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2018-08-24Accept obsolete ssh-vulnkey configuration optionsColin Watson
These options were used as part of Debian's response to CVE-2008-0166. Nearly six years later, we no longer need to continue carrying the bulk of that patch, but we do need to avoid failing when the associated configuration options are still present. Last-Update: 2014-02-09 Patch-Name: ssh-vulnkey-compat.patch
2018-08-24GSSAPI key exchange supportSimon Wilkinson
This patch has been rejected upstream: "None of the OpenSSH developers are in favour of adding this, and this situation has not changed for several years. This is not a slight on Simon's patch, which is of fine quality, but just that a) we don't trust GSSAPI implementations that much and b) we don't like adding new KEX since they are pre-auth attack surface. This one is particularly scary, since it requires hooks out to typically root-owned system resources." However, quite a lot of people rely on this in Debian, and it's better to have it merged into the main openssh package rather than having separate -krb5 packages (as we used to have). It seems to have a generally good security history. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1242 Last-Updated: 2018-08-24 Patch-Name: gssapi.patch
2018-08-13upstream: better diagnosics on alg list assembly errors; okdjm@openbsd.org
deraadt@ markus@ OpenBSD-Commit-ID: 5a557e74b839daf13cc105924d2af06a1560faee
2018-07-31Remove support for S/KeyDamien Miller
Most people will 1) be using modern multi-factor authentication methods like TOTP/OATH etc and 2) be getting support for multi-factor authentication via PAM or BSD Auth.
2018-07-31upstream: Now that ssh can't be setuid, remove thedtucker@openbsd.org
original_real_uid and original_effective_uid globals and replace with calls to plain getuid(). ok djm@ OpenBSD-Commit-ID: 92561c0cd418d34e6841e20ba09160583e27b68c
2018-07-31upstream: Remove uid checks from low port binds. Now that sshdtucker@openbsd.org
cannot be setuid and sshd always has privsep on, we can remove the uid checks for low port binds and just let the system do the check. We leave a sanity check for the !privsep case so long as the code is stil there. with & ok djm@ OpenBSD-Commit-ID: 9535cfdbd1cd54486fdbedfaee44ce4367ec7ca0
2018-07-19upstream: Deprecate UsePrivilegedPort now that support for runningdtucker@openbsd.org
ssh(1) setuid has been removed, remove supporting code and clean up references to it in the man pages We have not shipped ssh(1) the setuid bit since 2002. If ayone really needs to make connections from a low port number this can be implemented via a small setuid ProxyCommand. ok markus@ jmc@ djm@ OpenBSD-Commit-ID: d03364610b7123ae4c6792f5274bd147b6de717e
2018-07-19upstream: Remove support for running ssh(1) setuid and fatal ifdtucker@openbsd.org
attempted. Do not link uidwap.c into ssh any more. Neuters UsePrivilegedPort, which will be marked as deprecated shortly. ok markus@ djm@ OpenBSD-Commit-ID: c4ba5bf9c096f57a6ed15b713a1d7e9e2e373c42
2018-07-04upstream: repair PubkeyAcceptedKeyTypes (and friends) after RSAdjm@openbsd.org
signature work - returns ability to add/remove/specify algorithms by wildcard. Algorithm lists are now fully expanded when the server/client configs are finalised, so errors are reported early and the config dumps (e.g. "ssh -G ...") now list the actual algorithms selected. Clarify that, while wildcards are accepted in algorithm lists, they aren't full pattern-lists that support negation. (lots of) feedback, ok markus@ OpenBSD-Commit-ID: a8894c5c81f399a002f02ff4fe6b4fa46b1f3207
2018-06-11upstream: unbreak SendEnv; patch from tb@djm@openbsd.org
OpenBSD-Commit-ID: fc808daced813242563b80976e1478de95940056
2018-06-09upstream: add a SetEnv directive to ssh_config that allows settingdjm@openbsd.org
environment variables for the remote session (subject to the server accepting them) refactor SendEnv to remove the arbitrary limit of variable names. ok markus@ OpenBSD-Commit-ID: cfbb00d9b0e10c1ffff1d83424351fd961d1f2be
2018-06-07upstream: switch config file parsing to getline(3) as this avoidsmarkus@openbsd.org
static limits noted by gerhard@; ok dtucker@, djm@ OpenBSD-Commit-ID: 6d702eabef0fa12e5a1d75c334a8c8b325298b5c
2018-06-01upstream: make UID available as a %-expansion everywhere that thedjm@openbsd.org
username is available currently. In the client this is via %i, in the server %U (since %i was already used in the client in some places for this, but used for something different in the server); bz#2870, ok dtucker@ OpenBSD-Commit-ID: c7e912b0213713316cb55db194b3a6415b3d4b95
2018-05-22upstream: support ProxyJump=none to disable ProxyJumpdjm@openbsd.org
functionality; bz#2869 ok dtucker@ OpenBSD-Commit-ID: 1c06ee08eb78451b5837fcfd8cbebc5ff3a67a01
2018-04-06upstream: Allow "SendEnv -PATTERN" to clear environment variablesdjm@openbsd.org
previously labeled for sendind. bz#1285 ok dtucker@ OpenBSD-Commit-ID: f6fec9e3d0f366f15903094fbe1754cb359a0df9
2018-04-06upstream: add a couple of missed options to the config dump; patchdjm@openbsd.org
from Jakub Jelen via bz2835 OpenBSD-Commit-ID: 5970adadf6ef206bee0dddfc75d24c2019861446
2018-04-06upstream: Update default IPQoS in ssh(1), sshd(8) to DSCP AF21 forjob@openbsd.org
interactive and CS1 for bulk AF21 was selected as this is the highest priority within the low-latency service class (and it is higher than what we have today). SSH is elastic and time-sensitive data, where a user is waiting for a response via the network in order to continue with a task at hand. As such, these flows should be considered foreground traffic, with delays or drops to such traffic directly impacting user-productivity. For bulk SSH traffic, the CS1 "Lower Effort" marker was chosen to enable networks implementing a scavanger/lower-than-best effort class to discriminate scp(1) below normal activities, such as web surfing. In general this type of bulk SSH traffic is a background activity. An advantage of using "AF21" for interactive SSH and "CS1" for bulk SSH is that they are recognisable values on all common platforms (IANA https://www.iana.org/assignments/dscp-registry/dscp-registry.xml), and for AF21 specifically a definition of the intended behavior exists https://tools.ietf.org/html/rfc4594#section-4.7 in addition to the definition of the Assured Forwarding PHB group https://tools.ietf.org/html/rfc2597, and for CS1 (Lower Effort) there is https://tools.ietf.org/html/rfc3662 The first three bits of "AF21" map to the equivalent IEEEE 802.1D PCP, IEEE 802.11e, MPLS EXP/CoS and IP Precedence value of 2 (also known as "Immediate", or "AC_BE"), and CS1's first 3 bits map to IEEEE 802.1D PCP, IEEE 802.11e, MPLS/CoS and IP Precedence value 1 ("Background" or "AC_BK"). OK deraadt@, "no objection" djm@ OpenBSD-Commit-ID: d11d2a4484f461524ef0c20870523dfcdeb52181
2018-02-26upstream: Add experimental support for PQC XMSS keys (Extendedmarkus@openbsd.org
Hash-Based Signatures) The code is not compiled in by default (see WITH_XMSS in Makefile.inc) Joint work with stefan-lukas_gazdag at genua.eu See https://tools.ietf.org/html/draft-irtf-cfrg-xmss-hash-based-signatures-12 ok djm@ OpenBSD-Commit-ID: ef3eccb96762a5d6f135d7daeef608df7776a7ac
2018-02-23upstream: Add BindInterface ssh_config directive and -Bdjm@openbsd.org
command-line argument to ssh(1) that directs it to bind its outgoing connection to the address of the specified network interface. BindInterface prefers to use addresses that aren't loopback or link- local, but will fall back to those if no other addresses of the required family are available on that interface. Based on patch by Mike Manning in bz#2820, ok dtucker@ OpenBSD-Commit-ID: c5064d285c2851f773dd736a2c342aa384fbf713
2017-12-07upstream commitdtucker@openbsd.org
Replace atoi and strtol conversions for integer arguments to config keywords with a checking wrapper around strtonum. This will prevent and flag invalid and negative arguments to these keywords. ok djm@ OpenBSD-Commit-ID: 99ae3981f3d608a219ccb8d2fff635ae52c17998
2017-10-23upstream commitmillert@openbsd.org
Add URI support to ssh, sftp and scp. For example ssh://user@host or sftp://user@host/path. The connection parameters described in draft-ietf-secsh-scp-sftp-ssh-uri-04 are not implemented since the ssh fingerprint format in the draft uses md5 with no way to specify the hash function type. OK djm@ Upstream-ID: 4ba3768b662d6722de59e6ecb00abf2d4bf9cacc
2017-09-22upstream commitmarkus@openbsd.org
Add 'reverse' dynamic forwarding which combines dynamic forwarding (-D) with remote forwarding (-R) where the remote-forwarded port expects SOCKS-requests. The SSH server code is unchanged and the parsing happens at the SSH clients side. Thus the full SOCKS-request is sent over the forwarded channel and the client parses c->output. Parsing happens in channel_before_prepare_select(), _before_ the select bitmask is computed in the pre[] handlers, but after network input processing in the post[] handlers. help and ok djm@ Upstream-ID: aa25a6a3851064f34fe719e0bf15656ad5a64b89
2017-09-04upstream commitdjm@openbsd.org
Expand ssh_config's StrictModes option with two new settings: StrictModes=accept-new will automatically accept hitherto-unseen keys but will refuse connections for changed or invalid hostkeys. StrictModes=off is the same as StrictModes=no Motivation: StrictModes=no combines two behaviours for host key processing: automatically learning new hostkeys and continuing to connect to hosts with invalid/changed hostkeys. The latter behaviour is quite dangerous since it removes most of the protections the SSH protocol is supposed to provide. Quite a few users want to automatically learn hostkeys however, so this makes that feature available with less danger. At some point in the future, StrictModes=no will change to be a synonym for accept-new, with its current behaviour remaining available via StrictModes=off. bz#2400, suggested by Michael Samuel; ok markus Upstream-ID: 0f55502bf75fc93a74fb9853264a8276b9680b64
2017-05-31upstream commitbluhm@openbsd.org
Add RemoteCommand option to specify a command in the ssh config file instead of giving it on the client's command line. This command will be executed on the remote host. The feature allows to automate tasks using ssh config. OK markus@ Upstream-ID: 5d982fc17adea373a9c68cae1021ce0a0904a5ee
2017-05-20upstream commitdjm@openbsd.org
there's no reason to artificially limit the key path here, just check that it fits PATH_MAX; spotted by Matthew Patton Upstream-ID: 858addaf2009c9cf04d80164a41b2088edb30b58
2017-05-01upstream commitdjm@openbsd.org
remove SSHv1 configuration options and man pages bits ok markus@ Upstream-ID: 84638c23546c056727b7a7d653c72574e0f19424
2017-05-01upstream commitdjm@openbsd.org
remove SSHv1 ciphers; ok markus@ Upstream-ID: e5ebc5e540d7f23a8c1266db1839794d4d177890
2017-05-01upstream commitdjm@openbsd.org
remove options.protocol and client Protocol configuration knob ok markus@ Upstream-ID: 5a967f5d06e2d004b0235457b6de3a9a314e9366
2017-05-01upstream commitdjm@openbsd.org
unifdef WITH_SSH1 ok markus@ Upstream-ID: 9716e62a883ef8826c57f4d33b4a81a9cc7755c7
2017-04-28upstream commitdtucker@openbsd.org
Add SyslogFacility option to ssh(1) matching the equivalent option in sshd(8). bz#2705, patch from erahn at arista.com, ok djm@ Upstream-ID: d5115c2c0193ceb056ed857813b2a7222abda9ed
2017-03-10upstream commitdjm@openbsd.org
better match sshd config parser behaviour: fatal() if line is overlong, increase line buffer to match sshd's; bz#2651 reported by Don Fong; ok dtucker@ Upstream-ID: b175ae7e0ba403833f1ee566edf10f67443ccd18
2017-03-10upstream commitdtucker@openbsd.org
Plug mem leak on GLOB_NOMATCH case. From jjelen at redhat.com via bz#2687, ok djm@ Upstream-ID: 8016a7ae97719d3aa55fb723fc2ad3200058340d
2017-02-04upstream commitdjm@openbsd.org
support =- for removing methods from algorithms lists, e.g. Ciphers=-*cbc; suggested by Cristian Ionescu-Idbohrn in bz#2671 "I like it" markus@ Upstream-ID: c78c38f9f81a963b33d0eade559f6048add24a6d
2017-02-03upstream commitdjm@openbsd.org
allow form-feed characters at EOL; bz#2431 ok dtucker@ Upstream-ID: 1f453afaba6da2ae69d6afdf1ae79a917552f1a2
2017-01-30upstream commitdjm@openbsd.org
small cleanup post SSHv1 removal: remove SSHv1-isms in commented examples reorder token table to group deprecated and compile-time conditional tokens better fix config dumping code for some compile-time conditional options that weren't being correctly skipped (SSHv1 and PKCS#11) Upstream-ID: f2e96b3cb3158d857c5a91ad2e15925df3060105
2017-01-30upstream commitdjm@openbsd.org
some explicit NULL tests when dumping configured forwardings; from Karsten Weiss Upstream-ID: 40957b8dea69672b0e50df6b4a91a94e3e37f72d
2017-01-30upstream commitdjm@openbsd.org
fix previous Upstream-ID: c107d6a69bc22325d79fbf78a2a62e04bcac6895
2017-01-30upstream commitdjm@openbsd.org
show a useful error message when included config files can't be opened; bz#2653, ok dtucker@ Upstream-ID: f598b73b5dfe497344cec9efc9386b4e5a3cb95b
2016-10-26upstream commitjsg@openbsd.org
Fix logic in add_local_forward() that inverted a test when code was refactored out into bind_permitted(). This broke ssh port forwarding for non-priv ports as a non root user. ok dtucker@ 'looks good' deraadt@ Upstream-ID: ddb8156ca03cc99997de284ce7777536ff9570c9
2016-10-24upstream commitdtucker@openbsd.org
Factor out "can bind to low ports" check into its own function. This will make it easier for Portable to support platforms with permissions models other than uid==0 (eg bz#2625). ok djm@, "doesn't offend me too much" deraadt@. Upstream-ID: 86213df4183e92b8f189a6d2dac858c994bfface
2016-08-29upstream commitdjm@openbsd.org
remove superfluous NOTREACHED comment Upstream-ID: a7485c1f1be618e8c9e38fd9be46c13b2d03b90c
2016-07-22upstream commitdjm@openbsd.org
reverse the order in which -J/JumpHost proxies are visited to be more intuitive and document reported by and manpage bits naddy@ Upstream-ID: 3a68fd6a841fd6cf8cedf6552a9607ba99df179a
2016-07-22upstream commitnaddy@openbsd.org
Do not clobber the global jump_host variables when parsing an inactive configuration. ok djm@ Upstream-ID: 5362210944d91417d5976346d41ac0b244350d31
2016-07-15upstream commitdjm@openbsd.org
Add a ProxyJump ssh_config(5) option and corresponding -J ssh(1) command-line flag to allow simplified indirection through a SSH bastion or "jump host". These options construct a proxy command that connects to the specified jump host(s) (more than one may be specified) and uses port-forwarding to establish a connection to the next destination. This codifies the safest way of indirecting connections through SSH servers and makes it easy to use. ok markus@ Upstream-ID: fa899cb8b26d889da8f142eb9774c1ea36b04397
2016-06-08upstream commitdtucker@openbsd.org
Allow ExitOnForwardFailure and ClearAllForwardings to be overridden when using ssh -W (but still default to yes in that case). bz#2577, ok djm@. Upstream-ID: 4b20c419e93ca11a861c81c284090cfabc8c54d4
2016-06-08upstream commitdtucker@openbsd.org
Move the host and port used by ssh -W into the Options struct. This will make future changes a bit easier. ok djm@ Upstream-ID: 151bce5ecab2fbedf0d836250a27968d30389382
2016-05-19upstream commitmarkus@openbsd.org
allow setting IdentityAgent to SSH_AUTH_SOCK; ok djm@ Upstream-ID: 20c508480d8db3eef18942c0fc39b1fcf25652ac
2016-05-05upstream commitmarkus@openbsd.org
IdentityAgent for specifying specific agent sockets; ok djm@ Upstream-ID: 3e6a15eb89ea0fd406f108826b7dc7dec4fbfac1
2016-04-15upstream commitdjm@openbsd.org
Include directive for ssh_config(5); feedback & ok markus@ Upstream-ID: ae3b76e2e343322b9f74acde6f1e1c5f027d5fff
2016-04-08Remove NO_IPPORT_RESERVED_CONCEPTDarren Tucker
Replace by defining IPPORT_RESERVED to zero on Cygwin, which should have the same effect without causing problems syncing patches with OpenBSD. Resync the two affected functions with OpenBSD. ok djm, sanity checked by Corinna.
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