Age | Commit message (Collapse) | Author |
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Patch from knweiss at gmail.com via -portable.
OpenBSD-Commit-ID: 2577465442f761a39703762c4f87a8dfcb918b4b
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SSH1 protocol. Patch from yumkam at gmail.com, ok deraadt.
OpenBSD-Commit-ID: cceda5876c5ba6b4d8abcd52335329198cee3240
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keying in debug messages. Previously it would be difficult to tell which
direction it was talking about
OpenBSD-Commit-ID: c2b71bfcceb2a7389b9d0b497fb2122a406a522d
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rather than pointer+len
suggested by me; implemented by markus@ ok me
OpenBSD-Commit-ID: 994f33c464f4a9e0f1d21909fa3e379f5a0910f0
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parsing rather than make the caller do it. Saves a lot of boilerplate code.
from markus@ ok djm@
OpenBSD-Commit-ID: 576bf784f9a240f5a1401f7005364e59aed3bce9
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use this to give packet-related fatal error messages more context (esp. the
remote endpoint) ok markus@
OpenBSD-Commit-ID: de57211f9543426b515a8a10a4f481666b2b2a50
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Patch from Markus Schmidt; ok markus@
OpenBSD-Commit-ID: 7877f1b82e249986f1ef98d0ae76ce987d332bdd
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ssh->kex and factor out the banner exchange. This eliminates some common code
from the client and server.
Also be more strict about handling \r characters - these should only
be accepted immediately before \n (pointed out by Jann Horn).
Inspired by a patch from Markus Schmidt.
(lots of) feedback and ok markus@
OpenBSD-Commit-ID: 1cc7885487a6754f63641d7d3279b0941890275b
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Some versions of OpenSSL have "free_func" in their headers, which zlib
typedefs. Including openssl after zlib (eg via sshkey.h) results in
"syntax error before `free_func'", which this fixes.
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OpenBSD-Commit-ID: 6c3ba22be53e753c899545f771e8399fc93cd844
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OpenBSD-Commit-ID: 60cb0356114acc7625ab85105f6f6a7cd44a8d05
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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
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Only delayed compression is supported nowadays.
ok markus@
OpenBSD-Commit-ID: 5b1dbaf3d9a4085aaa10fec0b7a4364396561821
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Support for this has been removed in 2016.
COMP_DELAYED will be renamed in a later commit.
ok markus@
OpenBSD-Commit-ID: 6a99616c832627157113fcb0cf5a752daf2e6b58
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ok markus@
OpenBSD-Commit-ID: 9d34cf2f59aca5422021ae2857190578187dc2b4
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the ssh->state has been torn down; bz#2773
OpenBSD-Commit-ID: 167f12523613ca3d16d7716a690e7afa307dc7eb
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the error path instead of trying to read from the socket on the way out,
which resets errno and causes the true error to be misreported. ok djm@
OpenBSD-Commit-ID: 2614edaadbd05a957aa977728aa7a030af7c6f0a
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Spotted using https://github.com/lucasdemarchi/codespell
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pass kex->hostkey_alg and kex->hostkey_nid from pre-auth
to post-auth unpriviledged child processes; ok markus@
OpenBSD-Commit-ID: 4a35bc7af0a5f8a232d1361f79f4ebc376137302
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Put remote client info back into the ClientAlive
connection termination message. Based in part on diff from lars.nooden at
gmail, ok djm
OpenBSD-Commit-ID: 80a0f619a29bbf2f32eb5297a69978a0e05d0ee0
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Add monotime_ts and monotime_tv that return monotonic
timespec and timeval respectively. Replace calls to gettimeofday() in packet
timing with monotime_tv so that the callers will work over a clock step.
Should prevent integer overflow during clock steps reported by wangle6 at
huawei.com. "I like" markus@
OpenBSD-Commit-ID: 74d684264814ff806f197948b87aa732cb1b0b8a
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add sshd_config RDomain keyword to place sshd and the
subsequent user session (including the shell and any TCP/IP forwardings) into
the specified rdomain(4)
ok markus@
Upstream-ID: be2358e86346b5cacf20d90f59f980b87d1af0f5
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log debug messages sent to peer; ok deraadt markus
Upstream-ID: 3b4fdc0a06ea5083f61d96e20043000f477103d9
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refactor channels.c
Move static state to a "struct ssh_channels" that is allocated at
runtime and tracked as a member of struct ssh.
Explicitly pass "struct ssh" to all channels functions.
Replace use of the legacy packet APIs in channels.c.
Rework sshd_config PermitOpen handling: previously the configuration
parser would call directly into the channels layer. After the refactor
this is not possible, as the channels structures are allocated at
connection time and aren't available when the configuration is parsed.
The server config parser now tracks PermitOpen itself and explicitly
configures the channels code later.
ok markus@
Upstream-ID: 11828f161656b965cc306576422613614bea2d8f
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Allow IPQoS=none in ssh/sshd to not set an explicit
ToS/DSCP value and just use the operating system default; ok dtucker@
Upstream-ID: 77906ff8c7b660b02ba7cb1e47b17d66f54f1f7e
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don't pass pointer to struct sshcipher between privsep
processes, just redo the lookup in each using the already-passed cipher name.
bz#2704 based on patch from Brooks Davis; ok markus dtucker
Upstream-ID: 2eab434c09bdf549dafd7da3e32a0d2d540adbe0
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Add comments referring to the relevant RFC sections for
rekeying behaviour.
Upstream-ID: 6fc8e82485757a27633f9175ad00468f49a07d40
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Fix compression output stats broken in rev 1.201. Patch
originally by Russell Coker via Debian bug #797964 and Christoph Biedl. ok
djm@
Upstream-ID: 83a1903b95ec2e4ed100703debb4b4a313b01016
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some warnings spotted by clang; ok markus@
Upstream-ID: 24381d68ca249c5cee4388ceb0f383fa5b43991b
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These shutdown() SHUT_RDWR are not needed before close()
ok djm markus claudio
Upstream-ID: 36f13ae4ba10f5618cb9347933101eb4a98dbcb5
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clear session keys from memory; ok djm@
Upstream-ID: ecd178819868975affd5fd6637458b7c712b6a0f
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helps if I commit the correct version of the file. fix
missing return statement.
Upstream-ID: c86394a3beeb1ec6611e659bfa830254f325546c
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I was too aggressive with the scalpel in the last commit;
unbreak sshd, spotted quickly by naddy@
Upstream-ID: fb7e75d2b2c7e6ca57dee00ca645e322dd49adbf
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As promised in last release announcement: remove
support for Blowfish, RC4 and CAST ciphers. ok markus@ deraadt@
Upstream-ID: 21f8facdba3fd8da248df6417000867cec6ba222
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remove miscellaneous SSH1 leftovers; ok markus@
Upstream-ID: af23696022ae4d45a1abc2fb8b490d8d9dd63b7c
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obliterate ssh1.h and some dead code that used it
ok markus@
Upstream-ID: 1ca9159a9fb95618f9d51e069ac8e1131a087343
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remove the (in)famous SSHv1 CRC compensation attack
detector.
Despite your cameo in The Matrix movies, you will not be missed.
ok markus
Upstream-ID: 44261fce51a56d93cdb2af7b6e184be629f667e0
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remove SSHv1 support from packet and buffer APIs
ok markus@
Upstream-ID: bfc290053d40b806ecac46317d300677d80e1dc9
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remove compat20/compat13/compat15 variables
ok markus@
Upstream-ID: 43802c035ceb3fef6c50c400e4ecabf12354691c
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unifdef WITH_SSH1 ok markus@
Upstream-ID: 9716e62a883ef8826c57f4d33b4a81a9cc7755c7
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Don't count the initial block twice when computing how
many bytes to discard for the work around for the attacks against CBC-mode.
ok djm@; report from Jean Paul, Kenny, Martin and Torben @ RHUL
Upstream-ID: f445f509a4e0a7ba3b9c0dae7311cb42458dc1e2
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small memleak: free fd_set on connection timeout (though
we are heading to exit anyway). From Tom Rix in bz#2683
Upstream-ID: 10e3dadbb8199845b66581473711642d9e6741c4
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add ssh_packet_set_log_preamble() to allow inclusion of a
preamble string in disconnect messages; ok markus@
Upstream-ID: 34cb41182cd76d414c214ccb01c01707849afead
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Make ssh_packet_set_rekey_limits take u32 for the number of
seconds until rekeying (negative values are rejected at config parse time).
This allows the removal of some casts and a signed vs unsigned comparison
warning.
rekey_time is cast to int64 for the comparison which is a no-op
on OpenBSD, but should also do the right thing in -portable on
anything still using 32bit time_t (until the system time actually
wraps, anyway).
some early guidance deraadt@, ok djm@
Upstream-ID: c9f18613afb994a07e7622eb326f49de3d123b6c
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Add a per-packet input hook that is called with the
decrypted packet contents. This will be used for fuzzing; ok markus@
Upstream-ID: a3221cee6b1725dd4ae1dd2c13841b4784cb75dc
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ssh proxy mux mode (-O proxy; idea from Simon Tatham): - mux
client speaks the ssh-packet protocol directly over unix-domain socket. - mux
server acts as a proxy, translates channel IDs and relays to the server. - no
filedescriptor passing necessary. - combined with unix-domain forwarding it's
even possible to run mux client and server on different machines. feedback
& ok djm@
Upstream-ID: 666a2fb79f58e5c50e246265fb2b9251e505c25b
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put back some pre-auth zlib bits that I shouldn't have
removed - they are still used by the client. Spotted by naddy@
Upstream-ID: 80919468056031037d56a1f5b261c164a6f90dc2
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restore pre-auth compression support in the client -- the
previous commit was intended to remove it from the server only.
remove a few server-side pre-auth compression bits that escaped
adjust wording of Compression directive in sshd_config(5)
pointed out by naddy@ ok markus@
Upstream-ID: d23696ed72a228dacd4839dd9f2dec424ba2016b
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Remove support for pre-authentication compression. Doing
compression early in the protocol probably seemed reasonable in the 1990s,
but today it's clearly a bad idea in terms of both cryptography (cf. multiple
compression oracle attacks in TLS) and attack surface.
Moreover, to support it across privilege-separation zlib needed
the assistance of a complex shared-memory manager that made the
required attack surface considerably larger.
Prompted by Guido Vranken pointing out a compiler-elided security
check in the shared memory manager found by Stack
(http://css.csail.mit.edu/stack/); ok deraadt@ markus@
NB. pre-auth authentication has been disabled by default in sshd
for >10 years.
Upstream-ID: 32af9771788d45a0779693b41d06ec199d849caf
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move inbound NEWKEYS handling to kex layer; otherwise
early NEWKEYS causes NULL deref; found by Robert Swiecki/honggfuzz; fixed
with & ok djm@
Upstream-ID: 9a68b882892e9f51dc7bfa9f5a423858af358b2f
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