ETSI GS NFV-SEC 014 V3.1.1 (2018-04)

Network Functions Virtualisation (NFV) Release 3; NFV Security; Security Specification for MANO Components and Reference points

DGS/NFV-SEC014

General Information

• Status: Published
• Publication Date: 19-Apr-2018
• Technical Committee: NFV SEC - Security
• Current Stage: 12 - Completion
• Due Date: 01-May-2018
• Completion Date: 20-Apr-2018

Standards Content (Sample)

ETSI GS NFV-SEC 014 V3.1.1 (2018-04)






GROUP SPECIFICATION
Network Functions Virtualisation (NFV) Release 3;
NFV Security;
Security Specification for MANO Components and
Reference points
Disclaimer
The present document has been produced and approved by the Network Functions Virtualisation (NFV) ETSI Industry
Specification Group (ISG) and represents the views of those members who participated in this ISG.
It does not necessarily represent the views of the entire ETSI membership.

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2 ETSI GS NFV-SEC 014 V3.1.1 (2018-04)



Reference
DGS/NFV-SEC014
Keywords
interface, MANO, NFV, security

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3 ETSI GS NFV-SEC 014 V3.1.1 (2018-04)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 6
4 NFV-MANO Functional Blocks and Reference points . 6
4.0 Overview . 6
4.1 NFV Orchestrator . 7
4.2 VNF Manager(s) . 8
4.3 Virtualised Infrastructure Manager(s) . 8
4.4 NFV Or-Vi reference point . 8
4.5 NFV Vi-Vnfm reference point . 8
4.6 NFV Or-Vnfm reference point . 8
5 Security Threats and Requirements . 8
5.1 Analysis of components and reference points . 8
5.1.1 Fixed asset risks . 8
5.1.2 Data transfer risks . 9
5.2 Risk analysis and requirements . 9
6 Summary of Security Requirements . 10
Annex A (informative): Authors & contributors . 12
Annex B (informative): Bibliography . 13
Annex C (informative): Change History . 14
History . 15


ETSI

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4 ETSI GS NFV-SEC 014 V3.1.1 (2018-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Group Specification (GS) has been produced by ETSI Industry Specification Group (ISG) Network Functions
Virtualisation (NFV).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI

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1 Scope
The present document provides the results of a simplified threat analysis for NFV-MANO functional blocks (NFVO,
VNFM, VIM) and reference points Or-Vnfm, Vi-Vnfm, Or-Vi based on the guidance given in ETSI
GS NFV-SEC 006 [5].
The present document is structured such that clause 4 identifies the scope of the analysis, in the form of a target of
evaluation, whilst the results of the threat analysis in the form of identified requirements that when implemented will
counter or mitigate the threats are given in clause 5 of the present document. A summary is provided in clause 6 of the
impact when the requirements are implemented. Threat analysis is a continual process and should be reviewed
regularly.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI GS NFV-IFA 005: "Network Functions Virtualisation (NFV); Management and
Orchestration; Or-Vi reference point - Interface and Information Model Specification".
[2] ETSI GS NFV-IFA 006: "Network Functions Virtualisation (NFV); Management and
Orchestration; Vi-Vnfm reference point - Interface and Information Model Specification".
[3] ETSI GS NFV-IFA 007: "Network Functions Virtualisation (NFV); Management and
Orchestration; Or-Vnfm reference point - Interface and Information Model Specification".
[4] ETSI GS NFV-IFA 010: "Network Functions Virtualisation (NFV); Management and
Orchestration; Functional requirements specification".
[5] ETSI GS NFV-SEC 006: "Network Functions Virtualisation (NFV); Security Guide; Report on
Security Aspects and Regulatory Concerns".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI GS NFV 003: "Network Functions Virtualisation (NFV); Terminology for Main Concepts in
NFV".
[i.2] ISO/IEC 15408-1/2/3 2005: "Information technology -- Security techniques -- Evaluation criteria
for IT security".
ETSI

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6 ETSI GS NFV-SEC 014 V3.1.1 (2018-04)
[i.3] ISO/IEC 27000: "Information technology -- Security techniques -- Information security
management systems -- Overview and vocabulary".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI GS NFV 003 [i.1] apply.
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI GS NFV 003 [i.1] apply.
4 NFV-MANO Functional Blocks and Reference points
4.0 Overview
This clause provides an overview of NFV-MANO functional blocks and its associated reference points as identified in
ETSI GS NFV-IFA 010 [4]. There are three main functional blocks associated with NFV-MANO:
i) NFV Orchestrator (NFVO);
ii) VNF Manager (VNFM); and
iii) Virtualised Infrastructure Manager (VIM).
There are six reference points associated with MANO:
i) Or-Vnfm reference point;
ii) Or-Vi reference point;
iii) Vi-Vnfm reference point;
iv) Os-Ma-nfvo reference point;
v) Ve-Vnfm-em reference point; and
vi) Ve-Vnfm-Vnf reference point.
The Or-Vnfm, Or-Vi and Vi-Vnfm reference points are grouped as NFV-MANO internal reference points whereas the
Os-Ma-nfvo, Ve-Vnfm-em and Ve-Vnfm-vnf reference point are grouped as NFV-MANO external reference points:
i) The Or-Vnfm reference point is between NFVO and VNFM.
ii) The Or-Vi reference point is between NFVO and VNFM.
iii) The Vi-Vnfm reference point is between the VIM and VNFM.
iv) The Os-Ma-nfvo reference point is between OSS/BSS and NFVO.
v) The Ve-Vnfm-em reference point is between EM and VNFM.
vi) The Ve-Vnfm-vnf reference point is between VNF and VNFM.
The present document provides a threat analysis for NFV-MANO functional blocks and internal NFV-MANO reference
points, i.e. the Or-Vnfm, Vi-Vnfm, Or-Vi reference points. Threat analysis for the external NFV-MANO reference
points, i.e. the Os-Ma-nfvo, Ve-Vnfm-em and Ve-Vnfm-Vnf reference points are for further study.
ETSI

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7 ETSI GS NFV-SEC 014 V3.1.1 (2018-04)

Figure 1: Visual interpretation of Target of Evaluation
The external elements (EM, VNF, OSS/BSS) and their associated reference points are not considered in the present
analysis.

Figure 2: Examination of cardinality of relationships between MANO and VNFIs
The cardinality of relations within MANO has an important impact on the security that may be offered. In simple terms
a one-to-one relationship is more straightforward to make secure than a one-to-many or a many-to-many relationship. It
is assumed for the purposes of the present document that there is a one-to-many relationship between the NFVO defined
in ETSI GS NFV-IFA 010 [4] and the VNFM, and similarly a one-to-many relationship between the VNMF and the
VIM. The external relationship from MANO to instances of VNFs is also considered as one-to-many.
4.1 NFV Orchestrator
The NFV Orchestrator (NFVO) is responsible for life cycle management of network services and VNF packages,
validation and authorization of requests, policy management, and managing resources of NFV-PoPs via multiple VIMs
and VNFMs. It also tracks the network services and the use of resources by using different data repositories. For a
detailed description of the NFV orchestrator and its functionalities, refer to clause 5.4.1 in ETSI GS NFV-IFA 010 [4].
ETSI

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8 ETSI GS NFV-SEC 014 V3.1.1 (2018-04)
4.2 VNF Manager(s)
VNF Manager (VNFM) is responsible for the lifecycle management of VNF instances. Each VNF instance has an
associated VNF manager. VNF manager functions are generic in nature and applicable to any type of VNF. The detail
description of VNF managers and its functionalities are discussed in ETSI GS NFV-IFA 010 [4].
4.3 Virtualised Infrastructure Manager(s)
Virtualised Infrastructure Manager (VIM) is responsible for controlling and managing the NFVI resources such as
compute, storage and network resource of one or more NFVI-Point of Presence (PoPs). VIM exposes virtualised
resource management interfaces/APIs to the VNFM and NFVO. The detail description of VIM and its functionalities
are discussed in ETSI GS NFV-IFA 010 [4].
4.4 NFV Or-Vi reference point
...