Hi Nicolas,
Then, in SAP provisioning framework, the password value provisioning is based on attribute MX_ENCRYPTED_PASSWORD, and if the password is disabled or not depends on attribute MX_PASSWORD_DISABLED. Please you can check one MX_PERSON entry's attributes with sql like:
select * from idmv_value_basic_all where mskey=<user's mskey>
So if MX_PASSWORD_DISABLED is set for the user, the password will be disabled.
BR, Keith