[auth.c hostfile.c hostfile.h ssh.c ssh_config.5 sshconnect.c]
[sshconnect.h sshconnect2.c]
automatically order the hostkeys requested by the client based on
which hostkeys are already recorded in known_hosts. This avoids
hostkey warnings when connecting to servers with new ECDSA keys
that are preferred by default; with markus@
[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@
- 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@
[hostfile.c hostfile.h readconf.c readconf.h ssh.1 ssh_config.5]
[sshconnect.c sshd.8]
add support for hashing host names and addresses added to known_hosts
files, to improve privacy of which hosts user have been visiting; ok
markus@ deraadt@
[hostfile.c hostfile.h sshconnect.c]
print out all known keys for a host if we get a unknown host key,
see discussion at http://marc.theaimsgroup.com/?t=101069210100016&r=1&w=4
the ssharp mitm tool attacks users in a similar way, so i'd like to
pointed out again:
A MITM attack is always possible if the ssh client prints:
The authenticity of host 'bla' can't be established.
(protocol version 2 with pubkey authentication allows you to detect
MITM attacks)
- markus@cvs.openbsd.org 2000/11/06 16:04:56
[channels.c channels.h clientloop.c nchan.c serverloop.c]
[session.c ssh.c]
agent forwarding and -R for ssh2, based on work from
jhuuskon@messi.uku.fi
- markus@cvs.openbsd.org 2000/11/06 16:13:27
[ssh.c sshconnect.c sshd.c]
do not disabled rhosts(rsa) if server port > 1024; from
pekkas@netcore.fi
- markus@cvs.openbsd.org 2000/11/06 16:16:35
[sshconnect.c]
downgrade client to 1.3 if server is 1.4; help from mdb@juniper.net
- markus@cvs.openbsd.org 2000/11/09 18:04:40
[auth1.c]
typo; from mouring@pconline.com
- markus@cvs.openbsd.org 2000/11/12 12:03:28
[ssh-agent.c]
off-by-one when removing a key from the agent
- markus@cvs.openbsd.org 2000/11/12 12:50:39
[auth-rh-rsa.c auth2.c authfd.c authfd.h]
[authfile.c hostfile.c kex.c kex.h key.c key.h myproposal.h]
[readconf.c readconf.h rsa.c rsa.h servconf.c servconf.h ssh-add.c]
[ssh-agent.c ssh-keygen.1 ssh-keygen.c ssh.1 ssh.c ssh_config]
[sshconnect1.c sshconnect2.c sshd.8 sshd.c sshd_config ssh-dss.c]
[ssh-dss.h ssh-rsa.c ssh-rsa.h dsa.c dsa.h]
add support for RSA to SSH2. please test.
there are now 3 types of keys: RSA1 is used by ssh-1 only,
RSA and DSA are used by SSH2.
you can use 'ssh-keygen -t rsa -f ssh2_rsa_file' to generate RSA
keys for SSH2 and use the RSA keys for hostkeys or for user keys.
SSH2 RSA or DSA keys are added to .ssh/authorised_keys2 as before.
- (djm) Fix up Makefile and Redhat init script to create RSA host keys
- (djm) Change to interim version
- markus@cvs.openbsd.org 2000/09/05 02:59:57
[session.c]
print hostname (not hushlogin)
- markus@cvs.openbsd.org 2000/09/05 13:18:48
[authfile.c ssh-add.c]
enable ssh-add -d for DSA keys
- markus@cvs.openbsd.org 2000/09/05 13:20:49
[sftp-server.c]
cleanup
- markus@cvs.openbsd.org 2000/09/06 03:46:41
[authfile.h]
prototype
- deraadt@cvs.openbsd.org 2000/09/07 14:27:56
[ALL]
cleanup copyright notices on all files. I have attempted to be
accurate with the details. everything is now under Tatu's licence
(which I copied from his readme), and/or the core-sdi bsd-ish thing
for deattack, or various openbsd developers under a 2-term bsd
licence. We're not changing any rules, just being accurate.
- markus@cvs.openbsd.org 2000/09/07 14:40:30
[channels.c channels.h clientloop.c serverloop.c ssh.c]
cleanup window and packet sizes for ssh2 flow control; ok niels
- markus@cvs.openbsd.org 2000/09/07 14:53:00
[scp.c]
typo
- markus@cvs.openbsd.org 2000/09/07 15:13:37
[auth-options.c auth-options.h auth-rh-rsa.c auth-rsa.c auth.c]
[authfile.h canohost.c channels.h compat.c hostfile.h log.c match.h]
[pty.c readconf.c]
some more Copyright fixes
- markus@cvs.openbsd.org 2000/09/08 03:02:51
[README.openssh2]
bye bye
- deraadt@cvs.openbsd.org 2000/09/11 18:38:33
[LICENCE cipher.c]
a few more comments about it being ARC4 not RC4
- markus@cvs.openbsd.org 2000/09/12 14:53:11
[log-client.c log-server.c log.c ssh.1 ssh.c ssh.h sshd.8 sshd.c]
multiple debug levels
- markus@cvs.openbsd.org 2000/09/14 14:25:15
[clientloop.c]
typo
- deraadt@cvs.openbsd.org 2000/09/15 01:13:51
[ssh-agent.c]
check return value for setenv(3) for failure, and deal appropriately
<tibbs@math.uh.edu>
- (djm) OpenBSD CVS updates:
- todd@cvs.openbsd.org
[sshconnect2.c]
teach protocol v2 to count login failures properly and also enable an
explanation of why the password prompt comes up again like v1; this is NOT
crypto
- markus@cvs.openbsd.org
[readconf.c readconf.h servconf.c servconf.h session.c ssh.1 ssh.c sshd.8]
xauth_location support; pr 1234
[readconf.c sshconnect2.c]
typo, unused
[session.c]
allow use_login only for login sessions, otherwise remote commands are
execed with uid==0
[sshd.8]
document UseLogin better
[version.h]
OpenSSH 2.1.1
[auth-rsa.c]
fix match_hostname() logic for auth-rsa: deny access if we have a
negative match or no match at all
[channels.c hostfile.c match.c]
don't panic if mkdtemp fails for authfwd; jkb@yahoo-inc.com via
kris@FreeBSD.org
- All OpenSSL includes are now unconditionally referenced as
openssl/foo.h
- Pick up formatting changes
- Other minor changed (typecasts, etc) that I missed
[ssh.h atomicio.c]
- int atomicio -> ssize_t (for alpha). ok deraadt@
[auth-rsa.c]
- delay MD5 computation until client sends response, free() early, cleanup.
[cipher.c]
- void* -> unsigned char*, ok niels@
[hostfile.c]
- remove unused variable 'len'. fix comments.
- remove unused variable
[log-client.c log-server.c]
- rename a cpp symbol, to avoid param.h collision
[packet.c]
- missing xfree()
- getsockname() requires initialized tolen; andy@guildsoftware.com
- use getpeername() in packet_connection_is_on_socket(), fixes sshd -i;
from Holger.Trapp@Informatik.TU-Chemnitz.DE
[pty.c pty.h]
- register cleanup for pty earlier. move code for pty-owner handling to
pty.c ok provos@, dugsong@
[readconf.c]
- turn off x11-fwd for the client, too.
[rsa.c]
- PKCS#1 padding
[scp.c]
- allow '.' in usernames; from jedgar@fxp.org
[servconf.c]
- typo: ignore_user_known_hosts int->flag; naddy@mips.rhein-neckar.de
- sync with sshd_config
[ssh-keygen.c]
- enable ssh-keygen -l -f ~/.ssh/known_hosts, ok deraadt@
[ssh.1]
- Change invalid 'CHAT' loglevel to 'VERBOSE'
[ssh.c]
- suppress AAAA query host when '-4' is used; from shin@nd.net.fujitsu.co.jp
- turn off x11-fwd for the client, too.
[sshconnect.c]
- missing xfree()
- retry rresvport_af(), too. from sumikawa@ebina.hitachi.co.jp.
- read error vs. "Connection closed by remote host"
[sshd.8]
- ie. -> i.e.,
- do not link to a commercial page..
- sync with sshd_config
[sshd.c]
- no need for poll.h; from bright@wintelcom.net
- log with level log() not fatal() if peer behaves badly.
- don't panic if client behaves strange. ok deraadt@
- make no-port-forwarding for RSA keys deny both -L and -R style fwding
- delay close() of pty until the pty has been chowned back to root
- oops, fix comment, too.
- missing xfree()
- move XAUTHORITY to subdir. ok dugsong@. fixes debian bug #57907, too.
(http://cgi.debian.org/cgi-bin/bugreport.cgi?archive=no&bug=57907)
- register cleanup for pty earlier. move code for pty-owner handling to
pty.c ok provos@, dugsong@
- create x11 cookie file
- fix pr 1113, fclose() -> pclose(), todo: remote popen()
- version 1.2.3
- Cleaned up
- [sshd.c sshd.8 sshconnect.c ssh.h ssh.c servconf.h servconf.c scp.1]
[scp.c packet.h packet.c login.c log.c canohost.c channels.c]
[hostfile.c sshd_config]
ipv6 support: mostly gethostbyname->getaddrinfo/getnameinfo, new
features: sshd allows multiple ListenAddress and Port options. note
that libwrap is not IPv6-ready. (based on patches from
fujiwara@rcac.tdi.co.jp)
- [ssh.c canohost.c]
more hints (hints.ai_socktype=SOCK_STREAM) for getaddrinfo,
from itojun@
- [channels.c]
listen on _all_ interfaces for X11-Fwd (hints.ai_flags = AI_PASSIVE)
- [packet.h]
allow auth-kerberos for IPv4 only
- [scp.1 sshd.8 servconf.h scp.c]
document -4, -6, and 'ssh -L 2022/::1/22'
- [ssh.c]
'ssh @host' is illegal (null user name), from
karsten@gedankenpolizei.de
- [sshconnect.c]
better error message
- [sshd.c]
allow auth-kerberos for IPv4 only
- Big IPv6 merge:
- Cleanup overrun in sockaddr copying on RHL 6.1
- Replacements for getaddrinfo, getnameinfo, etc based on versions
from patch from KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
- Replacement for missing structures on systems that lack IPv6
- record_login needed to know about AF_INET6 addresses
- Borrowed more code from OpenBSD: rresvport_af and requisites
- [auth-krb4.c auth-passwd.c auth-skey.c ssh.
move skey-auth from auth-passwd.c to auth-s
- [auth-rsa.c]
warn only about mismatch if key is _used_
warn about keysize-mismatch with log() not
channels.c readconf.c readconf.h ssh.c ssh.
ports are u_short
- [hostfile.c]
indent, shorter warning
- [nchan.c]
use error() for internal errors
- [packet.c]
set loglevel for SSH_MSG_DISCONNECT to log(
serverloop.c
indent
- [ssh-add.1 ssh-add.c ssh.h]
document , reasonable default
- [ssh.1]
CheckHostIP is not available for connects v
- [sshconnect.c]
typo
easier to read client code for passwd and s
turn of checkhostip for proxy connects, sin
- Merged OpenBSD CVS changes:
- [channels.c]
report from mrwizard@psu.edu via djm@ibs.com.au
- [channels.c]
set SO_REUSEADDR and SO_LINGER for forwarded ports.
chip@valinux.com via damien@ibs.com.au
- [nchan.c]
it's not an error() if shutdown_write failes in nchan.
- [readconf.c]
remove dead #ifdef-0-code
- [readconf.c servconf.c]
strcasecmp instead of tolower
- [scp.c]
progress meter overflow fix from damien@ibs.com.au
- [ssh-add.1 ssh-add.c]
SSH_ASKPASS support
- [ssh.1 ssh.c]
postpone fork_after_authentication until command execution,
request/patch from jahakala@cc.jyu.fi via damien@ibs.com.au
plus: use daemon() for backgrounding
- OpenBSD CVS updates
- [channels.c cipher.c compat.c log-client.c scp.c serverloop.c]
[ssh.h sshd.8 sshd.c]
syslog changes:
* Unified Logmessage for all auth-types, for success and for failed
* Standard connections get only ONE line in the LOG when level==LOG:
Auth-attempts are logged only, if authentication is:
a) successfull or
b) with passwd or
c) we had more than AUTH_FAIL_LOG failues
* many log() became verbose()
* old behaviour with level=VERBOSE
- [readconf.c readconf.h ssh.1 ssh.h sshconnect.c sshd.c]
tranfer s/key challenge/response data in SSH_SMSG_AUTH_TIS_CHALLENGE
messages. allows use of s/key in windows (ttssh, securecrt) and
ssh-1.2.27 clients without 'ssh -v', ok: niels@
- [sshd.8]
-V, for fallback to openssh in SSH2 compatibility mode
- [sshd.c]
fix sigchld race; cjc5@po.cwru.edu
- [ChangeLog.Ylonen] noone needs this anymore
- [authfd.c] close-on-exec for auth-socket, ok deraadt
- [hostfile.c]
in known_hosts key lookup the entry for the bits does not need
to match, all the information is contained in n and e. This
solves the problem with buggy servers announcing the wrong
modulus length. markus and me.
- [serverloop.c]
bugfix: check for space if child has terminated, from:
iedowse@maths.tcd.ie
- [ssh-add.1 ssh-add.c ssh-keygen.1 ssh-keygen.c sshconnect.c]
[fingerprint.c fingerprint.h]
rsa key fingerprints, idea from Bjoern Groenvall <bg@sics.se>
- [ssh-agent.1] typo
- [ssh.1] add OpenSSH information to AUTHOR section. okay markus@
- [sshd.c]
force logging to stderr while loading private key file
(lost while converting to new log-levels)
- [auth-rh-rsa.c auth-rsa.c authfd.c authfd.h hostfile.c mpaux.c]
[mpaux.h ssh-add.c ssh-agent.c ssh.h ssh.c sshd.c]
the keysize of rsa-parameter 'n' is passed implizit,
a few more checks and warnings about 'pretended' keysizes.
- [cipher.c cipher.h packet.c packet.h sshd.c]
remove support for cipher RC4
- [ssh.c]
a note for legay systems about secuity issues with permanently_set_uid(),
the private hostkey and ptrace()
- [sshconnect.c]
more detailed messages about adding and checking hostkeys
Darren Tucker
Damien Miller
Ben Lindstrom