| Age | Commit message (Collapse) | Author |
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- 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).
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[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@
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backported to 4.7p1:
- 4.9/4.9p1 (http://www.openssh.com/txt/release-4.9):
+ Added chroot(2) support for sshd(8), controlled by a new option
"ChrootDirectory" (closes: #139047, LP: #24777).
+ Linked sftp-server(8) into sshd(8). The internal sftp server is used
when the command "internal-sftp" is specified in a Subsystem or
ForceCommand declaration. When used with ChrootDirectory, the
internal sftp server requires no special configuration of files
inside the chroot environment.
+ Added a protocol extension method "posix-rename@openssh.com" for
sftp-server(8) to perform POSIX atomic rename() operations; sftp(1)
prefers this if available (closes: #308561).
+ Removed the fixed limit of 100 file handles in sftp-server(8).
+ ssh(8) will now skip generation of SSH protocol 1 ephemeral server
keys when in inetd mode and protocol 2 connections are negotiated.
This speeds up protocol 2 connections to inetd-mode servers that
also allow Protocol 1.
+ Accept the PermitRootLogin directive in a sshd_config(5) Match
block. Allows for, e.g. permitting root only from the local network.
+ Reworked sftp(1) argument splitting and escaping to be more
internally consistent (i.e. between sftp commands) and more
consistent with sh(1). Please note that this will change the
interpretation of some quoted strings, especially those with
embedded backslash escape sequences.
+ Support "Banner=none" in sshd_config(5) to disable sending of a
pre-login banner (e.g. in a Match block).
+ ssh(1) ProxyCommands are now executed with $SHELL rather than
/bin/sh.
+ ssh(1)'s ConnectTimeout option is now applied to both the TCP
connection and the SSH banner exchange (previously it just covered
the TCP connection). This allows callers of ssh(1) to better detect
and deal with stuck servers that accept a TCP connection but don't
progress the protocol, and also makes ConnectTimeout useful for
connections via a ProxyCommand.
+ scp(1) incorrectly reported "stalled" on slow copies (closes:
#140828).
+ scp(1) date underflow for timestamps before epoch.
+ ssh(1) used the obsolete SIG DNS RRtype for host keys in DNS,
instead of the current standard RRSIG.
+ Correctly drain ACKs when a sftp(1) upload write fails midway,
avoids a fatal() exit from what should be a recoverable condition.
+ Fixed ssh-keygen(1) selective host key hashing (i.e. "ssh-keygen -HF
hostname") to not include any IP address in the data to be hashed.
+ Make ssh(1) skip listening on the IPv6 wildcard address when a
binding address of 0.0.0.0 is used against an old SSH server that
does not support the RFC4254 syntax for wildcard bind addresses.
+ Enable IPV6_V6ONLY socket option on sshd(8) listen socket, as is
already done for X11/TCP forwarding sockets (closes: #439661).
+ Fix FD leak that could hang a ssh(1) connection multiplexing master.
+ Make ssh(1) -q option documentation consistent with reality.
+ Fixed sshd(8) PAM support not calling pam_session_close(), or
failing to call it with root privileges (closes: #372680).
+ Fix activation of OpenSSL engine support when requested in configure
(LP: #119295).
- 5.1/5.1p1 (http://www.openssh.com/txt/release-5.1):
+ Introduce experimental SSH Fingerprint ASCII Visualisation to ssh(1)
and ssh-keygen(1). Visual fingerprint display is controlled by a new
ssh_config(5) option "VisualHostKey". The intent is to render SSH
host keys in a visual form that is amenable to easy recall and
rejection of changed host keys.
+ sshd_config(5) now supports CIDR address/masklen matching in "Match
address" blocks, with a fallback to classic wildcard matching.
+ sshd(8) now supports CIDR matching in ~/.ssh/authorized_keys
from="..." restrictions, also with a fallback to classic wildcard
matching.
+ Added an extended test mode (-T) to sshd(8) to request that it write
its effective configuration to stdout and exit. Extended test mode
also supports the specification of connection parameters (username,
source address and hostname) to test the application of
sshd_config(5) Match rules.
+ ssh(1) now prints the number of bytes transferred and the overall
connection throughput for SSH protocol 2 sessions when in verbose
mode (previously these statistics were displayed for protocol 1
connections only).
+ sftp-server(8) now supports extension methods statvfs@openssh.com
and fstatvfs@openssh.com that implement statvfs(2)-like operations.
+ sftp(1) now has a "df" command to the sftp client that uses the
statvfs@openssh.com to produce a df(1)-like display of filesystem
space and inode utilisation (requires statvfs@openssh.com support on
the server).
+ Added a MaxSessions option to sshd_config(5) to allow control of the
number of multiplexed sessions supported over a single TCP
connection. This allows increasing the number of allowed sessions
above the previous default of 10, disabling connection multiplexing
(MaxSessions=1) or disallowing login/shell/subsystem sessions
entirely (MaxSessions=0).
+ Added a no-more-sessions@openssh.com global request extension that
is sent from ssh(1) to sshd(8) when the client knows that it will
never request another session (i.e. when session multiplexing is
disabled). This allows a server to disallow further session requests
and terminate the session in cases where the client has been
hijacked.
+ ssh-keygen(1) now supports the use of the -l option in combination
with -F to search for a host in ~/.ssh/known_hosts and display its
fingerprint.
+ ssh-keyscan(1) now defaults to "rsa" (protocol 2) keys, instead of
"rsa1".
+ Added an AllowAgentForwarding option to sshd_config(8) to control
whether authentication agent forwarding is permitted. Note that this
is a loose control, as a client may install their own unofficial
forwarder.
+ ssh(1) and sshd(8): avoid unnecessary malloc/copy/free when
receiving network data, resulting in a ~10% speedup.
+ ssh(1) and sshd(8) will now try additional addresses when connecting
to a port forward destination whose DNS name resolves to more than
one address. The previous behaviour was to try the only first
address and give up if that failed.
+ ssh(1) and sshd(8) now support signalling that channels are
half-closed for writing, through a channel protocol extension
notification "eow@openssh.com". This allows propagation of closed
file descriptors, so that commands such as "ssh -2 localhost od
/bin/ls | true" do not send unnecessary data over the wire.
+ sshd(8): increased the default size of ssh protocol 1 ephemeral keys
from 768 to 1024 bits.
+ When ssh(1) has been requested to fork after authentication ("ssh
-f") with ExitOnForwardFailure enabled, delay the fork until after
replies for any -R forwards have been seen. Allows for robust
detection of -R forward failure when using -f.
+ "Match group" blocks in sshd_config(5) now support negation of
groups. E.g. "Match group staff,!guests".
+ sftp(1) and sftp-server(8) now allow chmod-like operations to set
set[ug]id/sticky bits.
+ The MaxAuthTries option is now permitted in sshd_config(5) match
blocks.
+ Multiplexed ssh(1) sessions now support a subset of the ~ escapes
that are available to a primary connection.
+ ssh(1) connection multiplexing will now fall back to creating a new
connection in most error cases (closes: #352830).
+ Make ssh(1) deal more gracefully with channel requests that fail.
Previously it would optimistically assume that requests would always
succeed, which could cause hangs if they did not (e.g. when the
server runs out of file descriptors).
+ ssh(1) now reports multiplexing errors via the multiplex slave's
stderr where possible (subject to LogLevel in the mux master).
+ Prevent sshd(8) from erroneously applying public key restrictions
leaned from ~/.ssh/authorized_keys to other authentication methods
when public key authentication subsequently fails (LP: #161047).
+ Fixed an UMAC alignment problem that manifested on Itanium
platforms.
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[auth2-hostbased.c]
strip trailing '.' from hostname when HostbasedUsesNameFromPacketOnly=yes
report and patch from res AT qoxp.net (bz#1200); ok markus@
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reject_blacklisted_key function in auth.c (thanks, Dmitry V. Levin).
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#481721).
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- 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.)
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[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")
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[atomicio.c auth-options.c auth-passwd.c auth-rhosts.c auth-rsa.c]
[auth.c auth1.c auth2-chall.c auth2-hostbased.c auth2-passwd.c auth2.c]
[authfd.c authfile.c bufaux.c bufbn.c buffer.c canohost.c channels.c]
[cipher-3des1.c cipher-bf1.c cipher-ctr.c cipher.c clientloop.c]
[compat.c deattack.c dh.c dns.c gss-genr.c gss-serv.c hostfile.c]
[includes.h kex.c kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c log.c]
[mac.c match.c md-sha256.c misc.c moduli.c monitor.c monitor_fdpass.c]
[monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c rsa.c]
[progressmeter.c readconf.c readpass.c scp.c servconf.c serverloop.c]
[session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c sftp.c]
[ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
[ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c sshconnect2.c]
[sshd.c sshlogin.c sshpty.c ttymodes.c uidswap.c xmalloc.c]
move #include <string.h> out of includes.h
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[auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c]
[auth-rhosts.c auth-rsa.c auth.c auth.h auth2-hostbased.c]
[auth2-pubkey.c auth2.c includes.h misc.c misc.h monitor.c]
[monitor_wrap.c monitor_wrap.h scp.c serverloop.c session.c]
[session.h sftp-common.c ssh-add.c ssh-keygen.c ssh-keysign.c]
[ssh.c sshconnect.c sshconnect.h sshd.c sshpty.c sshpty.h uidswap.c]
[uidswap.h]
move #include <pwd.h> out of includes.h; ok markus@
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[atomicio.c auth-bsdauth.c auth-chall.c auth-options.c auth-passwd.c]
[auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth-skey.c auth.c auth1.c]
[auth2-chall.c auth2-hostbased.c auth2-kbdint.c auth2-none.c]
[auth2-passwd.c auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c]
[buffer.c canohost.c channels.c 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 fatal.c groupaccess.c hostfile.c kex.c]
[kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c]
[mac.c match.c md-sha256.c misc.c monitor.c monitor_fdpass.c]
[monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c progressmeter.c]
[readconf.c readpass.c rsa.c scard.c scp.c servconf.c serverloop.c]
[session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c]
[sftp.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
[ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
[sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
[uidswap.c uuencode.c xmalloc.c]
Put $OpenBSD$ tags back (as comments) to replace the RCSID()s that
Theo nuked - our scripts to sync -portable need them in the files
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[atomicio.c auth-bsdauth.c auth-chall.c auth-krb5.c auth-options.c]
[auth-pam.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c]
[auth-shadow.c auth-skey.c auth.c auth1.c auth2-chall.c]
[auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c]
[auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c buffer.c]
[canohost.c channels.c cipher-3des1.c cipher-acss.c cipher-aes.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 entropy.c fatal.c]
[groupaccess.c hostfile.c includes.h kex.c kexdh.c kexdhc.c]
[kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c loginrec.c]
[loginrec.h logintest.c mac.c match.c md-sha256.c md5crypt.c misc.c]
[monitor.c monitor_fdpass.c monitor_mm.c monitor_wrap.c msg.c]
[nchan.c packet.c progressmeter.c readconf.c readpass.c rsa.c]
[scard.c scp.c servconf.c serverloop.c session.c sftp-client.c]
[sftp-common.c sftp-glob.c sftp-server.c sftp.c ssh-add.c]
[ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
[ssh-rand-helper.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
[sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
[uidswap.c uuencode.c xmalloc.c openbsd-compat/bsd-arc4random.c]
[openbsd-compat/bsd-closefrom.c openbsd-compat/bsd-cygwin_util.c]
[openbsd-compat/bsd-getpeereid.c openbsd-compat/bsd-misc.c]
[openbsd-compat/bsd-nextstep.c openbsd-compat/bsd-snprintf.c]
[openbsd-compat/bsd-waitpid.c openbsd-compat/fake-rfc2553.c]
RCSID() can die
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[auth2-hostbased.c auth2-pubkey.c serverloop.c ssh-keysign.c sshconnect2.c]
fix mem leaks; some fixes from Pete Flugstad; tested dtucker@
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[auth2-hostbased.c auth2-pubkey.c auth2.c channels.c key.c key.h
monitor.c packet.c packet.h serverloop.c sshconnect2.c sshd.c]
int -> u_int; ok djm@, deraadt@, mouring@
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- 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
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[auth.h auth2.c auth2-hostbased.c auth2-kbdint.c auth2-none.c
auth2-passwd.c auth2-pubkey.c Makefile.in]
split auth2.c into one file per method; ok provos@/deraadt@
NOTE: Merged back noticable cygwin and pam stuff. May need review to
ensure I did not miss anything.
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