Описание
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.
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.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2018-10896
- https://access.redhat.com/errata/RHSA-2020:3050
- https://access.redhat.com/errata/RHSA-2020:3644
- https://access.redhat.com/errata/RHSA-2020:3898
- https://access.redhat.com/security/cve/CVE-2018-10896
- https://bugs.launchpad.net/cloud-init/+bug/1781094
- https://bugzilla.redhat.com/show_bug.cgi?id=1574338
- https://bugzilla.redhat.com/show_bug.cgi?id=1598831
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896
Связанные уязвимости
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.
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.
ALT-PU-2018-2836: package `cloud-init` update to version 18.4-alt1
ELSA-2020-3898: cloud-init security, bug fix, and enhancement update (MODERATE)