Displaying 4 results from an estimated 4 matches for "ssh_msg_unimplemented".
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ssh2_msg_unimplemented
2015 May 26
6
Name based SSH proxy
...nformation is covered by integrity checks and which
is not. I found a method which would work according to the
RFC, but it turns out OpenSSH doesn't behave as specified
by the RFC.
One thing I found was RFC 4253 saying:
An implementation MUST respond to all unrecognized messages with an
SSH_MSG_UNIMPLEMENTED message in the order in which the messages were
received. Such messages MUST be otherwise ignored. Later protocol
versions may define other meanings for these message types.
However what I found OpenSSH to be doing was for every
unrecognized message it would either ignore it and not
send a...
2015 May 25
4
Name based SSH proxy
On 25/05/15 09.51, Damien Miller wrote:
> I'm not sure it should be part of the banner exchange, though there is
> no other trivial way to do it and maintain backwards compatibility.
Even if backwards compatibility wasn't a requirement,
I don't see any better way it could be done.
> I don't much like it because it reveals host identity information
> in the clear.
So
2015 Nov 11
8
[Bug 2494] New: kex_protocol_error should send SSH2_MSG_UNIMPLEMENTED
https://bugzilla.mindrot.org/show_bug.cgi?id=2494
Bug ID: 2494
Summary: kex_protocol_error should send SSH2_MSG_UNIMPLEMENTED
Product: Portable OpenSSH
Version: 6.9p1
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: sshd
Assignee: unassigned-bugs
2016 Jan 26
2
Questions about inferred state machines for OpenSSH
Dear all,
For my thesis, I've been working on automatic inference of state
machines for SSH servers. I ran into a couple of particularities
regarding OpenSSH's inferred state machine, and was hoping some of you
might be interested. Maybe you can even shed some light on it.
Setup: I'm using LearnLib's (Java) version of the L* learning
algorithm [1] to come up with sequences of