Issue #3360 has been updated by Markus Roberts. Status changed from Accepted to Needs design decision Assigned to changed from Markus Roberts to Luke Kanies
This was by design and IIRC was discussed on the list at the time. The base assumption here, that you can have any sort of security at all with autosigning, is simply false. To the best of my knowledge we have never asserted otherwise, and explicitly point out that (from the FAQ): > It is very tempting to enable autosign for all nodes, as it cuts down on the > manual steps required to bootstrap a new node...This however can be very > dangerous as it can enable a node to masquerade as another node, and get the > configuration intended for that node. -- Markus ---------------------------------------- Bug #3360: puppetca silently overwrites existing certificates http://projects.reductivelabs.com/issues/3360 Author: Claus Divossen Status: Needs design decision Priority: Immediate Assigned to: Luke Kanies Category: SSL Target version: 0.25.5 Affected version: 0.25.4 Keywords: puppetca autosigning signed certificate Branch: The puppetca accepts CSRs for CNs/nodenames that already have a signed certificate, and signing the new certificates will overwrite the old certs without warning or further validation. This seems to be introduced with the work on Bug #2890. The puppetca does not care about already exisiting signed certificates anymore. This is especially dangerous in combination with autosigning: When autosigning is active, any client can pretend to be another node as long as the desired node name matches the autosigning pattern(s). In consequence, autosigning completely disables the authorization process for matching node names. If there are node specific secrets distributed with puppet, an attacker can simply pretend to be another node with the "puppetd --fqdn" option and he will get the other node's secrets without any questions asked. The default behaviour should be to reject new CSRs for a node that already has a signed cert, especially with autosigning. When puppetca is run manually, a warning might be sufficient. -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://reductivelabs.com/redmine/my/account -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/puppet-bugs?hl=en.
