Changes from OpenSSH 5.0 is huge to write here, please refer its
release note: http://www.openssh.com/txt/release-5.1.
I quote only Security section from the release note.
Security:
* sshd(8): Avoid X11 man-in-the-middle attack on HP/UX (and possibly
other platforms) when X11UseLocalhost=no
When attempting to bind(2) to a port that has previously been bound
with SO_REUSEADDR set, most operating systems check that either the
effective user-id matches the previous bind (common on BSD-derived
systems) or that the bind addresses do not overlap (Linux and
Solaris).
Some operating systems, such as HP/UX, do not perform these checks
and are vulnerable to an X11 man-in-the-middle attack when the
sshd_config(5) option X11UseLocalhost has been set to "no" - an
attacker may establish a more-specific bind, which will be used in
preference to sshd's wildcard listener.
Modern BSD operating systems, Linux, OS X and Solaris implement the
above checks and are not vulnerable to this attack, nor are systems
where the X11UseLocalhost has been left at the default value of
"yes".
Portable OpenSSH 5.1 avoids this problem for all operating systems
by not setting SO_REUSEADDR when X11UseLocalhost is set to no.
This vulnerability was reported by sway2004009 AT hotmail.com.
And always is defined as share/examples/rc.d
which was the default before.
This rc.d scripts are not automatically added to PLISTs now also.
So add to each corresponding PLIST as required.
This was discussed on tech-pkg in late January and late April.
Todo: remove the RCD_SCRIPTS_EXAMPLEDIR uses in MESSAGES and elsewhere
and remove the RCD_SCRIPTS_EXAMPLEDIR itself.
the RCD_SCRIPTS rc.d script(s) to the PLIST.
This GENERATE_PLIST idea is part of Greg A. Woods'
PR #22954.
This helps when the RC_SCRIPTS are installed to
a different ${RCD_SCRIPTS_EXAMPLEDIR}. (Later,
the default RCD_SCRIPTS_EXAMPLEDIR will be changed
to be more clear that they are the examples.)
These patches also remove the etc/rc.d/ scripts from PLISTs
(of packages that use RCD_SCRIPTS). (This also removes
now unused references from openssh* makefiles. Note that
qmail package has not been changed yet.)
I have been doing automatic PLIST registration for RC_SCRIPTS
for over a year. Not all of these packages have been tested,
but many have been tested and used.
Somethings maybe to do:
- a few packages still manually install the rc.d scripts to
hard-coded etc/rc.d. These need to be fixed.
- maybe remove from mk/${OPSYS}.pkg.dist mtree specifications too.
installs the binaries directly in /usr and places the manpages and example
files in the correct hier(7) locations. We don't register installation in
this case because the package database can't handle it. We deal with the
ssh config files and directories as follows:
NetBSD-1.5.* use /etc/ssh_config, /etc/sshd_config
NetBSD-1.6 use /etc/ssh/ssh_config, /etc/ssh/sshd_config
We also emit a warning in the MESSAGE file that /etc/ssh.conf and
/etc/sshd.conf should be renamed in order to keep using them. Lastly,
there is a new target "tarball" to generate a tarball of the installed
files that might be used to install quickly on many machines, though it
may be only of limited utility.
These changes are only active if UPDATE_INTREE_OPENSSH is defined.
Remove `-p' from mkdir arguments, it is already part of ${MKDIR}.
While here substitute a couple of ${PREFIX} by `%D' in
`@exec ${MKDIR} ...' lines and add a couple of missing `%D' in such lines too!
(the following change may include pre-3.2.3p1 change)
20020622
- (djm) Update README.privsep; spotted by fries@
- (djm) Release 3.3p1
20020621
- (djm) Sync:
- djm@cvs.openbsd.org 2002/06/21 05:50:51
[monitor.c]
Don't initialise compression buffers when compression=no in sshd_config;
ok Niels@
- ID sync for auth-passwd.c
- (djm) Warn and disable compression on platforms which can't handle both
useprivilegeseparation=yes and compression=yes
- (djm) contrib/redhat/openssh.spec hacking:
- Merge in spec changes from seba@iq.pl (Sebastian Pachuta)
- Add new {ssh,sshd}_config.5 manpages
- Add new ssh-keysign program and remove setuid from ssh client
20020620
- (bal) Fixed AIX environment handling, use setpcred() instead of existing
code. (Bugzilla Bug 261)
- (bal) OpenBSD CVS Sync
- todd@cvs.openbsd.org 2002/06/14 21:35:00
[monitor_wrap.c]
spelling; from Brian Poole <raj@cerias.purdue.edu>
- markus@cvs.openbsd.org 2002/06/15 00:01:36
[authfd.c authfd.h ssh-add.c ssh-agent.c]
break agent key lifetime protocol and allow other contraints for key
usage.
- markus@cvs.openbsd.org 2002/06/15 00:07:38
[authfd.c authfd.h ssh-add.c ssh-agent.c]
fix stupid typo
- markus@cvs.openbsd.org 2002/06/15 01:27:48
[authfd.c authfd.h ssh-add.c ssh-agent.c]
remove the CONSTRAIN_IDENTITY messages and introduce a new
ADD_ID message with contraints instead. contraints can be
only added together with the private key.
- itojun@cvs.openbsd.org 2002/06/16 21:30:58
[ssh-keyscan.c]
use TAILQ_xx macro. from lukem@netbsd. markus ok
- deraadt@cvs.openbsd.org 2002/06/17 06:05:56
[scp.c]
make usage like man page
- deraadt@cvs.openbsd.org 2002/06/19 00:27:55
[auth-bsdauth.c auth-skey.c auth1.c auth2-chall.c auth2-none.c authfd.c
authfd.h monitor_wrap.c msg.c nchan.c radix.c readconf.c scp.c sftp.1
ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c
ssh-keysign.c ssh.1 sshconnect.c sshconnect.h sshconnect2.c ttymodes.c
xmalloc.h]
KNF done automatically while reading....
- markus@cvs.openbsd.org 2002/06/19 18:01:00
[cipher.c monitor.c monitor_wrap.c packet.c packet.h]
make the monitor sync the transfer ssh1 session key;
transfer keycontext only for RC4 (this is still depends on EVP
implementation details and is broken).
- stevesk@cvs.openbsd.org 2002/06/20 19:56:07
[ssh.1 sshd.8]
move configuration file options from ssh.1/sshd.8 to
ssh_config.5/sshd_config.5; ok deraadt@ millert@
- stevesk@cvs.openbsd.org 2002/06/20 20:00:05
[scp.1 sftp.1]
ssh_config(5)
- stevesk@cvs.openbsd.org 2002/06/20 20:03:34
[ssh_config sshd_config]
refer to config file man page
- markus@cvs.openbsd.org 2002/06/20 23:05:56
[servconf.c servconf.h session.c sshd.c]
allow Compression=yes/no in sshd_config
- markus@cvs.openbsd.org 2002/06/20 23:37:12
[sshd_config]
add Compression
- stevesk@cvs.openbsd.org 2002/05/25 20:40:08
[LICENCE]
missed Per Allansson (auth2-chall.c)
- (bal) Cygwin special handling of empty passwords wrong. Patch by
vinschen@redhat.com
- (bal) Missed integrating ssh_config.5 and sshd_config.5
- (bal) Still more Makefile.in updates for ssh{d}_config.5
20020613
- (bal) typo of setgroup for cygwin. Patch by vinschen@redhat.com
20020612
- (bal) OpenBSD CVS Sync
- markus@cvs.openbsd.org 2002/06/11 23:03:54
[ssh.c]
remove unused cruft.
- markus@cvs.openbsd.org 2002/06/12 01:09:52
[ssh.c]
ssh_connect returns 0 on success
- (bal) Build noop setgroups() for cygwin to clean up code (For other
platforms without the setgroups() requirement, you MUST define
SETGROUPS_NOOP in the configure.ac) Based on patch by vinschen@redhat.com
- (bal) Some platforms don't have ONLCR (Notable Mint)
20020611
- (bal) ssh-agent.c RCSD fix (|unexpand already done)
- (bal) OpenBSD CVS Sync
- stevesk@cvs.openbsd.org 2002/06/09 22:15:15
[ssh.1]
update for no setuid root and ssh-keysign; ok deraadt@
- itojun@cvs.openbsd.org 2002/06/09 22:17:21
[sshconnect.c]
pass salen to sockaddr_ntop so that we are happy on linux/solaris
- stevesk@cvs.openbsd.org 2002/06/10 16:53:06
[auth-rsa.c ssh-rsa.c]
display minimum RSA modulus in error(); ok markus@
- stevesk@cvs.openbsd.org 2002/06/10 16:56:30
[ssh-keysign.8]
merge in stuff from my man page; ok markus@
- stevesk@cvs.openbsd.org 2002/06/10 17:36:23
[ssh-add.1 ssh-add.c]
use convtime() to parse and validate key lifetime. can now
use '-t 2h' etc. ok markus@ provos@
- stevesk@cvs.openbsd.org 2002/06/10 17:45:20
[readconf.c ssh.1]
change RhostsRSAAuthentication and RhostsAuthentication default to no
since ssh is no longer setuid root by default; ok markus@
- stevesk@cvs.openbsd.org 2002/06/10 21:21:10
[ssh_config]
update defaults for RhostsRSAAuthentication and RhostsAuthentication
here too (all options commented out with default value).
- markus@cvs.openbsd.org 2002/06/10 22:28:41
[channels.c channels.h session.c]
move creation of agent socket to session.c; no need for uidswapping
in channel.c.
- markus@cvs.openbsd.org 2002/06/11 04:14:26
[ssh.c sshconnect.c sshconnect.h]
no longer use uidswap.[ch] from the ssh client
run less code with euid==0 if ssh is installed setuid root
just switch the euid, don't switch the complete set of groups
(this is only needed by sshd). ok provos@
- mpech@cvs.openbsd.org 2002/06/11 05:46:20
[auth-krb4.c monitor.h serverloop.c session.c ssh-agent.c sshd.c]
pid_t cleanup. Markus need this now to keep hacking.
markus@, millert@ ok
- itojun@cvs.openbsd.org 2002/06/11 08:11:45
[canohost.c]
use "ntop" only after initialized
- (bal) Cygwin fix up from swap uid clean up in ssh.c patch by
vinschen@redhat.com
20020609
- (bal) OpenBSD CVS Sync
- markus@cvs.openbsd.org 2002/06/08 05:07:56
[ssh.c]
nuke ptrace comment
- markus@cvs.openbsd.org 2002/06/08 05:07:09
[ssh-keysign.c]
only accept 20 byte session ids
- markus@cvs.openbsd.org 2002/06/08 05:17:01
[readconf.c readconf.h ssh.1 ssh.c]
deprecate FallBackToRsh and UseRsh; patch from djm@
- markus@cvs.openbsd.org 2002/06/08 05:40:01
[readconf.c]
just warn about Deprecated options for now
- markus@cvs.openbsd.org 2002/06/08 05:41:18
[ssh_config]
remove FallBackToRsh/UseRsh
- markus@cvs.openbsd.org 2002/06/08 12:36:53
[scp.c]
remove FallBackToRsh
- markus@cvs.openbsd.org 2002/06/08 12:46:14
[readconf.c]
silently ignore deprecated options, since FallBackToRsh might be passed
by remote scp commands.
- itojun@cvs.openbsd.org 2002/06/08 21:15:27
[sshconnect.c]
always use getnameinfo. (diag message only)
- markus@cvs.openbsd.org 2002/06/09 04:33:27
[sshconnect.c]
abort() - > fatal()
- (bal) RCSID tag updates on channels.c, clientloop.c, nchan.c,
sftp-client.c, ssh-agenet.c, ssh-keygen.c and connect.h (we did unexpand
independant of them)
20020607
- (bal) Removed --{enable/disable}-suid-ssh
- (bal) Missed __progname in ssh-keysign.c patch by dtucker@zip.com.au
- (bal) use 'LOGIN_PROGRAM' not '/usr/bin/login' in session.c patch by
Bertrand.Velle@apogee-com.fr
20020606
- (bal) OpenBSD CVS Sync
- markus@cvs.openbsd.org 2002/05/15 21:56:38
[servconf.c sshd.8 sshd_config]
re-enable privsep and disable setuid for post-3.2.2
- markus@cvs.openbsd.org 2002/05/16 22:02:50
[cipher.c kex.h mac.c]
fix warnings (openssl 0.9.7 requires const)
- stevesk@cvs.openbsd.org 2002/05/16 22:09:59
[session.c ssh.c]
don't limit xauth pathlen on client side and longer print length on
server when debug; ok markus@
- deraadt@cvs.openbsd.org 2002/05/19 20:54:52
[log.h]
extra commas in enum not 100% portable
- deraadt@cvs.openbsd.org 2002/05/22 23:18:25
[ssh.c sshd.c]
spelling; abishoff@arc.nasa.gov
- markus@cvs.openbsd.org 2002/05/23 19:24:30
[authfile.c authfile.h pathnames.h ssh.c sshconnect.c sshconnect.h
sshconnect1.c sshconnect2.c ssh-keysign.8 ssh-keysign.c Makefile.in]
add /usr/libexec/ssh-keysign: a setuid helper program for hostbased
authentication in protocol v2 (needs to access the hostkeys).
- markus@cvs.openbsd.org 2002/05/23 19:39:34
[ssh.c]
add comment about ssh-keysign
- markus@cvs.openbsd.org 2002/05/24 08:45:14
[sshconnect2.c]
stat ssh-keysign first, print error if stat fails;
some debug->error; fix comment
- markus@cvs.openbsd.org 2002/05/25 08:50:39
[sshconnect2.c]
execlp->execl; from stevesk
- markus@cvs.openbsd.org 2002/05/25 18:51:07
[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@
- stevesk@cvs.openbsd.org 2002/05/26 20:35:10
[ssh.1]
sort ChallengeResponseAuthentication; ok markus@
- stevesk@cvs.openbsd.org 2002/05/28 16:45:27
[monitor_mm.c]
print strerror(errno) on mmap/munmap error; ok markus@
- stevesk@cvs.openbsd.org 2002/05/28 17:28:02
[uidswap.c]
format spec change/casts and some KNF; ok markus@
- stevesk@cvs.openbsd.org 2002/05/28 21:24:00
[uidswap.c]
use correct function name in fatal()
- stevesk@cvs.openbsd.org 2002/05/29 03:06:30
[ssh.1 sshd.8]
spelling
- markus@cvs.openbsd.org 2002/05/29 11:21:57
[sshd.c]
don't start if privsep is enabled and SSH_PRIVSEP_USER or
_PATH_PRIVSEP_CHROOT_DIR are missing; ok deraadt@
- markus@cvs.openbsd.org 2002/05/30 08:07:31
[cipher.c]
use rijndael/aes from libcrypto (openssl >= 0.9.7) instead of
our own implementation. allow use of AES hardware via libcrypto,
ok deraadt@
- markus@cvs.openbsd.org 2002/05/31 10:30:33
[sshconnect2.c]
extent ssh-keysign protocol:
pass # of socket-fd to ssh-keysign, keysign verfies locally used
ip-address using this socket-fd, restricts fake local hostnames
to actual local hostnames; ok stevesk@
- markus@cvs.openbsd.org 2002/05/31 11:35:15
[auth.h auth2.c]
move Authmethod definitons to per-method file.
- markus@cvs.openbsd.org 2002/05/31 13:16:48
[key.c]
add comment:
key_verify returns 1 for a correct signature, 0 for an incorrect signature
and -1 on error.
- markus@cvs.openbsd.org 2002/05/31 13:20:50
[ssh-rsa.c]
pad received signature with leading zeros, because RSA_verify expects
a signature of RSA_size. the drafts says the signature is transmitted
unpadded (e.g. putty does not pad), reported by anakin@pobox.com
- deraadt@cvs.openbsd.org 2002/06/03 12:04:07
[ssh.h]
compatiblity -> compatibility
decriptor -> descriptor
authentciated -> authenticated
transmition -> transmission
- markus@cvs.openbsd.org 2002/06/04 19:42:35
[monitor.c]
only allow enabled authentication methods; ok provos@
- markus@cvs.openbsd.org 2002/06/04 19:53:40
[monitor.c]
save the session id (hash) for ssh2 (it will be passed with the
initial sign request) and verify that this value is used during
authentication; ok provos@
- markus@cvs.openbsd.org 2002/06/04 23:02:06
[packet.c]
remove __FUNCTION__
- markus@cvs.openbsd.org 2002/06/04 23:05:49
[cipher.c monitor.c monitor_fdpass.c monitor_mm.c monitor_wrap.c]
__FUNCTION__ -> __func__
- markus@cvs.openbsd.org 2002/06/05 16:08:07
[ssh-agent.1 ssh-agent.c]
'-a bind_address' binds the agent to user-specified unix-domain
socket instead of /tmp/ssh-XXXXXXXX/agent.<pid>; ok djm@ (some time ago).
- markus@cvs.openbsd.org 2002/06/05 16:08:07
[ssh-agent.1 ssh-agent.c]
'-a bind_address' binds the agent to user-specified unix-domain
socket instead of /tmp/ssh-XXXXXXXX/agent.<pid>; ok djm@ (some time ago).
- markus@cvs.openbsd.org 2002/06/05 16:48:54
[ssh-agent.c]
copy current request into an extra buffer and just flush this
request on errors, ok provos@
- markus@cvs.openbsd.org 2002/06/05 19:57:12
[authfd.c authfd.h ssh-add.1 ssh-add.c ssh-agent.c]
ssh-add -x for lock and -X for unlocking the agent.
todo: encrypt private keys with locked...
- markus@cvs.openbsd.org 2002/06/05 20:56:39
[ssh-add.c]
add -x/-X to usage
- markus@cvs.openbsd.org 2002/06/05 21:55:44
[authfd.c authfd.h ssh-add.1 ssh-add.c ssh-agent.c]
ssh-add -t life, Set lifetime (in seconds) when adding identities;
ok provos@
- stevesk@cvs.openbsd.org 2002/06/06 01:09:41
[monitor.h]
no trailing comma in enum; china@thewrittenword.com
- markus@cvs.openbsd.org 2002/06/06 17:12:44
[sftp-server.c]
discard remaining bytes of current request; ok provos@
- markus@cvs.openbsd.org 2002/06/06 17:30:11
[sftp-server.c]
use get_int() macro (hide iqueue)
- (bal) Missed msg.[ch] in merge. Required for ssh-keysign.
- (bal) Forgot to add msg.c Makefile.in.
- (bal) monitor_mm.c typos.
- (bal) Refixed auth2.c. It was never fully commited while spliting out
authentication to different files.
- (bal) ssh-keysign should build and install correctly now. Phase two
would be to clean out any dead wood and disable ssh setuid on install.
- (bal) Reverse logic, use __func__ first since it's C99
20020604
- (stevesk) [channels.c] bug #164 patch from YOSHIFUJI Hideaki (changed
setsockopt from debug to error for now).
20020527
- (tim) [configure.ac.orig monitor_fdpass.c] Enahnce msghdr tests to address
build problem on Irix reported by Dave Love <d.love@dl.ac.uk>. Back out
last monitor_fdpass.c changes that are no longer needed with new tests.
Patch tested on Irix by Jan-Frode Myklebust <janfrode@parallab.uib.no>
20020522
- (djm) Fix spelling mistakes, spotted by Solar Designer i
<solar@openwall.com>
- Sync scard/ (not sure when it drifted)
- (djm) OpenBSD CVS Sync:
[auth.c]
Fix typo/thinko. Pass in as to auth_approval(), not NULL.
Closes PR 2659.
- Crank version
- Crank RPM spec versions
20020521
- (stevesk) [sshd.c] bug 245; disable setsid() for now
- (stevesk) [sshd.c] #ifndef HAVE_CYGWIN for setgroups()
20020517
- (tim) [configure.ac] remove extra MD5_MSG="no" line.
20020515
- (bal) CVS ID fix up on auth-passwd.c
- (bal) OpenBSD CVS Sync
- deraadt@cvs.openbsd.org 2002/05/07 19:54:36
[ssh.h]
use ssh uid
- deraadt@cvs.openbsd.org 2002/05/08 21:06:34
[ssh.h]
move to sshd.sshd instead
- stevesk@cvs.openbsd.org 2002/05/11 20:24:48
[ssh.h]
typo in comment
- itojun@cvs.openbsd.org 2002/05/13 02:37:39
[auth-skey.c auth2.c]
less warnings. skey_{respond,query} are public (in auth.h)
- markus@cvs.openbsd.org 2002/05/13 20:44:58
[auth-options.c auth.c auth.h]
move the packet_send_debug handling from auth-options.c to auth.c;
ok provos@
- millert@cvs.openbsd.org 2002/05/13 15:53:19
[sshd.c]
Call setsid() in the child after sshd accepts the connection and forks.
This is needed for privsep which calls setlogin() when it changes uids.
Without this, there is a race where the login name of an existing
connection, as returned by getlogin(), may be changed to the privsep
user (sshd). markus@ OK
- markus@cvs.openbsd.org 2002/05/13 21:26:49
[auth-rhosts.c]
handle debug messages during rhosts-rsa and hostbased authentication;
ok provos@
- mouring@cvs.openbsd.org 2002/05/15 15:47:49
[kex.c monitor.c monitor_wrap.c sshd.c]
'monitor' variable clashes with at least one lame platform (NeXT). i
Renamed to 'pmonitor'. provos@
- deraadt@cvs.openbsd.org 2002/05/04 02:39:35
[servconf.c sshd.8 sshd_config]
enable privsep by default; provos ok
- millert@cvs.openbsd.org 2002/05/06 23:34:33
[ssh.1 sshd.8]
Kill/adjust r(login|exec)d? references now that those are no longer in
the tree.
- markus@cvs.openbsd.org 2002/05/15 21:02:53
[servconf.c sshd.8 sshd_config]
disable privsep and enable setuid for the 3.2.2 release
- (bal) Fixed up PAM case. I think.
- (bal) Clarified openbsd-compat/*-cray.* Licence provided by Wendy
- (bal) OpenBSD CVS Sync
- markus@cvs.openbsd.org 2002/05/15 21:05:29
[version.h]
enter OpenSSH_3.2.2
- (bal) Caldara, Suse, and Redhat openssh.specs updated.
* Build properly on systems that don't have /dev/urandom by testing for
the presence of /dev/urandom, instead of just testing for Solaris.
* Add disabled code to handle PAM (not quite working yet with security/PAM).
* Make the sshd rc.d script more /etc/rc.subr-friendly.
* Minimize amount of diffs from pristine OpenSSH sources.
