Commit Graph

459 Commits

Author SHA1 Message Date
djm@openbsd.org 48b68ce19c upstream commit
explicitly include sys/param.h in files that use the
 howmany() macro; from portable
2014-12-11 19:20:29 +11:00
Damien Miller 146218ac11 - (djm) [monitor.c sshd.c] SIGXFSZ needs to be ignored in postauth
monitor, not preauth; bz#2263
2014-08-27 04:11:55 +10:00
Damien Miller 4cec036362 - (djm) [sshd.c] Ignore SIGXFSZ in preauth monitor child; can explode on
lastlog writing on platforms with high UIDs; bz#2263
2014-08-23 03:11:09 +10:00
Damien Miller 7acefbbcbe - millert@cvs.openbsd.org 2014/07/15 15:54:14
[PROTOCOL auth-options.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c]
     [auth-rsa.c auth.c auth1.c auth2-hostbased.c auth2-kbdint.c auth2-none.c]
     [auth2-passwd.c auth2-pubkey.c auth2.c canohost.c channels.c channels.h]
     [clientloop.c misc.c misc.h monitor.c mux.c packet.c readconf.c]
     [readconf.h servconf.c servconf.h serverloop.c session.c ssh-agent.c]
     [ssh.c ssh_config.5 sshconnect.c sshconnect1.c sshconnect2.c sshd.c]
     [sshd_config.5 sshlogin.c]
     Add support for Unix domain socket forwarding.  A remote TCP port
     may be forwarded to a local Unix domain socket and vice versa or
     both ends may be a Unix domain socket.  This is a reimplementation
     of the streamlocal patches by William Ahern from:
         http://www.25thandclement.com/~william/projects/streamlocal.html
     OK djm@ markus@
2014-07-18 14:11:24 +10:00
Damien Miller 8668706d0f - djm@cvs.openbsd.org 2014/06/24 01:13:21
[Makefile.in auth-bsdauth.c auth-chall.c auth-options.c auth-rsa.c
     [auth2-none.c auth2-pubkey.c authfile.c authfile.h cipher-3des1.c
     [cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h
     [digest-libc.c digest-openssl.c digest.h dns.c entropy.c hmac.h
     [hostfile.c key.c key.h krl.c monitor.c packet.c rsa.c rsa.h
     [ssh-add.c ssh-agent.c ssh-dss.c ssh-ecdsa.c ssh-ed25519.c
     [ssh-keygen.c ssh-pkcs11-client.c ssh-pkcs11-helper.c ssh-pkcs11.c
     [ssh-rsa.c sshbuf-misc.c sshbuf.h sshconnect.c sshconnect1.c
     [sshconnect2.c sshd.c sshkey.c sshkey.h
     [openbsd-compat/openssl-compat.c openbsd-compat/openssl-compat.h]
     New key API: refactor key-related functions to be more library-like,
     existing API is offered as a set of wrappers.

     with and ok markus@

     Thanks also to Ben Hawkes, David Tomaschik, Ivan Fratric, Matthew
     Dempsky and Ron Bowes for a detailed review a few months ago.

     NB. This commit also removes portable OpenSSH support for OpenSSL
     <0.9.8e.
2014-07-02 15:28:02 +10:00
Damien Miller 1f0311c7c7 - markus@cvs.openbsd.org 2014/04/29 18:01:49
[auth.c authfd.c authfile.c bufaux.c cipher.c cipher.h hostfile.c]
     [kex.c key.c mac.c monitor.c monitor_wrap.c myproposal.h packet.c]
     [roaming_client.c ssh-agent.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
     [ssh-pkcs11.h ssh.c sshconnect.c sshconnect2.c sshd.c]
     make compiling against OpenSSL optional (make OPENSSL=no);
     reduces algorithms to curve25519, aes-ctr, chacha, ed25519;
     allows us to explore further options; with and ok djm
2014-05-15 14:24:09 +10:00
Damien Miller 84c1e7bca8 - tedu@cvs.openbsd.org 2014/04/19 14:53:48
[ssh-keysign.c sshd.c]
     Delete futile calls to RAND_seed. ok djm
     NB. Id sync only. This only applies to OpenBSD's libcrypto slashathon
2014-04-20 13:27:53 +10:00
Damien Miller 9395b28223 - djm@cvs.openbsd.org 2014/04/18 23:52:25
[compat.c compat.h sshconnect2.c sshd.c version.h]
     OpenSSH 6.5 and 6.6 have a bug that causes ~0.2% of connections
     using the curve25519-sha256@libssh.org KEX exchange method to fail
     when connecting with something that implements the spec properly.

     Disable this KEX method when speaking to one of the affected
     versions.

     reported by Aris Adamantiadis; ok markus@
2014-04-20 13:25:30 +10:00
Damien Miller 75c62728dc - djm@cvs.openbsd.org 2014/04/12 04:55:53
[sshd.c]
     avoid crash at exit: check that pmonitor!=NULL before dereferencing;
     bz#2225, patch from kavi AT juniper.net
2014-04-20 13:24:31 +10:00
Damien Miller f2719b7c2b - tedu@cvs.openbsd.org 2014/03/26 19:58:37
[sshd.8 sshd.c]
     remove libwrap support. ok deraadt djm mfriedl
2014-04-20 13:22:18 +10:00
Damien Miller 9235a030ad Three commits in one (since they touch the same heavily-diverged file
repeatedly):

   - markus@cvs.openbsd.org 2014/03/25 09:40:03
     [myproposal.h]
     trimm default proposals.

     This commit removes the weaker pre-SHA2 hashes, the broken ciphers
     (arcfour), and the broken modes (CBC) from the default configuration
     (the patch only changes the default, all the modes are still available
     for the config files).

     ok djm@, reminded by tedu@ & naddy@ and discussed with many
   - deraadt@cvs.openbsd.org 2014/03/26 17:16:26
     [myproposal.h]
     The current sharing of myproposal[] between both client and server code
     makes the previous diff highly unpallatable.  We want to go in that
     direction for the server, but not for the client.  Sigh.
     Brought up by naddy.
   - markus@cvs.openbsd.org 2014/03/27 23:01:27
     [myproposal.h ssh-keyscan.c sshconnect2.c sshd.c]
     disable weak proposals in sshd, but keep them in ssh; ok djm@
2014-04-20 13:17:20 +10:00
Damien Miller fb3423b612 - markus@cvs.openbsd.org 2014/02/26 21:53:37
[sshd.c]
     ssh_gssapi_prepare_supported_oids needs GSSAPI
2014-02-27 10:20:07 +11:00
Damien Miller e6a74aeeac - djm@cvs.openbsd.org 2014/02/26 20:28:44
[auth2-gss.c gss-serv.c ssh-gss.h sshd.c]
     bz#2107 - cache OIDs of supported GSSAPI mechanisms before privsep
     sandboxing, as running this code in the sandbox can cause violations;
     ok markus@
2014-02-27 10:17:49 +11:00
Damien Miller a5103f413b - djm@cvs.openbsd.org 2014/02/02 03:44:32
[auth1.c auth2-chall.c auth2-passwd.c authfile.c bufaux.c bufbn.c]
     [buffer.c cipher-3des1.c cipher.c clientloop.c gss-serv.c kex.c]
     [kexdhc.c kexdhs.c kexecdhc.c kexgexc.c kexecdhs.c kexgexs.c key.c]
     [monitor.c monitor_wrap.c packet.c readpass.c rsa.c serverloop.c]
     [ssh-add.c ssh-agent.c ssh-dss.c ssh-ecdsa.c ssh-ed25519.c]
     [ssh-keygen.c ssh-rsa.c sshconnect.c sshconnect1.c sshconnect2.c]
     [sshd.c]
     convert memset of potentially-private data to explicit_bzero()
2014-02-04 11:20:14 +11:00
Damien Miller 1d2c456426 - tedu@cvs.openbsd.org 2014/01/31 16:39:19
[auth2-chall.c authfd.c authfile.c bufaux.c bufec.c canohost.c]
     [channels.c cipher-chachapoly.c clientloop.c configure.ac hostfile.c]
     [kexc25519.c krl.c monitor.c sandbox-systrace.c session.c]
     [sftp-client.c ssh-keygen.c ssh.c sshconnect2.c sshd.c sshlogin.c]
     [openbsd-compat/explicit_bzero.c openbsd-compat/openbsd-compat.h]
     replace most bzero with explicit_bzero, except a few that cna be memset
     ok djm dtucker
2014-02-04 11:18:20 +11:00
Damien Miller b0f26544cf - djm@cvs.openbsd.org 2014/01/29 00:19:26
[sshd.c]
     use kill(0, ...) instead of killpg(0, ...); on most operating systems
     they are equivalent, but SUSv2 describes the latter as having undefined
     behaviour; from portable; ok dtucker
     (Id sync only; change is already in portable)
2014-02-04 11:10:01 +11:00
Damien Miller 4a1c7aa640 - markus@cvs.openbsd.org 2014/01/27 19:18:54
[auth-rsa.c cipher.c ssh-agent.c sshconnect1.c sshd.c]
     replace openssl MD5 with our ssh_digest_*; ok djm@
2014-02-04 11:03:36 +11:00
Damien Miller ab16ef4152 - (djm) [sshd.c] Use kill(0, ...) instead of killpg(0, ...); the
latter being specified to have undefined behaviour in SUSv3;
   ok dtucker
2014-01-28 15:08:12 +11:00
Damien Miller 868ea1ea1c - (djm) [Makefile.in configure.ac sandbox-capsicum.c sandbox-darwin.c]
[sandbox-null.c sandbox-rlimit.c sandbox-seccomp-filter.c]
   [sandbox-systrace.c ssh-sandbox.h sshd.c] Support preauth sandboxing
   using the Capsicum API introduced in FreeBSD 10. Patch by Dag-Erling
   Smorgrav, updated by Loganaden Velvindron @ AfriNIC; ok dtucker@
2014-01-17 16:47:04 +11:00
Damien Miller 58cd63bc63 - djm@cvs.openbsd.org 2014/01/09 23:26:48
[sshconnect.c sshd.c]
     ban clients/servers that suffer from SSH_BUG_DERIVEKEY, they are ancient,
     deranged and might make some attacks on KEX easier; ok markus@
2014-01-10 10:59:24 +11:00
Damien Miller 324541e526 - djm@cvs.openbsd.org 2013/12/30 23:52:28
[auth2-hostbased.c auth2-pubkey.c compat.c compat.h ssh-rsa.c]
     [sshconnect.c sshconnect2.c sshd.c]
     refuse RSA keys from old proprietary clients/servers that use the
     obsolete RSA+MD5 signature scheme. it will still be possible to connect
     with these clients/servers but only DSA keys will be accepted, and we'll
     deprecate them entirely in a future release. ok markus@
2013-12-31 12:25:40 +11:00
Damien Miller 5be9d9e3cb - markus@cvs.openbsd.org 2013/12/06 13:39:49
[authfd.c authfile.c key.c key.h myproposal.h pathnames.h readconf.c]
     [servconf.c ssh-agent.c ssh-keygen.c ssh-keyscan.1 ssh-keyscan.c]
     [ssh-keysign.c ssh.c ssh_config.5 sshd.8 sshd.c verify.c ssh-ed25519.c]
     [sc25519.h sc25519.c hash.c ge25519_base.data ge25519.h ge25519.c]
     [fe25519.h fe25519.c ed25519.c crypto_api.h blocks.c]
     support ed25519 keys (hostkeys and user identities) using the public
     domain ed25519 reference code from SUPERCOP, see
     http://ed25519.cr.yp.to/software.html
     feedback, help & ok djm@
2013-12-07 11:24:01 +11:00
Damien Miller 23e00aa6ba - djm@cvs.openbsd.org 2013/11/20 02:19:01
[sshd.c]
     delay closure of in/out fds until after "Bad protocol version
     identification..." message, as get_remote_ipaddr/get_remote_port
     require them open.
2013-11-21 13:56:28 +11:00
Damien Miller 1e1242604e - markus@cvs.openbsd.org 2013/11/02 21:59:15
[kex.c kex.h myproposal.h ssh-keyscan.c sshconnect2.c sshd.c]
     use curve25519 for default key exchange (curve25519-sha256@libssh.org);
     initial patch from Aris Adamantiadis; ok djm@
2013-11-04 08:26:52 +11:00
Damien Miller 26506ad293 - (djm) [ssh-keygen.c ssh-keysign.c sshconnect1.c sshd.c] Remove
unnecessary arc4random_stir() calls. The only ones left are to ensure
   that the PRNG gets a different state after fork() for platforms that
   have broken the API.
2013-10-26 10:05:46 +11:00
Damien Miller 5ecb416298 - djm@cvs.openbsd.org 2013/10/23 23:35:32
[sshd.c]
     include local address and port in "Connection from ..." message (only
     shown at loglevel>=verbose)
2013-10-24 21:02:02 +11:00
Damien Miller 4502f88774 - djm@cvs.openbsd.org 2013/10/17 22:08:04
[sshd.c]
     include remote port in bad banner message; bz#2162
2013-10-18 10:17:36 +11:00
Damien Miller 61ee4d68ca - djm@cvs.openbsd.org 2013/10/10 01:43:03
[sshd.c]
     bz#2139: fix re-exec fallback by ensuring that startup_pipe is correctly
     updated; ok dtucker@
2013-10-15 11:56:47 +11:00
Darren Tucker f2bf36c3eb - (dtucker) [platform.c platform.h sshd.c] bz#2156: restore Linux oom_adj
setting when handling SIGHUP to maintain behaviour over retart.  Patch
   from Matthew Ife.
2013-09-22 19:02:40 +10:00
Damien Miller 8bab5e7b5f - deraadt@cvs.openbsd.org 2013/09/02 22:00:34
[ssh-keygen.c sshconnect1.c sshd.c]
     All the instances of arc4random_stir() are bogus, since arc4random()
     does this itself, inside itself, and has for a very long time..  Actually,
     this was probably reducing the entropy available.
     ok djm
     ID SYNC ONLY for portable; we don't trust other arc4random implementations
     to do this right.
2013-09-14 09:47:00 +10:00
Damien Miller 045bda5cb8 - djm@cvs.openbsd.org 2013/08/22 19:02:21
[sshd.c]
     Stir PRNG after post-accept fork. The child gets a different PRNG state
     anyway via rexec and explicit privsep reseeds, but it's good to be sure.
     ok markus@
2013-09-14 09:44:37 +10:00
Damien Miller 85b45e0918 - markus@cvs.openbsd.org 2013/07/19 07:37:48
[auth.h kex.h kexdhs.c kexecdhs.c kexgexs.c monitor.c servconf.c]
     [servconf.h session.c sshd.c sshd_config.5]
     add ssh-agent(1) support to sshd(8); allows encrypted hostkeys,
     or hostkeys on smartcards; most of the work by Zev Weiss; bz #1974
     ok djm@
2013-07-20 13:21:52 +10:00
Darren Tucker 0cca17fa18 - dtucker@cvs.openbsd.org 2013/06/05 02:27:50
[sshd.c]
     When running sshd -D, close stderr unless we have explicitly requesting
     logging to stderr. From james.hunt at ubuntu.com via bz#1976, djm's patch
     so, err, ok dtucker.
2013-06-06 08:21:14 +10:00
Darren Tucker f60845fde2 - (dtucker) [M auth-chall.c auth-krb5.c auth-pam.c cipher-aes.c cipher-ctr.c
groupaccess.c loginrec.c monitor.c monitor_wrap.c session.c sshd.c
   sshlogin.c uidswap.c openbsd-compat/bsd-cygwin_util.c
   openbsd-compat/getrrsetbyname-ldns.c openbsd-compat/port-aix.c
   openbsd-compat/port-linux.c] Replace portable-specific instances of xfree
   with the equivalent calls to free.
2013-06-02 08:07:31 +10:00
Darren Tucker a627d42e51 - djm@cvs.openbsd.org 2013/05/17 00:13:13
[xmalloc.h cipher.c sftp-glob.c ssh-keyscan.c ssh.c sftp-common.c
     ssh-ecdsa.c auth2-chall.c compat.c readconf.c kexgexs.c monitor.c
     gss-genr.c cipher-3des1.c kex.c monitor_wrap.c ssh-pkcs11-client.c
     auth-options.c rsa.c auth2-pubkey.c sftp.c hostfile.c auth2.c
     servconf.c auth.c authfile.c xmalloc.c uuencode.c sftp-client.c
     auth2-gss.c sftp-server.c bufaux.c mac.c session.c jpake.c kexgexc.c
     sshconnect.c auth-chall.c auth2-passwd.c sshconnect1.c buffer.c
     kexecdhs.c kexdhs.c ssh-rsa.c auth1.c ssh-pkcs11.c auth2-kbdint.c
     kexdhc.c sshd.c umac.c ssh-dss.c auth2-jpake.c bufbn.c clientloop.c
     monitor_mm.c scp.c roaming_client.c serverloop.c key.c auth-rsa.c
     ssh-pkcs11-helper.c ssh-keysign.c ssh-keygen.c match.c channels.c
     sshconnect2.c addrmatch.c mux.c canohost.c kexecdhc.c schnorr.c
     ssh-add.c misc.c auth2-hostbased.c ssh-agent.c bufec.c groupaccess.c
     dns.c packet.c readpass.c authfd.c moduli.c]
     bye, bye xfree(); ok markus@
2013-06-02 07:31:17 +10:00
Darren Tucker dbee308253 - dtucker@cvs.openbsd.org 2013/05/16 09:08:41
[log.c scp.c sshd.c serverloop.c schnorr.c sftp.c]
     Fix some "unused result" warnings found via clang and -portable.
     ok markus@
2013-05-16 20:32:29 +10:00
Darren Tucker 5f96f3b4be - dtucker@cvs.openbsd.org 2013/05/16 04:09:14
[sshd_config.5 servconf.c servconf.h packet.c serverloop.c monitor.c sshd_config
     sshd.c] Add RekeyLimit to sshd with the same syntax as the client allowing
     rekeying based on traffic volume or time.  ok djm@, help & ok jmc@ for the man
     page.
2013-05-16 20:29:28 +10:00
Damien Miller 03d4d7e60b - dtucker@cvs.openbsd.org 2013/04/07 02:10:33
[log.c log.h ssh.1 ssh.c sshd.8 sshd.c]
     Add -E option to ssh and sshd to append debugging logs to a specified file
     instead of stderr or syslog.  ok markus@, man page help jmc@
2013-04-23 15:21:06 +10:00
Damien Miller 37f1c08473 - markus@cvs.openbsd.org 2013/04/06 16:07:00
[channels.c sshd.c]
     handle ECONNABORTED for accept(); ok deraadt some time ago...
2013-04-23 15:20:43 +10:00
Damien Miller 22e8a1e169 - dtucker@cvs.openbsd.org 2013/02/11 21:21:58
[sshd.c]
     Add openssl version to debug output similar to the client.  ok markus@
2013-02-12 11:04:48 +11:00
Damien Miller a6e3f01d1e - djm@cvs.openbsd.org 2012/11/04 11:09:15
[auth.h auth1.c auth2.c monitor.c servconf.c servconf.h sshd.c]
     [sshd_config.5]
     Support multiple required authentication via an AuthenticationMethods
     option. This option lists one or more comma-separated lists of
     authentication method names. Successful completion of all the methods in
     any list is required for authentication to complete;
     feedback and ok markus@
2012-11-04 23:21:40 +11:00
Damien Miller d0d1099b3b - djm@cvs.openbsd.org 2012/11/04 10:38:43
[auth2-pubkey.c sshd.c sshd_config.5]
     Remove default of AuthorizedCommandUser. Administrators are now expected
     to explicitly specify a user. feedback and ok markus@
2012-11-04 22:23:14 +11:00
Damien Miller 09d3e12512 - djm@cvs.openbsd.org 2012/10/30 21:29:55
[auth-rsa.c auth.c auth.h auth2-pubkey.c servconf.c servconf.h]
     [sshd.c sshd_config sshd_config.5]
     new sshd_config option AuthorizedKeysCommand to support fetching
     authorized_keys from a command in addition to (or instead of) from
     the filesystem. The command is run as the target server user unless
     another specified via a new AuthorizedKeysCommandUser option.

     patch originally by jchadima AT redhat.com, reworked by me; feedback
     and ok markus@
2012-10-31 08:58:58 +11:00
Damien Miller 5a5c2b9063 - djm@cvs.openbsd.org 2012/07/10 02:19:15
[servconf.c servconf.h sshd.c sshd_config]
     Turn on systrace sandboxing of pre-auth sshd by default for new installs
     by shipping a config that overrides the current UsePrivilegeSeparation=yes
     default. Make it easier to flip the default in the future by adding too.
2012-07-31 12:21:34 +10:00
Darren Tucker 3b4b2d3021 - markus@cvs.openbsd.org 2012/06/30 14:35:09
[sandbox-systrace.c sshd.c]
     fix a during the load of the sandbox policies (child can still make
     the read-syscall and wait forever for systrace-answers) by replacing
     the read/write synchronisation with SIGSTOP/SIGCONT;
     report and help hshoexer@; ok djm@, dtucker@
2012-07-02 18:54:31 +10:00
Darren Tucker fbcf827559 - (dtucker) OpenBSD CVS Sync
- 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@.
2012-05-19 19:37:01 +10:00
Damien Miller 23528816dc - djm@cvs.openbsd.org 2012/04/12 02:42:32
[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@
2012-04-22 11:24:43 +10:00
Damien Miller a116d13c4d - djm@cvs.openbsd.org 2012/04/11 13:26:40
[sshd.c]
     don't spin in accept() when out of fds (ENFILE/ENFILE) - back off for a
     while; ok deraadt@ markus@
2012-04-22 11:23:46 +10:00
Tim Rice e3609c935c - (tim) [openbsd-compat/bsd-misc.h sshd.c] Fix conflicting return type for
unsetenv due to rev 1.14 change to setenv.c. Cast unsetenv to void in sshd.c
   ok dtucker@
2012-02-14 10:03:30 -08:00
Darren Tucker 2e13560ff5 - djm@cvs.openbsd.org 2011/09/30 21:22:49
[sshd.c]
     fix inverted test that caused logspam; spotted by henning@
2011-10-02 19:10:13 +11:00