National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-10896 Detail

Current 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:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.1 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score: 4.6 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
https://bugs.launchpad.net/cloud-init/+bug/1781094 Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1574338 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896 Issue Tracking Patch Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information NIST  
CWE-321 Use of Hard-coded Cryptographic Key Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:canonical:cloud-init:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
0.6.2


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-10896
NVD Published Date:
08/01/2018
NVD Last Modified:
10/09/2019