Age | Commit message (Collapse) | Author |
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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: 2016-08-07
Patch-Name: gssapi.patch
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add knob to relax GSSAPI host credential check for
multihomed hosts bz#928, patch by Simon Wilkinson; ok dtucker
(kerberos/GSSAPI is not compiled by default on OpenBSD)
Upstream-ID: 15ddf1c6f7fd9d98eea9962f480079ae3637285d
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Reduce use of <sys/param.h> and transition to <limits.h>
throughout. ok djm markus
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[gss-serv.c session.c ssh-keygen.c]
standardise on NI_MAXHOST for gethostname() string lengths; about
1/2 the cases were using it already. Fixes bz#2239 en passant
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[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@
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[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()
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[auth-krb5.c gss-serv-krb5.c gss-serv.c]
fix kerberos/GSSAPI deprecation warnings and linking; "looks okay" millert@
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[gss-serv.c]
prevent post-auth resource exhaustion (int overflow leading to 4GB malloc);
report Adam Zabrock; ok djm@, deraadt@
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[auth-options.c auth1.c channels.c channels.h clientloop.c gss-serv.c]
[monitor.c monitor_wrap.c nchan.c servconf.c serverloop.c session.c]
[ssh.c sshd.c]
Implement a channel success/failure status confirmation callback
mechanism. Each channel maintains a queue of callbacks, which will
be drained in order (RFC4253 guarantees confirm messages are not
reordered within an channel).
Also includes a abandonment callback to clean up if a channel is
closed without sending confirmation messages. This probably
shouldn't happen in compliant implementations, but it could be
abused to leak memory.
ok markus@ (as part of a larger diff)
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[ssh-gss.h gss-serv.c gss-genr.c]
relocate server-only GSSAPI code from libssh to server; bz #1225
patch from simon AT sxw.org.uk; ok markus@ dtucker@
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[auth-rsa.c auth-shadow.c auth-sia.c auth1.c auth2-chall.c]
[auth2-gss.c auth2-kbdint.c auth2-none.c authfd.c authfile.c]
[cipher-3des1.c cipher-aes.c cipher-bf1.c cipher-ctr.c clientloop.c]
[dh.c dns.c entropy.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c]
[kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c loginrec.c mac.c]
[md5crypt.c monitor.c monitor_wrap.c readconf.c rsa.c]
[scard-opensc.c scard.c session.c ssh-add.c ssh-agent.c ssh-dss.c]
[ssh-keygen.c ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c]
[sshconnect1.c sshconnect2.c sshd.c rc4.diff]
[openbsd-compat/bsd-cray.c openbsd-compat/port-aix.c]
[openbsd-compat/port-linux.c openbsd-compat/port-solaris.c]
[openbsd-compat/port-uw.c]
Lots of headers for SCO OSR6, mainly adding stdarg.h for log.h;
compile problems reported by rac AT tenzing.org
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[OVERVIEW atomicio.c atomicio.h auth-bsdauth.c auth-chall.c auth-krb5.c]
[auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c]
[auth-rsa.c auth-skey.c auth.c auth.h auth1.c auth2-chall.c auth2-gss.c]
[auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c ]
[auth2-pubkey.c auth2.c authfd.c authfd.h authfile.c bufaux.c bufbn.c]
[buffer.c buffer.h canohost.c channels.c channels.h cipher-3des1.c]
[cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
[compress.c deattack.c dh.c dispatch.c dns.c dns.h fatal.c groupaccess.c]
[groupaccess.h gss-genr.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c]
[kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c]
[key.h log.c log.h mac.c match.c md-sha256.c misc.c misc.h moduli.c]
[monitor.c monitor_fdpass.c monitor_mm.c monitor_mm.h monitor_wrap.c]
[monitor_wrap.h msg.c nchan.c packet.c progressmeter.c readconf.c]
[readconf.h readpass.c rsa.c scard.c scard.h scp.c servconf.c servconf.h]
[serverloop.c session.c session.h sftp-client.c sftp-common.c]
[sftp-common.h sftp-glob.c sftp-server.c sftp.c ssh-add.c ssh-agent.c]
[ssh-dss.c ssh-gss.h ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rsa.c]
[ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c]
[sshd.c sshlogin.c sshlogin.h sshpty.c sshpty.h sshtty.c ttymodes.c]
[uidswap.c uidswap.h uuencode.c uuencode.h xmalloc.c xmalloc.h]
[loginrec.c loginrec.h openbsd-compat/port-aix.c openbsd-compat/port-tun.h]
almost entirely get rid of the culture of ".h files that include .h files"
ok djm, sort of ok stevesk
makes the pain stop in one easy step
NB. portable commit contains everything *except* removing includes.h, as
that will take a fair bit more work as we move headers that are required
for portability workarounds to defines.h. (also, this step wasn't "easy")
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[canohost.c channels.c cipher-acss.c defines.h dns.c gss-genr.c]
[gss-serv-krb5.c gss-serv.c log.h loginrec.c logintest.c readconf.c]
[servconf.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rand-helper.c]
[ssh.c sshconnect.c sshd.c openbsd-compat/bindresvport.c]
[openbsd-compat/bsd-arc4random.c openbsd-compat/bsd-misc.c]
[openbsd-compat/getrrsetbyname.c openbsd-compat/glob.c]
[openbsd-compat/mktemp.c openbsd-compat/port-linux.c]
[openbsd-compat/port-tun.c openbsd-compat/readpassphrase.c]
[openbsd-compat/setproctitle.c openbsd-compat/xmmap.c]
make the portable tree compile again - sprinkle unistd.h and string.h
back in. Don't redefine __unused, as it turned out to be used in
headers on Linux, and replace its use in auth-pam.c with ARGSUSED
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[atomicio.c auth-options.c auth-passwd.c auth-rhosts.c auth-rsa.c]
[auth.c auth1.c auth2-chall.c auth2-hostbased.c auth2-passwd.c auth2.c]
[authfd.c authfile.c bufaux.c bufbn.c buffer.c canohost.c channels.c]
[cipher-3des1.c cipher-bf1.c cipher-ctr.c cipher.c clientloop.c]
[compat.c deattack.c dh.c dns.c gss-genr.c gss-serv.c hostfile.c]
[includes.h kex.c kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c log.c]
[mac.c match.c md-sha256.c misc.c moduli.c monitor.c monitor_fdpass.c]
[monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c rsa.c]
[progressmeter.c readconf.c readpass.c scp.c servconf.c serverloop.c]
[session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c sftp.c]
[ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
[ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c sshconnect2.c]
[sshd.c sshlogin.c sshpty.c ttymodes.c uidswap.c xmalloc.c]
move #include <string.h> out of includes.h
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[gss-serv-krb5.c gss-serv.c]
no "servconf.h" needed here
(gss-serv-krb5.c change not applied, portable needs the server options)
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[authfd.c bufaux.c deattack.c gss-serv.c mac.c misc.c misc.h]
[monitor_wrap.c msg.c packet.c sftp-client.c sftp-server.c ssh-agent.c]
replace {GET,PUT}_XXBIT macros with functionally similar functions,
silencing a heap of lint warnings. also allows them to use
__bounded__ checking which can't be applied to macros; requested
by and feedback from deraadt@
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[atomicio.h auth-options.h auth.h auth2-gss.c authfd.h authfile.h]
[bufaux.h buffer.h canohost.h channels.h cipher.h clientloop.h]
[compat.h compress.h crc32.c crc32.h deattack.h dh.h dispatch.h]
[dns.c dns.h getput.h groupaccess.h gss-genr.c gss-serv-krb5.c]
[gss-serv.c hostfile.h includes.h kex.h key.h log.h mac.h match.h]
[misc.h monitor.h monitor_fdpass.h monitor_mm.h monitor_wrap.h msg.h]
[myproposal.h packet.h pathnames.h progressmeter.h readconf.h rsa.h]
[scard.h servconf.h serverloop.h session.h sftp-common.h sftp.h]
[ssh-gss.h ssh.h ssh1.h ssh2.h sshconnect.h sshlogin.h sshpty.h]
[ttymodes.h uidswap.h uuencode.h xmalloc.h]
standardise spacing in $OpenBSD$ tags; requested by deraadt@
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[gss-serv.c]
last lot of GSSAPI related leaks detected by Coverity via
elad AT netbsd.org; reviewed by simon AT sxw.org.uk; deraadt@ ok
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[gss-serv.c monitor.c]
small KNF
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[auth2-gss.c gss-genr.c gss-serv.c monitor.c]
KNF; ok djm@
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[gss-serv-krb5.c gss-serv.c]
unused declarations; ok deraadt@
(id sync only for gss-serv-krb5.c)
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[gss-serv.c]
spelling in comments
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[auth2-gss.c gss-genr.c gss-serv.c]
remove unneeded #includes; ok markus@
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[gss-serv.c]
typo
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- djm@cvs.openbsd.org 2005/08/30 22:08:05
[gss-serv.c sshconnect2.c]
destroy credentials if krb5_kuserok() call fails. Stops credentials being
delegated to users who are not authorised for GSSAPIAuthentication when
GSSAPIDeletegateCredentials=yes and another authentication mechanism
succeeds; bz#1073 reported by paul.moore AT centrify.com, fix by
simon AT sxw.org.uk, tested todd@ biorn@ jakob@; ok deraadt@
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[auth-rh-rsa.c auth-rhosts.c auth2-chall.c auth2-gss.c channels.c]
[cipher-ctr.c gss-genr.c gss-serv.c kex.c moduli.c readconf.c]
[serverloop.c session.c sftp-client.c sftp.c ssh-add.c ssh-keygen.c]
[sshconnect.c sshconnect2.c]
knf says that a 2nd level indent is four (not three or five) spaces
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[auth-rsa.c auth.c auth1.c auth2-chall.c auth2-gss.c authfd.c authfile.c]
[bufaux.c canohost.c channels.c cipher.c clientloop.c dns.c gss-serv.c]
[kex.c kex.h key.c mac.c match.c misc.c packet.c packet.h scp.c]
[servconf.c session.c session.h sftp-client.c sftp-server.c sftp.c]
[ssh-keyscan.c ssh-rsa.c sshconnect.c sshconnect1.c sshconnect2.c sshd.c]
make this -Wsign-compare clean; ok avsm@ markus@
NB. auth1.c changes not committed yet (conflicts with uncommitted sync)
NB2. more work may be needed to make portable Wsign-compare clean
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[auth2-gss.c gss-genr.c gss-serv.c monitor.c monitor.h monitor_wrap.c]
[monitor_wrap.h sshconnect2.c ssh-gss.h]
replace "gssapi" with "gssapi-with-mic"; from Simon Wilkinson;
test + ok jakob.
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[Makefile.in auth1.c auth2.c auth.c auth.h auth-krb5.c canohost.c
cleanup.c clientloop.c fatal.c gss-serv.c log.c log.h monitor.c monitor.h
monitor_wrap.c monitor_wrap.h packet.c serverloop.c session.c session.h
ssh-agent.c sshd.c]
replace fatal_cleanup() and linked list of fatal callbacks with static
cleanup_exit() function. re-refine cleanup_exit() where appropriate,
allocate sshd's authctxt eary to allow simpler cleanup in sshd.
tested by many, ok deraadt@
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[gss-serv.c]
whitspace KNF
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[gss-serv.c]
correct string termination in parse_ename(); sxw@inf.ed.ac.uk
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[auth2.c auth2-gss.c auth.h compat.c compat.h gss-genr.c gss-serv-krb5.c
gss-serv.c monitor.c monitor.h monitor_wrap.c monitor_wrap.h readconf.c
readconf.h servconf.c servconf.h session.c session.h ssh-gss.h
ssh_config.5 sshconnect2.c sshd_config sshd_config.5]
support GSS API user authentication; patches from Simon Wilkinson,
stripped down and tested by Jakob and myself.
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