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Description of problem:
REX SSH Key works for SSH but fails for REX on RHEL 8.5 Host


Version-Release number of selected component (if applicable):
6.9.7

How reproducible:
For customer 100% of time, Unable to replicate in lab.


Steps to Reproduce:
1. Set RHEL 8.5 Server to DEFAULT crypto policy
2. Test SSH to Server using the REX Key ssh -vvv -i ~foreman-proxy/.ssh/id_rsa_foreman_proxy host.example.com
3. Test REX Job to same server host.example.com

Actual results:
SSH works fine from server

REX Job Fails with error - Error initializing command: Net::SSH::AuthenticationFailed - Authentication failed for user root.com

Error in Logs for RHEL 8.5 Server:
userauth_pubkey: key type ssh-rsa not in PubkeyAcceptedKeyTypes [preauth]

The error only appears when using REX Jobs, SSH Key works with direct SSH using REX Key.


Expected results:
SSH & REX Should both work

Additional info:
See Private Comments

Verified on Satellite 6.11 sn 16, remote execution performs successfully on a rhel8.5 host

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: Satellite 6.11 Release), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2022:5498