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2012-09-07* New upstream release (http://www.openssh.com/txt/release-6.1).Colin Watson
- Enable pre-auth sandboxing by default for new installs. - Allow "PermitOpen none" to refuse all port-forwarding requests (closes: #543683).
2012-09-06merge 6.1p1Colin Watson
2012-07-02 - naddy@cvs.openbsd.org 2012/06/29 13:57:25Darren Tucker
[ssh_config.5 sshd_config.5] match the documented MAC order of preference to the actual one; ok dtucker@
2012-06-30 - dtucker@cvs.openbsd.org 2012/06/28 05:07:45Damien Miller
[mac.c myproposal.h ssh_config.5 sshd_config.5] Remove hmac-sha2-256-96 and hmac-sha2-512-96 MACs since they were removed from draft6 of the spec and will not be in the RFC when published. Patch from mdb at juniper net via bz#2023, ok markus.
2012-06-20 - jmc@cvs.openbsd.org 2012/06/19 21:35:54Damien Miller
[sshd_config.5] tweak previous; ok markus
2012-06-20 - markus@cvs.openbsd.org 2012/06/19 18:25:28Damien Miller
[servconf.c servconf.h sshd_config.5] sshd_config: extend Match to allow AcceptEnv and {Allow,Deny}{Users,Groups} this allows 'Match LocalPort 1022' combined with 'AllowUser bauer' ok djm@ (back in March)
2012-05-19 - dtucker@cvs.openbsd.org 2012/05/19 06:30:30Darren Tucker
[sshd_config.5] Document PermitOpen none. bz#2001, patch from Loganaden Velvindron
2012-05-19- (dtucker) OpenBSD CVS SyncDarren Tucker
- dtucker@cvs.openbsd.org 2012/05/13 01:42:32 [servconf.h servconf.c sshd.8 sshd.c auth.c sshd_config.5] Add "Match LocalAddress" and "Match LocalPort" to sshd and adjust tests to match. Feedback and ok djm@ markus@.
2012-05-18* New upstream release (http://www.openssh.org/txt/release-6.0).Colin Watson
- Fix IPQoS not being set on non-mapped v4-in-v6 addressed connections (closes: #643312, #650512). - Add a new privilege separation sandbox implementation for Linux's new seccomp sandbox, automatically enabled on platforms that support it. (Note: privilege separation sandboxing is still experimental.)
2012-05-17merge 6.0p1Colin Watson
2012-04-22 - djm@cvs.openbsd.org 2012/04/12 02:43:55Damien Miller
[sshd_config sshd_config.5] mention AuthorizedPrincipalsFile=none default
2012-04-22 - djm@cvs.openbsd.org 2012/04/12 02:42:32Damien Miller
[servconf.c servconf.h sshd.c sshd_config sshd_config.5] VersionAddendum option to allow server operators to append some arbitrary text to the SSH-... banner; ok deraadt@ "don't care" markus@
2011-09-22 - djm@cvs.openbsd.org 2011/09/09 00:43:00Damien Miller
[ssh_config.5 sshd_config.5] fix typo in IPQoS parsing: there is no "AF14" class, but there is an "AF21" class. Spotted by giesen AT snickers.org; ok markus stevesk
2011-09-06* New upstream release (http://www.openssh.org/txt/release-5.9).Colin Watson
- Introduce sandboxing of the pre-auth privsep child using an optional sshd_config(5) "UsePrivilegeSeparation=sandbox" mode that enables mandatory restrictions on the syscalls the privsep child can perform. - Add new SHA256-based HMAC transport integrity modes from http://www.ietf.org/id/draft-dbider-sha2-mac-for-ssh-02.txt. - The pre-authentication sshd(8) privilege separation slave process now logs via a socket shared with the master process, avoiding the need to maintain /dev/log inside the chroot (closes: #75043, #429243, #599240). - ssh(1) now warns when a server refuses X11 forwarding (closes: #504757). - sshd_config(5)'s AuthorizedKeysFile now accepts multiple paths, separated by whitespace (closes: #76312). The authorized_keys2 fallback is deprecated but documented (closes: #560156). - ssh(1) and sshd(8): set IPv6 traffic class from IPQoS, as well as IPv4 ToS/DSCP (closes: #498297). - ssh-add(1) now accepts keys piped from standard input. E.g. "ssh-add - < /path/to/key" (closes: #229124). - Clean up lost-passphrase text in ssh-keygen(1) (closes: #444691). - Say "required" rather than "recommended" in unprotected-private-key warning (LP: #663455).
2011-09-06merge 5.9p1Colin Watson
2011-08-06 - djm@cvs.openbsd.org 2011/08/02 01:22:11Damien Miller
[mac.c myproposal.h ssh.1 ssh_config.5 sshd.8 sshd_config.5] Add new SHA256 and SHA512 based HMAC modes from http://www.ietf.org/id/draft-dbider-sha2-mac-for-ssh-02.txt Patch from mdb AT juniper.net; feedback and ok markus@
2011-06-23 - djm@cvs.openbsd.org 2011/06/22 21:57:01Damien Miller
[servconf.c servconf.h sshd.c sshd_config.5 sandbox-rlimit.c] [sandbox-systrace.c sandbox.h configure.ac Makefile.in] introduce sandboxing of the pre-auth privsep child using systrace(4). This introduces a new "UsePrivilegeSeparation=sandbox" option for sshd_config that applies mandatory restrictions on the syscalls the privsep child can perform. This prevents a compromised privsep child from being used to attack other hosts (by opening sockets and proxying) or probing local kernel attack surface. The sandbox is implemented using systrace(4) in unsupervised "fast-path" mode, where a list of permitted syscalls is supplied. Any syscall not on the list results in SIGKILL being sent to the privsep child. Note that this requires a kernel with the new SYSTR_POLICY_KILL option. UsePrivilegeSeparation=sandbox will become the default in the future so please start testing it now. feedback dtucker@; ok markus@
2011-05-29 - jmc@cvs.openbsd.org 2011/05/23 07:10:21Damien Miller
[sshd.8 sshd_config.5] tweak previous; ok djm
2011-05-29OpenBSD CVS SyncDamien Miller
- djm@cvs.openbsd.org 2011/05/23 03:30:07 [auth-rsa.c auth.c auth.h auth2-pubkey.c monitor.c monitor_wrap.c pathnames.h servconf.c servconf.h sshd.8 sshd_config sshd_config.5] allow AuthorizedKeysFile to specify multiple files, separated by spaces. Bring back authorized_keys2 as a default search path (to avoid breaking existing users of this file), but override this in sshd_config so it will be no longer used on fresh installs. Maybe in 2015 we can remove it entierly :) feedback and ok markus@ dtucker@
2011-01-24* New upstream release (http://www.openssh.org/txt/release-5.7):Colin Watson
- Implement Elliptic Curve Cryptography modes for key exchange (ECDH) and host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA offer better performance than plain DH and DSA at the same equivalent symmetric key length, as well as much shorter keys. - sftp(1)/sftp-server(8): add a protocol extension to support a hard link operation. It is available through the "ln" command in the client. The old "ln" behaviour of creating a symlink is available using its "-s" option or through the preexisting "symlink" command. - scp(1): Add a new -3 option to scp: Copies between two remote hosts are transferred through the local host (closes: #508613). - ssh(1): "atomically" create the listening mux socket by binding it on a temporary name and then linking it into position after listen() has succeeded. This allows the mux clients to determine that the server socket is either ready or stale without races (closes: #454784). Stale server sockets are now automatically removed (closes: #523250). - ssh(1): install a SIGCHLD handler to reap expired child process (closes: #594687). - ssh(1)/ssh-agent(1): honour $TMPDIR for client xauth and ssh-agent temporary directories (closes: #357469, although only if you arrange for ssh-agent to actually see $TMPDIR since the setgid bit will cause it to be stripped off).
2011-01-24merge 5.7p1Colin Watson
2010-12-26 - djm@cvs.openbsd.org 2010/12/08 04:02:47Damien Miller
[ssh_config.5 sshd_config.5] explain that IPQoS arguments are separated by whitespace; iirc requested by jmc@ a while back
2010-11-20 - jmc@cvs.openbsd.org 2010/11/18 15:01:00Damien Miller
[scp.1 sftp.1 ssh.1 sshd_config.5] add IPQoS to the various -o lists, and zap some trailing whitespace;
2010-11-20 - djm@cvs.openbsd.org 2010/11/13 23:27:51Damien Miller
[clientloop.c misc.c misc.h packet.c packet.h readconf.c readconf.h] [servconf.c servconf.h session.c ssh.c ssh_config.5 sshd_config.5] allow ssh and sshd to set arbitrary TOS/DSCP/QoS values instead of hardcoding lowdelay/throughput. bz#1733 patch from philipp AT redfish-solutions.com; ok markus@ deraadt@
2010-11-05 - jmc@cvs.openbsd.org 2010/10/28 18:33:28Damien Miller
[scp.1 ssh-add.1 ssh-keygen.1 ssh.1 ssh_config.5 sshd.8 sshd_config.5] knock out some "-*- nroff -*-" lines;
2010-09-24 - djm@cvs.openbsd.org 2010/09/22 05:01:30Damien Miller
[kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c readconf.c readconf.h] [servconf.c servconf.h ssh_config.5 sshconnect2.c sshd.c sshd_config.5] add a KexAlgorithms knob to the client and server configuration to allow selection of which key exchange methods are used by ssh(1) and sshd(8) and their order of preference. ok markus@
2010-08-31 - djm@cvs.openbsd.org 2010/08/31 11:54:45Damien Miller
[PROTOCOL PROTOCOL.agent PROTOCOL.certkeys auth2-jpake.c authfd.c] [authfile.c buffer.h dns.c kex.c kex.h key.c key.h monitor.c] [monitor_wrap.c myproposal.h packet.c packet.h pathnames.h readconf.c] [ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c] [ssh-keyscan.1 ssh-keyscan.c ssh-keysign.8 ssh.1 ssh.c ssh2.h] [ssh_config.5 sshconnect.c sshconnect2.c sshd.8 sshd.c sshd_config.5] [uuencode.c uuencode.h bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c] Implement Elliptic Curve Cryptography modes for key exchange (ECDH) and host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA offer better performance than plain DH and DSA at the same equivalent symmetric key length, as well as much shorter keys. Only the mandatory sections of RFC5656 are implemented, specifically the three REQUIRED curves nistp256, nistp384 and nistp521 and only ECDH and ECDSA. Point compression (optional in RFC5656 is NOT implemented). Certificate host and user keys using the new ECDSA key types are supported. Note that this code has not been tested for interoperability and may be subject to change. feedback and ok markus@
2010-08-23* New upstream release (http://www.openssh.com/txt/release-5.6):Colin Watson
- Added a ControlPersist option to ssh_config(5) that automatically starts a background ssh(1) multiplex master when connecting. This connection can stay alive indefinitely, or can be set to automatically close after a user-specified duration of inactivity (closes: #335697, #350898, #454787, #500573, #550262). - Support AuthorizedKeysFile, AuthorizedPrincipalsFile, HostbasedUsesNameFromPacketOnly, and PermitTunnel in sshd_config(5) Match blocks (closes: #549858). - sftp(1): fix ls in working directories that contain globbing characters in their pathnames (LP: #530714).
2010-08-23merge 5.6p1Colin Watson
2010-07-02 - jmc@cvs.openbsd.org 2010/06/30 07:28:34Damien Miller
[sshd_config.5] tweak previous;
2010-07-02 - djm@cvs.openbsd.org 2010/06/29 23:16:46Damien Miller
[auth2-pubkey.c sshd_config.5] allow key options (command="..." and friends) in AuthorizedPrincipals; ok markus@
2010-06-26 - djm@cvs.openbsd.org 2010/06/22 04:22:59Damien Miller
[servconf.c sshd_config.5] expose some more sshd_config options inside Match blocks: AuthorizedKeysFile AuthorizedPrincipalsFile HostbasedUsesNameFromPacketOnly PermitTunnel bz#1764; feedback from imorgan AT nas.nasa.gov; ok dtucker@
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@
2010-03-31Drop most of our "LogLevel SILENT" (-qq) patch. This was originallyColin Watson
introduced to match the behaviour of non-free SSH, in which -q does not suppress fatal errors, but matching the behaviour of OpenSSH upstream is much more important nowadays. We no longer document that -q does not suppress fatal errors (closes: #280609). Migrate "LogLevel SILENT" to "LogLevel QUIET" in sshd_config on upgrade.
2010-03-31* New upstream release (LP: #535029).Colin Watson
- After a transition period of about 10 years, this release disables SSH protocol 1 by default. Clients and servers that need to use the legacy protocol must explicitly enable it in ssh_config / sshd_config or on the command-line. - Remove the libsectok/OpenSC-based smartcard code and add support for PKCS#11 tokens. This support is enabled by default in the Debian packaging, since it now doesn't involve additional library dependencies (closes: #231472, LP: #16918). - Add support for certificate authentication of users and hosts using a new, minimal OpenSSH certificate format (closes: #482806). - Added a 'netcat mode' to ssh(1): "ssh -W host:port ...". - Add the ability to revoke keys in sshd(8) and ssh(1). (For the Debian package, this overlaps with the key blacklisting facility added in openssh 1:4.7p1-9, but with different file formats and slightly different scopes; for the moment, I've roughly merged the two.) - Various multiplexing improvements, including support for requesting port-forwardings via the multiplex protocol (closes: #360151). - Allow setting an explicit umask on the sftp-server(8) commandline to override whatever default the user has (closes: #496843). - Many sftp client improvements, including tab-completion, more options, and recursive transfer support for get/put (LP: #33378). The old mget/mput commands never worked properly and have been removed (closes: #270399, #428082). - Do not prompt for a passphrase if we fail to open a keyfile, and log the reason why the open failed to debug (closes: #431538). - Prevent sftp from crashing when given a "-" without a command. Also, allow whitespace to follow a "-" (closes: #531561).
2010-03-31merge 5.4p1Colin Watson
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@
2010-01-24* New upstream release.Colin Watson
* Update to GSSAPI patch from http://www.sxw.org.uk/computing/patches/openssh-5.3p1-gsskex-all-20100124.patch.
2010-01-24import openssh-5.3p1-gsskex-all-20100124.patchColin Watson
2010-01-16Implement DebianBanner server configuration flag that can be set to "no"Colin Watson
to allow sshd to run without the Debian-specific extra version in the initial protocol handshake (closes: #562048).
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;