decrypt ldaps traffic

[mr.linus]

hey all,

I would like to decrypt my ldaps traffic that is now showing up as ssl in my traffic logs.

I can not seem to get it to work

- with ssl forward proxy decryption, I break the ldaps connection altogether and my ldap connection just fails.

- with inboud ssl decryption (with the AD-ldaps certificate + private key imported), the palo alto just refuses to decrytp the traffic. in the logs it is just marked as not decrypted (and application = ssl).

anybody has any experience with this?

kind regards

[Phoenix · Accepted solution]

Hello Linus,

If the software version is 5.0 then for decryption rules there is a decryption profile. Check if it is applied, if so look what checks are made in that profile.

Which ever certificate is configured for Forward decryption, is that certificate configured on the hosts to trust the certificate ?

Also if you look for global counters when the traffic is passing "show counter global" you may catch some counters related to this traffic providing a direction.

Thanks

[mr.linus]

stupid....

since this is a lab setup, things change a lot. seems there was a new root ca installed on the PA which was not yet trusted by the client 😞

installing the cert solved the issue.

tanx