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path: root/sshconnect.c
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2016-12-23Include the Debian version in our identificationMatthew Vernon
This makes it easier to audit networks for versions patched against security vulnerabilities. It has little detrimental effect, as attackers will generally just try attacks rather than bothering to scan for vulnerable-looking version strings. (However, see debian-banner.patch.) Forwarded: not-needed Last-Update: 2013-09-14 Patch-Name: package-versioning.patch
2016-12-23Mention ssh-keygen in ssh fingerprint changed warningScott Moser
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1843 Bug-Ubuntu: https://bugs.launchpad.net/bugs/686607 Last-Update: 2015-09-08 Patch-Name: mention-ssh-keygen-on-keychange.patch
2016-12-23Look for $SHELL on the path for ProxyCommand/LocalCommandColin Watson
There's some debate on the upstream bug about whether POSIX requires this. I (Colin Watson) agree with Vincent and think it does. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1494 Bug-Debian: http://bugs.debian.org/492728 Last-Update: 2013-09-14 Patch-Name: shell-path.patch
2016-09-12upstream commitderaadt@openbsd.org
Add MAXIMUM(), MINIMUM(), and ROUNDUP() to misc.h, then use those definitions rather than pulling <sys/param.h> and unknown namespace pollution. ok djm markus dtucker Upstream-ID: 712cafa816c9f012a61628b66b9fbd5687223fb8
2016-01-27upstream commitmarkus@openbsd.org
fd leaks; report Qualys Security Advisory team; ok deraadt@ Upstream-ID: 4ec0f12b9d8fa202293c9effa115464185aa071d
2016-01-27upstream commitmarkus@openbsd.org
remove roaming support; ok djm@ Upstream-ID: 2cab8f4b197bc95776fb1c8dc2859dad0c64dc56
2015-11-20upstream commitdjm@openbsd.org
add cast to make -Werror clean Upstream-ID: 288db4f8f810bd475be01320c198250a04ff064d
2015-11-19upstream commitdjm@openbsd.org
ban ConnectionAttempts=0, it makes no sense and would cause ssh_connect_direct() to print an uninitialised stack variable; bz#2500 reported by dvw AT phas.ubc.ca Upstream-ID: 32b5134c608270583a90b93a07b3feb3cbd5f7d5
2015-11-19upstream commitdjm@openbsd.org
print host certificate contents at debug level Upstream-ID: 39354cdd8a2b32b308fd03f98645f877f540f00d
2015-11-16upstream commitjcs@openbsd.org
Add an AddKeysToAgent client option which can be set to 'yes', 'no', 'ask', or 'confirm', and defaults to 'no'. When enabled, a private key that is used during authentication will be added to ssh-agent if it is running (with confirmation enabled if set to 'confirm'). Initial version from Joachim Schipper many years ago. ok markus@ Upstream-ID: a680db2248e8064ec55f8be72d539458c987d5f4
2015-09-04upstream commitdjm@openbsd.org
correct function name in error messages Upstream-ID: 92fb2798617ad9561370897f4ab60adef2ff4c0e
2015-09-04upstream commitdjm@openbsd.org
remove extra newline in nethack-mode hostkey; from Christian Hesse bz#2686 Upstream-ID: 4f56368b1cc47baeea0531912186f66007fd5b92
2015-08-21upstream commitderaadt@openbsd.org
Do not cast result of malloc/calloc/realloc* if stdlib.h is in scope ok krw millert Upstream-ID: 5e50ded78cadf3841556649a16cc4b1cb6c58667
2015-05-28upstream commitdtucker@openbsd.org
Increase the allowed length of the known host file name in the log message to be consistent with other cases. Part of bz#1993, ok deraadt. Upstream-ID: a9e97567be49f25daf286721450968251ff78397
2015-04-29upstream commitdtucker@openbsd.org
Output remote username in debug output since with Host and Match it's not always obvious what it will be. bz#2368, ok djm@
2015-03-27upstream commitdjm@openbsd.org
fix double-negative error message "ssh1 is not unsupported"
2015-01-29upstream commitdjm@openbsd.org
update to new API (key_fingerprint => sshkey_fingerprint) check sshkey_fingerprint return values; ok markus
2015-01-27upstream commitdjm@openbsd.org
correctly match ECDSA subtype (== curve) for offered/recevied host keys. Fixes connection-killing host key mismatches when a server offers multiple ECDSA keys with different curve type (an extremely unlikely configuration). ok markus, "looks mechanical" deraadt@
2015-01-27upstream commitdjm@openbsd.org
Host key rotation support. Add a hostkeys@openssh.com protocol extension (global request) for a server to inform a client of all its available host key after authentication has completed. The client may record the keys in known_hosts, allowing it to upgrade to better host key algorithms and a server to gracefully rotate its keys. The client side of this is controlled by a UpdateHostkeys config option (default on). ok markus@
2015-01-26upstream commitderaadt@openbsd.org
Reduce use of <sys/param.h> and transition to <limits.h> throughout. ok djm markus
2015-01-20upstream commitmarkus@openbsd.org
store compat flags in struct ssh; ok djm@
2014-12-22upstream commitdjm@openbsd.org
Add FingerprintHash option to control algorithm used for key fingerprints. Default changes from MD5 to SHA256 and format from hex to base64. Feedback and ok naddy@ markus@
2014-12-11upstream commitdjm@openbsd.org
explicitly include sys/param.h in files that use the howmany() macro; from portable
2014-12-05upstream commitdjm@openbsd.org
add RevokedHostKeys option for the client Allow textfile or KRL-based revocation of hostkeys.
2014-07-18 - millert@cvs.openbsd.org 2014/07/15 15:54:14Damien Miller
[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@
2014-07-04 - djm@cvs.openbsd.org 2014/07/03 22:23:46Damien Miller
[sshconnect.c] when rekeying, skip file/DNS lookup if it is the same as the key sent during initial key exchange. bz#2154 patch from Iain Morgan; ok markus@
2014-07-02 - djm@cvs.openbsd.org 2014/06/24 01:13:21Damien Miller
[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.
2014-05-15 - markus@cvs.openbsd.org 2014/04/29 18:01:49Damien Miller
[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
2014-04-20 - djm@cvs.openbsd.org 2014/04/01 03:34:10Damien Miller
[sshconnect.c] When using VerifyHostKeyDNS with a DNSSEC resolver, down-convert any certificate keys to plain keys and attempt SSHFP resolution. Prevents a server from skipping SSHFP lookup and forcing a new-hostkey dialog by offering only certificate keys. Reported by mcv21 AT cam.ac.uk
2014-02-07 - djm@cvs.openbsd.org 2014/02/06 22:21:01Damien Miller
[sshconnect.c] in ssh_create_socket(), only do the getaddrinfo for BindAddress when BindAddress is actually specified. Fixes regression in 6.5 for UsePrivilegedPort=yes; patch from Corinna Vinschen
2014-02-04 - djm@cvs.openbsd.org 2014/02/02 03:44:32Damien Miller
[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()
2014-01-10 - djm@cvs.openbsd.org 2014/01/09 23:26:48Damien Miller
[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@
2013-12-31 - djm@cvs.openbsd.org 2013/12/30 23:52:28Damien Miller
[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@
2013-12-29 - djm@cvs.openbsd.org 2013/12/29 05:57:02Damien Miller
[sshconnect.c] when showing other hostkeys, don't forget Ed25519 keys
2013-10-17 - djm@cvs.openbsd.org 2013/10/16 02:31:47Damien Miller
[readconf.c readconf.h roaming_client.c ssh.1 ssh.c ssh_config.5] [sshconnect.c sshconnect.h] Implement client-side hostname canonicalisation to allow an explicit search path of domain suffixes to use to convert unqualified host names to fully-qualified ones for host key matching. This is particularly useful for host certificates, which would otherwise need to list unqualified names alongside fully-qualified ones (and this causes a number of problems). "looks fine" markus@
2013-10-10 - djm@cvs.openbsd.org 2013/09/19 01:26:29Darren Tucker
[sshconnect.c] bz#1211: make BindAddress work with UsePrivilegedPort=yes; patch from swp AT swp.pp.ru; ok dtucker@
2013-08-21 - djm@cvs.openbsd.org 2013/08/20 00:11:38Damien Miller
[readconf.c readconf.h ssh_config.5 sshconnect.c] Add a ssh_config ProxyUseFDPass option that supports the use of ProxyCommands that establish a connection and then pass a connected file descriptor back to ssh(1). This allows the ProxyCommand to exit rather than have to shuffle data back and forth and enables ssh to use getpeername, etc. to obtain address information just like it does with regular directly-connected sockets. ok markus@
2013-06-02 - djm@cvs.openbsd.org 2013/05/17 00:13:13Darren Tucker
[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@
2013-04-05 - markus@cvs.openbsd.org 2013/02/22 19:13:56Darren Tucker
[sshconnect.c] support ProxyCommand=- (stdin/out already point to the proxy); ok djm@
2012-09-17 - markus@cvs.openbsd.org 2012/09/14 16:51:34Darren Tucker
[sshconnect.c] remove unused variable
2012-09-06 - djm@cvs.openbsd.org 2012/08/17 01:30:00Darren Tucker
[compat.c sshconnect.c] Send client banner immediately, rather than waiting for the server to move first for SSH protocol 2 connections (the default). Patch based on one in bz#1999 by tls AT panix.com, feedback dtucker@ ok markus@
2011-05-29 - djm@cvs.openbsd.org 2011/05/24 07:15:47Damien Miller
[readconf.c readconf.h ssh.c ssh_config.5 sshconnect.c sshconnect2.c] Remove undocumented legacy options UserKnownHostsFile2 and GlobalKnownHostsFile2 by making UserKnownHostsFile/GlobalKnownHostsFile accept multiple paths per line and making their defaults include known_hosts2; ok markus
2011-05-29 - djm@cvs.openbsd.org 2011/05/23 03:52:55Damien Miller
[sshconnect.c] remove extra newline
2011-01-16 - djm@cvs.openbsd.org 2011/01/16 11:50:36Damien Miller
[sshconnect.c] reset the SIGPIPE handler when forking to execute child processes; ok dtucker@
2011-01-07 - djm@cvs.openbsd.org 2011/01/06 23:01:35Damien Miller
[sshconnect.c] reset SIGCHLD handler to SIG_DFL when execuring LocalCommand; ok markus@
2011-01-06 - markus@cvs.openbsd.org 2010/12/14 11:59:06Damien Miller
[sshconnect.c] don't mention key type in key-changed-warning, since we also print this warning if a new key type appears. ok djm@
2010-12-01 - djm@cvs.openbsd.org 2010/11/29 23:45:51Damien Miller
[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@
2010-10-12 - (djm) [sshconnect.c] Need signal.h for prototype for kill(2)Damien Miller
2010-10-07 - djm@cvs.openbsd.org 2010/10/06 21:10:21Damien Miller
[sshconnect.c] swapped args to kill(2)
2010-10-07 - djm@cvs.openbsd.org 2010/10/06 06:39:28Damien Miller
[clientloop.c ssh.c sshconnect.c sshconnect.h] kill proxy command on fatal() (we already kill it on clean exit); ok markus@