Issue #2890 has been updated by Luke Kanies.

Status changed from Needs design decision to Accepted
Target version set to Puppet - 0.25.2

Looks like this is a regression - we used to do this correctly, but with the 
new caching system, we cache the cert before we verify that it works for us.

We need to move the validation further up the chain, apparently.
----------------------------------------
Bug #2890: Puppetd: signed certificate retrieval "Retrieved certificate does 
not match private key"
http://projects.reductivelabs.com/issues/2890

Author: Silviu Paragina
Status: Accepted
Priority: Low
Assigned to: Luke Kanies
Category: SSL
Target version: 0.25.2
Affected version: 0.25.1
Keywords: 
Branch: 


Install a new client let's call it client1 

Steps:
1. run puppetd --test on client
2. run puppetca --sign client1 on server
3. run rm -rf /var/lib/puppet/ssl on the client (equivalent with reinstalling 
the os on the client)
4. run puppetd --test on the client
Now you will get as expected the "Retrieved certificate does not match private 
key" error. But the certificate the server gave is stored in 
/var/lib/puppet/ssl/certs and puppetd will try to use it on future runs

To prove that do this 2 final steps
5. run puppetca --clean client1
6. puppetd --test 
if you analyze this run you will notice that the client does not even contact 
the server, it just loads the local certificates and bails out because the 
private/public key pair doesn't match.


Workaround: delete /var/lib/puppet/ssl/cers/client1.pem from the client (or the 
equivalent file)

I think the client shouldn't store the certificate received from the server 
unless it matches. 


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