errors. This ensures that the logged errors are consistent with other
transport- layer errors and that the relevant IP addresses are logged. bz3129
ok dtucker@
OpenBSD-Commit-ID: 2c22891f0b9e1a6cd46771cedbb26ac96ec2e6ab
sigaction(2). This wrapper blocks all other signals during the handler
preventing races between handlers, and sets SA_RESTART which should reduce
the potential for short read/write operations.
OpenBSD-Commit-ID: 5e047663fd77a40d7b07bdabe68529df51fd2519
When confirming a host key using the fingerprint itself, ignore leading and
trailing whitespace. ok deraadt@ djm@
OpenBSD-Commit-ID: cafd7f803bbdcd40c3a8f8f1a77747e6b6d8c011
expand_proxy_command()
Always put 'host' before 'host_arg' for consistency. ok markus@ djm@
OpenBSD-Commit-ID: 1ba5b25472779f1b1957295fcc6907bb961472a3
some arbitrary value < 0. errno is only updated in this case. Change all
(most?) callers of syscalls to follow this better, and let's see if this
strictness helps us in the future.
OpenBSD-Commit-ID: 48081f00db7518e3b712a49dca06efc2a5428075
speculation and memory sidechannel attacks like Spectre, Meltdown, Rowhammer
and Rambleed. This change encrypts private keys when they are not in use with
a symmetic key that is derived from a relatively large "prekey" consisting of
random data (currently 16KB).
Attackers must recover the entire prekey with high accuracy before
they can attempt to decrypt the shielded private key, but the current
generation of attacks have bit error rates that, when applied
cumulatively to the entire prekey, make this unlikely.
Implementation-wise, keys are encrypted "shielded" when loaded and then
automatically and transparently unshielded when used for signatures or
when being saved/serialised.
Hopefully we can remove this in a few years time when computer
architecture has become less unsafe.
been in snaps for a bit already; thanks deraadt@
ok dtucker@ deraadt@
OpenBSD-Commit-ID: 19767213c312e46f94b303a512ef8e9218a39bd4
when accepting an unknown host key. This allows you to paste a fingerprint
obtained out of band into the yes/no prompt and have the client do the
comparison for you. ok markus@ djm@
OpenBSD-Commit-ID: 3c47d10b9f43d3d345e044fd9ec09709583a2767
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
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
/dev/null. Fixes mosh in proxycommand mode that was broken by the previous
ProxyCommand change that was reported by matthieu@. ok djm@ danj@
OpenBSD-Commit-ID: c6fc9641bc250221a0a81c6beb2e72d603f8add6
- Removed #ifdef WINDOWS blocks in base code where the feature support can be conveyed by a failed POSIX API call
- Refactored password authentication code
- Other misc changes - Removed DebugBreak on Release Builds
- Updated code to dynamic load Lsa functions until RS5 SDK includes them
- Add conpty support in openssh
- Fixed Wierd characters (?25l) are seen, when logged in from ssh client
- Backspace doesn't work in powershell window
- Changes to support ssh-shellhost as an alternative shell
- Added support to have ssh-shellhost work as a standby shell (ssh-shellhost -c "cmdline") simply executes cmdline via CreateProcess
- Added E2E test cases and fixed unittests broken from prior changes
- Added PTY launch interface that supports both conpty and ssh-shellhost pty.
- Implemented PTY control channel in ssh-shellhost that supports Window resize events.
- Fixed regression with starting a PTY session with an explicit command
- modified ssh-shellhost pty argument to ---pty to remove ambiguity in cases when both -p and -c are present in commandline. Ex. ssh-shellhost.exe -c "myprogram -p -c argument"
it to specify which signature algorithms may be used by CAs when signing
certificates. Useful if you want to ban RSA/SHA1; ok markus@
OpenBSD-Commit-ID: 9159e5e9f67504829bf53ff222057307a6e3230f
original_real_uid and original_effective_uid globals and replace with calls
to plain getuid(). ok djm@
OpenBSD-Commit-ID: 92561c0cd418d34e6841e20ba09160583e27b68c
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
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
BindInterface required getifaddr and friends so disable if not available
(eg Solaris 10). We should be able to add support for some systems with
a bit more work but this gets the building again.
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
ssh_free checks for and handles NULL args, remove NULL
checks from remaining callers. ok djm@
OpenBSD-Commit-ID: bb926825c53724c069df68a93a2597f9192f7e7b
Drop compatibility hacks for some ancient SSH
implementations, including ssh.com <=2.* and OpenSSH <= 3.*.
These versions were all released in or before 2001 and predate the
final SSH RFCs. The hacks in question aren't necessary for RFC-
compliant SSH implementations.
ok markus@
OpenBSD-Commit-ID: 4be81c67db57647f907f4e881fb9341448606138
