CVE-2018-10896CWE-321

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

Medium · published August 1, 2018

CVSS v3.0
4.6
EPSS
0%
Percentile
27.4
In the wild
Unconfirmed
What it is

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 record
Technical detail
CVSS v3.0
4.6 · MEDIUM
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00351 · 27.4th percentile
Weakness
CWE-321 · Use of Hard-coded Cryptographic Key
Published
2018-08-01T17:00Z
EPSS history
Timeline
  • 01 AUG 17:00Z
    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
    cvelistv5