NVD

CVE-2018-10896 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 7.1 HIGH

Vector: CVSS:3.1/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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 3.6 LOW

Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:N)

References to Advisories, Solutions, and Tools

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

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Change History

8 change records found show changes

CVE Modified by Red Hat, Inc. 2/12/2023 11:51:37 PM

Action	Type	Old Value	New Value
Changed	Description	The default cloud-init configuration 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.
Added	CWE		Red Hat, Inc. CWE-321
Removed	Reference	https://access.redhat.com/errata/RHSA-2020:3050 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2020:3644 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2020:3898 [No Types Assigned]
Removed	Reference	https://access.redhat.com/security/cve/CVE-2018-10896 [No Types Assigned]
Removed	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=1598831 [No Types Assigned]

CVE Modified by Red Hat, Inc. 2/02/2023 11:18:24 AM

Action	Type	Old Value	New Value
Changed	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.	The default cloud-init configuration 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.
Removed	CWE	Red Hat, Inc. CWE-321
Added	Reference		https://access.redhat.com/errata/RHSA-2020:3050 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2020:3644 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2020:3898 [No Types Assigned]
Added	Reference		https://access.redhat.com/security/cve/CVE-2018-10896 [No Types Assigned]
Added	Reference		https://bugzilla.redhat.com/show_bug.cgi?id=1598831 [No Types Assigned]
Removed	CWE Reason	CWE-321 / Assessment performed prior to CVMAP efforts

Initial Analysis by NIST 11/01/2018 10:09:26 AM

Action	Type	Old Value	New Value
Added	CVSS V3		AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Added	CVSS V2		(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Added	CWE		CWE-284
Added	CPE Configuration		OR cpe:2.3:a:canonical:cloud-init::::::::* versions from (including) 0.6.2
Changed	Reference Type	https://bugs.launchpad.net/cloud-init/+bug/1781094 No Types Assigned	https://bugs.launchpad.net/cloud-init/+bug/1781094 Patch, Third Party Advisory
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1574338 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1574338 Issue Tracking, Third Party Advisory
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896 Issue Tracking, Patch, Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2018-10896
NVD Published Date:
08/01/2018
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2018-10896 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/20/2024 10:42:14 PM

CVE Modified by Red Hat, Inc. 5/14/2024 12:54:52 AM

CVE Modified by Red Hat, Inc. 2/12/2023 11:51:37 PM

CVE Modified by Red Hat, Inc. 2/02/2023 11:18:24 AM

Modified Analysis by NIST 10/29/2020 4:19:36 PM

CVE Modified by Red Hat, Inc. 10/09/2019 7:33:10 PM

CWE Remap by NIST 10/02/2019 8:03:26 PM

Initial Analysis by NIST 11/01/2018 10:09:26 AM

Quick Info