From puppet labs: Puppet agents with certnames of IP addresses can be impersonated
This affects Puppet 2.6.16 and 2.7.17
If an authenticated host with a certname of an IP address changes IP
addresses, and a second host assumes the first host's former IP
address, the second host will be treated by the puppet master as the
first one, giving the second host access to the first host's catalog.
Note: This will not be fixed in Puppet versions prior to the forthcoming
3.x. Instead, with this announcement IP-based authentication in
Puppet < 3.x is deprecated.
Resolved in Puppet 2.6.17, 2.7.18
This was only addressed in 2.7. It was not really fixed, the change rather introduces deprecation warning:
https://github.com/puppetlabs/puppet/commit/ab9150b
No real fix is planned for this issue in puppet 2.x versions. Hence no update is planned for Red Hat products that include puppet 2.x versions to address this problem.
Comment 6Fedora Update System
2012-07-28 01:20:27 UTC
puppet-2.7.18-1.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.