Does pfsense have a old outdated SSHD version, and how to update it?
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This message is truly bizarre to me as pfsense should have sntrup761x25519-sha512 already . . .
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@zcrayfish It happened, after I updated my MacPorts stuff, and I saw also that OpenSSH has been updatet last week, since then, I get this message. But its not worrying me, as I only connect from LAN side via ssh to my pfsense. As stephenw10 said, it will be updatet with the next release. Cheers, by the way, I have also a ubuntu server which i often connect to via ssh, and there, the message doesnt appear ( I keep it always up to date).
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@zcrayfish It appears to, but the script that generates sshd_config at boot does not include either PQ algorithm.
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Mmm, looks like it should be added I agree. Let's see.....
Edit already a feature request open: https://redmine.pfsense.org/issues/16423
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Seems to work fine. Here's a patch if you want to test it: 1252.diff
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@stephenw10 Thank you for your effort! Excuse me my silly question, do I have to execute your mentioned Patch 1252.diff in shell of pfsense? I downloaded it already... but not sure, what to do with it...or if a file needs to be patched... ?
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Install the System Patches package and then add it as a new patch.
https://docs.netgate.com/pfsense/en/latest/development/system-patches.html -
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@stephenw10 The Patch works, I did it like you said, and restarted sshd, now, when I login via ssh, the message:
** WARNING: connection is not using a post-quantum key exchange algorithm.
** This session may be vulnerable to "store now, decrypt later" attacks.
** The server may need to be upgraded. See https://openssh.com/pq.htmlDoesnt appear anymore! Wonderfull, wished I could give a thumbs up..but Im not allowed to...Big Thanks again!
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Nice! Thanks for testing.
