The Custodia key export handler is using the default's OpenSSL encryption
scheme for PKCS#12.
This represents an issue when performing a migration from CentOS Stream 8 (C8S)
to CentOS Steam 9 (C9S) where the Custodia client running in the new C9S
replica talks to the Custodia server on C8S source server. The later creates an
encrypted PKCS#12 file that contains the cert and the key using the OpenSSL's
default encryption scheme, which is no longer supported on C9S.
This commit enforces a stronger encryption algorigthm by adding following
arguments to the Custodia server handler:
-keypbe AES-256-CBC -certpbe AES-256-CBC -macalg sha384
The new arguments enforce stronger PBEv2 instead of the insecure PBEv1.
Fixes: https://pagure.io/freeipa/issue/9101
Signed-off-by: Francisco Trivino <ftrivino@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
Implement the import and export handlers for Custodia keys as external
scripts. It's a prerequisite to drop DAC override permission and proper
SELinux rules for ipa-custodia.
Except for DMLDAP, handlers no longer run as root but as handler
specific users with reduced privileges. The Dogtag-related handlers run
as pkiuser, which also help with HSM support.
The export and import handles are designed to be executed by sudo, too.
In the future, ipa-custodia could be executed as an unprivileged process
that runs the minimal helper scripts with higher privileges.
Fixes: https://pagure.io/freeipa/issue/6888
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
