CVE-2018-10896

Description

The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks.

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896

https://bugzilla.redhat.com/show_bug.cgi?id=1574338

https://bugs.launchpad.net/cloud-init/+bug/1781094

Details

Risk Information

CVSS v2

CVSS v3