Guessing that it has to do with how you brought it into the keystore? This answer has details on how to import it as a chain into the keystore: https://stackoverflow.com/questions/9299133/why-doesnt-java-send-the-client-certificate-during-ssl-handshake/9300727#9300727

On 11/3/22 14:22, 'Richard Frovarp' via CAS Community wrote:
Browsers will insert the intermediate certificates if they know them. So you can't trust the browser. Scanners look for the chain with no prior knowledge, and thus are more reliable in determining if you have everything setup correctly.

On 11/3/22 12:47, Ray Bon wrote:
Michael,

I have not run the embedded tomcat so I do not know where the logs are or if they are the same in the console on startup. When you are on the cas site, you can click the lock icon beside the url. You can then get access to the certificate(s) and view them. (Steps vary a bit between browsers.) You should see your host cert, the intermediates, and the root CA. If those certs are as you  expect, perhaps the scanning tool can provide more details on what it thinks is amiss.

Ray

On Thu, 2022-11-03 at 10:18 -0700, Michael Santangelo wrote:
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Ray,

So bare with me here, because I've only been doing this for about 6 months, and it's felt very piecemeal (as in I am pretty sure there's a better way to do it but I'm not familiar enough with it to figure it out yet).

Yes, I think we're running the embedded Tomcat as I start our cas with a "sudo ./gradlew clean copyCasConfiguration build run" --- I then watch the screen for output and I don't see any errors regarding any of the stores.

The tomcat.jks certificate is consistently sent by the webserver as evidenced by loading the site and getting proper SSL.  It's just when I run a qualys ssl scan on our instance it says that we're missing the certificate chain, which I thought I specified to include by adding the lines "server.ssl.truststore=file:/path/to/ssl/chain.jks
server.ssl.truststorepassword=thepassword2" to the cas.properties.

I've tried changing it to server.ssl.trust-store and server.ssl.trust-store-password but I don't get errors with that either... Which leads me to believe I'm missing the errors as they happen or something else entirely is wrong.

I don't see any errors during page access either.

On Thursday, November 3, 2022 at 12:59:58 PM UTC-4 Ray Bon wrote:
Michael,

I assume you are running embedded tomcat and the process running tomcat has read access to the .jks.
What certificate is being sent when you browse to cas/login?
Are there any log errors on tomcat startup or page access?

Ray

On Wed, 2022-11-02 at 12:44 -0700, Michael Santangelo wrote:
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Hello all,

I'm struggling with getting CAS to send the certificate chain properly and wondering if maybe I'm using the wrong lines in the config.

Before this project I had:
server.ssl.key-store=file:/path/to/ssl/tomcat.jks
server.ssl.key-store-password=thepassword

After some googling, I added
server.ssl.truststore=file:/path/to/ssl/chain.jks
server.ssl.truststorepassword=thepassword2

However, when I run SSL scans against the site, it still reports that the chain isn't being sent.

Is it different keys? Or should I just bake the chain into the tomcat file?  Are there any aliases I should use specifically?

Thanks.
-M


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