Focal verification
[INSTALLED PKG VERSION]
chlo@BIG-HAL:~$ apt-cache policy openssh-server
openssh-server:
Installed: 1:8.2p1-4ubuntu0.4
Candidate: 1:8.2p1-4ubuntu0.4
Version table:
*** 1:8.2p1-4ubuntu0.4 400
400 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages
100 /var/lib/dpkg/status
1:8.2p1-4ubuntu0.3 500
500 http://gb.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
1:8.2p1-4ubuntu0.2 500
500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
1:8.2p1-4 500
500 http://gb.archive.ubuntu.com/ubuntu focal/main amd64 Packages
[PROCEDURE]
Create the keys/certs needed
``ssh-keygen -t rsa -b 4096 -f host_ca -C host_ca`` (no passphrase)
``ssh-keygen -f ssh_host_rsa_key -N '' -b 4096 -t rsa``
``ssh-keygen -s host_ca -I localhost -h -n localhost -V +52w
ssh_host_rsa_key.pub``
Copied ssh_host_rsa_key* files over to /etc/ssh and added the following to
/etc/ssh/sshd_config
``HostCertificate /etc/ssh/ssh_host_rsa_key-cert.pub``
Restarted sshd using systemctl and added ``@cert-authority localhost
ssh-rsa abcdefg`` (ssh-rsa abcdefg is the contents of host_ca.pub) to
~/.ssh/known_hosts
Finally, running
ssh -vv chlo@localhost 2>&1 | grep "Server"
debug1: Server host certificate: [email protected]
SHA256:s2gq1xBSdetCarwElgQd0NbjJbiE3iLDxFtJqDhBFF4, serial 0 ID "localhost" CA
ssh-rsa SHA256:v8ZgezKD9Zw/Ns8I0W6mfvxCAo9jv3WznUYAFhfPfCU valid from
2022-01-05T22:46:00 to 2023-01-04T22:47:11
debug2: Server host certificate hostname: localhost
which tells us the certificate was seen and used
** Tags removed: verification-needed-hirsute verification-needed-impish
** Tags added: verification-done-hirsute verification-done-impish
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1952421
Title:
Issue on sshd finds correct private key for a certificate when using
ssh-agent
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1952421/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
