth2.c auth2-chall.c auth-bsdauth.c auth.c authfile.c auth.h] [auth-krb4.c auth-rhosts.c auth-skey.c bufaux.c canohost.c channels.c] [cipher.c clientloop.c compat.c compress.c deattack.c key.c log.c mac.c] [match.c misc.c nchan.c packet.c readconf.c rijndael.c rijndael.h scard.c] [servconf.c servconf.h serverloop.c session.c sftp.c sftp-client.c] [sftp-glob.c sftp-int.c sftp-server.c ssh-add.c ssh-agent.c ssh.c] [sshconnect1.c sshconnect2.c sshconnect.c sshd.8 sshd.c sshd_config] [ssh-keygen.c sshlogin.c sshpty.c sshtty.c ttymodes.c uidswap.c] basic KNF done while i was looking for something else
2001-12-06 - markus@cvs.openbsd.org 2001/12/06 13:30:06Ben Lindstrom
[servconf.c servconf.h sshd.8 sshd.c] add -o to sshd, too. ok deraadt@ - (bal) Minor white space fix up in servconf.c
2001-09-12 - stevesk@cvs.openbsd.org 2001/08/17 18:59:47Ben Lindstrom
[servconf.h] typo in comment
2001-09-12 - jakob@cvs.openbsd.org 2001/08/16 19:18:34Ben Lindstrom
[servconf.c servconf.h session.c sshd.8] deprecate CheckMail. ok markus@
2001-07-04 - (stevesk) sync servconf.h (comments)Kevin Steves
2001-07-04 - markus@cvs.openbsd.org 2001/06/26 17:27:25Ben Lindstrom
[authfd.h authfile.h auth.h auth-options.h bufaux.h buffer.h canohost.h channels.h cipher.h clientloop.h compat.h compress.h crc32.h deattack.h dh.h dispatch.h groupaccess.c groupaccess.h hostfile.h kex.h key.h log.c log.h mac.h misc.c misc.h mpaux.h packet.h radix.h readconf.h readpass.h rsa.h servconf.h serverloop.h session.h sftp-common.c sftp-common.h sftp-glob.h sftp-int.h sshconnect.h ssh-dss.h sshlogin.h sshpty.h ssh-rsa.h sshtty.h tildexpand.h uidswap.h uuencode.h xmalloc.h] remove comments from .h, since they are cut&paste from the .c files and out of sync
2001-07-04 - dugsong@cvs.openbsd.org 2001/06/26 16:15:25Ben Lindstrom
[auth1.c auth.h auth-krb4.c auth-passwd.c readconf.c readconf.h servconf.c servconf.h session.c sshconnect1.c sshd.c] Kerberos v5 support for SSH1, mostly from Assar Westerlund <assar@freebsd.org> and Bjorn Gronvall <bg@sics.se>. markus@ ok
2001-07-04 - itojun@cvs.openbsd.org 2001/06/26 06:33:07Ben Lindstrom
[servconf.h serverloop.h session.h sftp-client.h sftp-common.h sftp-glob.h sftp-int.h sshconnect.h ssh-dss.h sshlogin.h sshpty.h ssh-rsa.h tildexpand.h uidswap.h uuencode.h xmalloc.h] prototype pedant. not very creative... - () -> (void) - no variable names
2001-06-25 - markus@cvs.openbsd.org 2001/06/23 02:34:33Ben Lindstrom
[kexdh.c kexgex.c kex.h pathnames.h readconf.c servconf.h ssh.1 sshconnect1.c sshconnect2.c sshconnect.c sshconnect.h sshd.8] get rid of known_hosts2, use it for hostkey lookup, but do not modify.
2001-06-05 - markus@cvs.openbsd.org 2001/05/20 17:20:36Ben Lindstrom
[auth-rsa.c auth.c auth.h auth2.c servconf.c servconf.h sshd.8 sshd_config] configurable authorized_keys{,2} location; originally from peter@; ok djm@
2001-06-05 - markus@cvs.openbsd.org 2001/05/18 14:13:29Ben Lindstrom
[auth-chall.c auth.h auth1.c auth2-chall.c auth2.c readconf.c readconf.h servconf.c servconf.h sshconnect1.c sshconnect2.c sshd.c] improved kbd-interactive support. work by per@appgate.com and me
2001-04-25 - (djm) Add new server configuration directive 'PAMAuthenticationViaKbdInt'Damien Miller
(default: off), implies KbdInteractiveAuthentication. Suggestion from markus@
2001-04-13 - beck@cvs.openbsd.org 2001/04/13 22:46:54Ben Lindstrom
[channels.c channels.h servconf.c servconf.h serverloop.c sshd.8] Add options ClientAliveInterval and ClientAliveCountMax to sshd. This gives the ability to do a "keepalive" via the encrypted channel which can't be spoofed (unlike TCP keepalives). Useful for when you want to use ssh connections to authenticate people for something, and know relatively quickly when they are no longer authenticated. Disabled by default (of course). ok markus@
2001-04-12 - markus@cvs.openbsd.org 2001/04/12 19:15:26Ben Lindstrom
[auth-rhosts.c auth.h auth2.c buffer.c canohost.c canohost.h compat.c compat.h hostfile.c pathnames.h readconf.c readconf.h servconf.c servconf.h ssh.c sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c sshd_config] implement HostbasedAuthentication (= RhostRSAAuthentication for ssh v2) similar to RhostRSAAuthentication unless you enable (the experimental) HostbasedUsesNameFromPacketOnly option. please test. :)
2001-03-26 - stevesk@cvs.openbsd.org 2001/03/25 13:16:11Ben Lindstrom
[servconf.c servconf.h session.c sshd.8 sshd_config] PrintLastLog option; from chip@valinux.com with some minor changes by me. ok markus@
2001-02-15 - markus@cvs.openbsd.org 2001/02/12 16:16:23Ben Lindstrom
[auth-passwd.c auth.c auth.h auth1.c auth2.c servconf.c servconf.h ssh-keygen.c sshd.8] PermitRootLogin={yes,without-password,forced-commands-only,no} (before this change, root could login even if PermitRootLogin==no)
2001-02-15 - markus@cvs.openbsd.org 2001/02/11 12:59:25Ben Lindstrom
[Makefile.in sshd.8 sshconnect2.c readconf.h readconf.c packet.c sshd.c ssh.c ssh.1 servconf.h servconf.c myproposal.h kex.h kex.c] 1) clean up the MAC support for SSH-2 2) allow you to specify the MAC with 'ssh -m' 3) or the 'MACs' keyword in ssh(d)_config 4) add hmac-{md5,sha1}-96 ok stevesk@, provos@