CVE-2018-10896

Published Aug 1, 2018

Last updated 2 years ago

Overview

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.
Source
secalert@redhat.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Primary
Base score
7.1
Impact score
5.2
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Severity
HIGH

CVSS 3.0

Type
Secondary
Base score
4.6
Impact score
2.7
Exploitability score
1.5
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
3.6
Impact score
4.9
Exploitability score
3.9
Vector string
AV:L/AC:L/Au:N/C:P/I:P/A:N

Weaknesses

secalert@redhat.com
CWE-321
nvd@nist.gov
NVD-CWE-noinfo

Social media

Hype score
Not currently trending

Configurations