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2020-06-07upstream: Do not call process_queued_listen_addrs() for everydjm@openbsd.org
included file from sshd_config; patch from Jakub Jelen OpenBSD-Commit-ID: 0ff603d6f06a7fab4881f12503b53024799d0a49 Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=0a9a611619b0a1fecd0195ec86a9885f5d681c84 Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=3169 Bug-Debian: https://bugs.debian.org/962035 Bug-Ubuntu: https://bugs.launchpad.net/bugs/1876320 Last-Update: 2020-06-07 Patch-Name: avoid-extra-ports.patch
2020-06-07Revert "upstream: Update default IPQoS in ssh(1), sshd(8) to DSCP AF21 for"Colin Watson
This reverts commit 5ee8448ad7c306f05a9f56769f95336a8269f379. The IPQoS default changes have some unfortunate interactions with iptables (see https://bugs.debian.org/923880) and VMware, so I'm temporarily reverting them until those have been fixed. Bug-Debian: https://bugs.debian.org/923879 Bug-Debian: https://bugs.debian.org/926229 Bug-Ubuntu: https://bugs.launchpad.net/bugs/1822370 Last-Update: 2019-04-08 Patch-Name: revert-ipqos-defaults.patch
2020-06-07Add DebianBanner server configuration optionKees Cook
Setting this to "no" causes sshd to omit the Debian revision from its initial protocol handshake, for those scared by package-versioning.patch. Bug-Debian: http://bugs.debian.org/562048 Forwarded: not-needed Last-Update: 2020-06-07 Patch-Name: debian-banner.patch
2020-06-07Accept 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
2020-06-07GSSAPI 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. Author: Simon Wilkinson <simon@sxw.org.uk> Author: Colin Watson <cjwatson@debian.org> Author: Jakub Jelen <jjelen@redhat.com> Origin: other, https://github.com/openssh-gsskex/openssh-gsskex/commits/debian/master Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1242 Last-Updated: 2020-06-07 Patch-Name: gssapi.patch
2020-04-24Error out if given RDomain if unsupported.Darren Tucker
If the config contained 'RDomain %D' on a platform that did not support it, the error would not be detected until runtime resulting in a broken sshd. Detect this earlier and error out if found. bz#3126, based on a patch from jjelen at redhat.com, tweaks and ok djm@
2020-04-17sys/sysctl.h is only used on OpenBSDDamien Miller
so change the preprocessor test used to include it to check __OpenBSD__, matching the code that uses the symbols it declares.
2020-04-17upstream: make IgnoreRhosts a tri-state option: "yes" ignoredjm@openbsd.org
rhosts/shosts, "no" allow rhosts/shosts or (new) "shosts-only" to allow .shosts files but not .rhosts. ok dtucker@ OpenBSD-Commit-ID: d08d6930ed06377a80cf53923c1955e9589342e9
2020-04-17upstream: allow the IgnoreRhosts directive to appear anywhere in adjm@openbsd.org
sshd_config, not just before any Match blocks; bz3148, ok dtucker@ OpenBSD-Commit-ID: e042467d703bce640b1f42c5d1a62bf3825736e8
2020-03-13upstream: fix relative includes in sshd_config; ok djmmarkus@openbsd.org
OpenBSD-Commit-ID: fa29b0da3c93cbc3a1d4c6bcd58af43c00ffeb5b
2020-02-01upstream: Add a sshd_config "Include" directive to allow inclusiondjm@openbsd.org
of files. This has sensible semantics wrt Match blocks and accepts glob(3) patterns to specify the included files. Based on patch by Jakub Jelen in bz2468; feedback and ok markus@ OpenBSD-Commit-ID: 36ed0e845b872e33f03355b936a4fff02d5794ff
2020-01-23upstream: Make zlib optional. This adds a "ZLIB" build time optiondtucker@openbsd.org
that allows building without zlib compression and associated options. With feedback from markus@, ok djm@ OpenBSD-Commit-ID: 44c6e1133a90fd15a3aa865bdedc53bab28b7910
2020-01-23upstream: Remove unsupported algorithms from list of defaults at rundtucker@openbsd.org
time and remove ifdef and distinct settings for OPENSSL=no case. This will make things much simpler for -portable where the exact set of algos depends on the configuration of both OpenSSH and the libcrypto it's linked against (if any). ok djm@ OpenBSD-Commit-ID: e0116d0183dcafc7a9c40ba5fe9127805c5dfdd2
2019-12-16upstream: don't treat HostKeyAgent=none as a path either; avoidsdjm@openbsd.org
spurious warnings from the cfgparse regress test OpenBSD-Commit-ID: ba49ea7a5c92b8a16cb9c2e975dbb163853afc54
2019-12-16upstream: do not attempt to find an absolute path for sshd_configdjm@openbsd.org
SecurityKeyProvider=internal - unbreaks cfgparse regress test OpenBSD-Commit-ID: d2ddcf525c0dc3c8339522360c10b3c70f1fd641
2019-12-16upstream: allow security keys to act as host keys as well as userdjm@openbsd.org
keys. Previously we didn't do this because we didn't want to expose the attack surface presented by USB and FIDO protocol handling, but now that this is insulated behind ssh-sk-helper there is less risk. ok markus@ OpenBSD-Commit-ID: 77b068dd133b8d87e0f010987bd5131e640ee64c
2019-11-25upstream: Add a sshd_config PubkeyAuthOptions directivedjm@openbsd.org
This directive has a single valid option "no-touch-required" that causes sshd to skip checking whether user presence was tested before a security key signature was made (usually by the user touching the key). ok markus@ OpenBSD-Commit-ID: 46e434a49802d4ed82bc0aa38cb985c198c407de
2019-11-01upstream: Separate myproposal.h userauth pubkey typesdjm@openbsd.org
U2F/FIDO keys are not supported for host authentication, so we need a separate list for user keys. feedback & ok markus@ OpenBSD-Commit-ID: 7fe2e6ab85f9f2338866e5af8ca2d312abbf0429
2019-09-08upstream: Allow prepending a list of algorithms to the default setnaddy@openbsd.org
by starting the list with the '^' character, e.g. HostKeyAlgorithms ^ssh-ed25519 Ciphers ^aes128-gcm@openssh.com,aes256-gcm@openssh.com ok djm@ dtucker@ OpenBSD-Commit-ID: 1e1996fac0dc8a4b0d0ff58395135848287f6f97
2019-05-08upstream: When running sshd -T, assume any attibute not provided bydtucker@openbsd.org
-C does not match, which allows it to work when sshd_config contains a Match directive with or without -C. bz#2858, ok djm@ OpenBSD-Commit-ID: 1a701f0a33e3bc96753cfda2fe0b0378520b82eb
2019-03-26upstream: whitespacedjm@openbsd.org
OpenBSD-Commit-ID: 106e853ae8a477e8385bc53824d3884a8159db07
2019-03-08upstream: Move checks for lists of users or groups into their owndtucker@openbsd.org
function. This is a no-op on OpenBSD but will make things easier in -portable, eg on systems where these checks should be case-insensitive. ok djm@ OpenBSD-Commit-ID: 8bc9c8d98670e23f8eaaaefe29c1f98e7ba0487e
2019-02-22Cygwin: implement case-insensitive Unicode user and group name matchingCorinna Vinschen
The previous revert enabled case-insensitive user names again. This patch implements the case-insensitive user and group name matching. To allow Unicode chars, implement the matcher using wchar_t chars in Cygwin-specific code. Keep the generic code changes as small as possible. Cygwin: implement case-insensitive Unicode user and group name matching Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
2019-02-22Revert unintended parts of previous commit.Darren Tucker
2019-02-22Revert "[auth.c] On Cygwin, refuse usernames that have differences in case"Corinna Vinschen
This reverts commit acc9b29486dfd649dfda474e5c1a03b317449f1c. Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
2019-01-24upstream: Always initialize 2nd arg to hpdelim2. It populates thatdtucker@openbsd.org
*ONLY IF* there's a delimiter. If there's not (the common case) it checked uninitialized memory, which usually passed, but if not would cause spurious failures when the uninitialized memory happens to contain "/". ok deraadt. OpenBSD-Commit-ID: 4291611eaf2a53d4c92f4a57c7f267c9f944e0d3
2019-01-24upstream: Remove support for obsolete host/port syntax.dtucker@openbsd.org
host/port was added in 2001 as an alternative to host:port syntax for the benefit of IPv6 users. These days there are establised standards for this like [::1]:22 and the slash syntax is easily mistaken for CIDR notation, which OpenSSH now supports for some things. Remove the slash notation from ListenAddress and PermitOpen. bz#2335, patch from jjelen at redhat.com, ok markus@ OpenBSD-Commit-ID: fae5f4e23c51a368d6b2d98376069ac2b10ad4b7
2019-01-20upstream: convert servconf.c to new packet APIdjm@openbsd.org
with & ok markus@ OpenBSD-Commit-ID: 126553aecca302c9e02fd77e333b9cb217e623b4
2019-01-20upstream: begin landing remaining refactoring of packet parsingdjm@openbsd.org
API, started almost exactly six years ago. This change stops including the old packet_* API by default and makes each file that requires the old API include it explicitly. We will commit file-by-file refactoring to remove the old API in consistent steps. with & ok markus@ OpenBSD-Commit-ID: 93c98a6b38f6911fd1ae025a1ec57807fb4d4ef4
2018-11-19upstream: silence (to log level debug2) failure messages whendjm@openbsd.org
loading the default hostkeys. Hostkeys explicitly specified in the configuration or on the command-line are still reported as errors, and failure to load at least one host key remains a fatal error. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Based on patch from Dag-Erling Smørgrav via https://github.com/openssh/openssh-portable/pull/103 ok markus@ OpenBSD-Commit-ID: ffc2e35a75d1008effaf05a5e27425041c27b684
2018-11-16upstream: use path_absolute() for pathname checks; from Manoj Ampalamdjm@openbsd.org
OpenBSD-Commit-ID: 482ce71a5ea5c5f3bc4d00fd719481a6a584d925
2018-09-21upstream: actually make CASignatureAlgorithms available as a configdjm@openbsd.org
option OpenBSD-Commit-ID: 93fa7ff58314ed7b1ab7744090a6a91232e6ae52
2018-09-20upstream: Add sshd_config CASignatureAlgorithms option to allowdjm@openbsd.org
control over which signature algorithms a CA may use when signing certificates. In particular, this allows a sshd to ban certificates signed with RSA/SHA1. ok markus@ OpenBSD-Commit-ID: b05c86ef8b52b913ed48d54a9b9c1a7714d96bac
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.
2018-07-12upstream: remove legacy key emulation layer; ok djm@markus@openbsd.org
OpenBSD-Commit-ID: 2b1f9619259e222bbd4fe9a8d3a0973eafb9dd8d
2018-07-10upstream: sshd: switch config to sshbuf API; ok djm@markus@openbsd.org
OpenBSD-Commit-ID: 72b02017bac7feac48c9dceff8355056bea300bd
2018-07-10upstream: Revert previous two commitssf@openbsd.org
It turns out we still support pre-auth compression on the client. Therefore revert the previous two commits: date: 2018/07/06 09:06:14; author: sf; commitid: yZVYKIRtUZWD9CmE; Rename COMP_DELAYED to COMP_ZLIB Only delayed compression is supported nowadays. ok markus@ date: 2018/07/06 09:05:01; author: sf; commitid: rEGuT5UgI9f6kddP; Remove leftovers from pre-authentication compression Support for this has been removed in 2016. COMP_DELAYED will be renamed in a later commit. ok markus@ OpenBSD-Commit-ID: cdfef526357e4e1483c86cf599491b2dafb77772
2018-07-10upstream: Rename COMP_DELAYED to COMP_ZLIBsf@openbsd.org
Only delayed compression is supported nowadays. ok markus@ OpenBSD-Commit-ID: 5b1dbaf3d9a4085aaa10fec0b7a4364396561821
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
2018-07-03upstream: allow sshd_config PermitUserEnvironment to accept adjm@openbsd.org
pattern-list of whitelisted environment variable names in addition to yes|no. bz#1800, feedback and ok markus@ OpenBSD-Commit-ID: 77dc2b468e0bf04b53f333434ba257008a1fdf24
2018-06-19upstream: allow bare port numbers to appear in PermitListen directives,djm@openbsd.org
e.g. PermitListen 2222 8080 is equivalent to: PermitListen *:2222 *:8080 Some bonus manpage improvements, mostly from markus@ "looks fine" markus@ OpenBSD-Commit-ID: 6546b0cc5aab7f53d65ad0a348ca0ae591d6dd24
2018-06-09upstream: add a SetEnv directive for sshd_config to allow andjm@openbsd.org
administrator to explicitly specify environment variables set in sessions started by sshd. These override the default environment and any variables set by user configuration (PermitUserEnvironment, etc), but not the SSH_* variables set by sshd itself. ok markus@ OpenBSD-Commit-ID: b6a96c0001ccd7dd211df6cae9e961c20fd718c0
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
2018-06-07upstream: permitlisten option for authorized_keys; ok markus@djm@openbsd.org
OpenBSD-Commit-ID: 8650883018d7aa893173d703379e4456a222c672
2018-06-07upstream: Add a PermitListen directive to control which server-sidedjm@openbsd.org
addresses may be listened on when the client requests remote forwarding (ssh -R). This is the converse of the existing PermitOpen directive and this includes some refactoring to share much of its implementation. feedback and ok markus@ OpenBSD-Commit-ID: 15a931238c61a3f2ac74ea18a98c933e358e277f
2018-04-10upstream: lots of typos in comments/docs. Patch from Karsten Weissdjm@openbsd.org
after checking with codespell tool (https://github.com/lucasdemarchi/codespell) OpenBSD-Commit-ID: 373222f12d7ab606598a2d36840c60be93568528
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
2018-03-02upstream: missing #ifdef for _PATH_HOST_XMSS_KEY_FILE; report bymarkus@openbsd.org
jmc@ OpenBSD-Commit-ID: 9039cb69a3f9886bfef096891a9e7fcbd620280b
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
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