NLnet Labs Krill supports direct access to the RRDP repository
content through its built-in web server at the "/rrdp" endpoint.
Prior to 0.12.1 a direct query for any existing directory under
"/rrdp/", rather than an RRDP file such as "/rrdp/notification.xml"
as would be expected, causes Krill to crash. If the built-in "/rrdp"
endpoint is exposed directly to the internet, then malicious remote
parties can cause the publication server to crash. The repository
content is not affected by this, but the availability of the server
and repository can cause issues if this attack is persistent and is
not mitigated. .