Difference between revisions of "SPG:Drafts:Virtualisation Policy"

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= Virtual Machines Endorsement Policy =
 
  
As a result of the January 2011 SPG meeting, there is an item to work on a generalisation of the HEPiX Virtual Machines Endorsement Policy document.
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[[Category:Security Policy_Group (SPG)]]
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= Security Policy for the Endorsement and Operation of Virtual Machine Images  =
 +
 
 +
This draft policy is currently under external review. The text being reviewed may be seen at https://documents.egi.eu/public/ShowDocument?docid=771
 +
 
 +
As a result of the January 2011 SPG meeting, there was an item to work on a generalisation of the HEPiX Virtual Machines Endorsement Policy document.
  
 
The original HEPiX policy is available at https://edms.cern.ch/document/1080777
 
The original HEPiX policy is available at https://edms.cern.ch/document/1080777
  
= New draft text =
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=== Introduction ===
 +
 
 +
This document describes the security-related policy requirements for the generation, distribution and operations of virtual machine (VM) images, as part of a trusted computing environment of the IT infrastructure.
  
= Issues and discussion =
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The aim is to enable VM images to be generated according to best practices and to be both trusted and operated elsewhere.
  
= Old (HEPiX) policy text =
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This policy does not compel resource centres to instantiate images endorsed in accordance with this policy. Should a resource centre decide to instanciate a VM image generated by any other non-compliant procedures, that resource centre is still bound by all applicable security policies and is required to consider the security implications of such an action on other participants.
  
== Policy on the Endorsement of Virtual Machine Images ==
 
=== Introduction ===
 
This document describes the security-related policy requirements for the generation and endorsement of
 
trusted virtual machine (VM) images for use on the Grid.
 
The aim is to enable Grid Sites to trust and instantiate endorsed VM images that have been generated
 
elsewhere.
 
The virtualisation model addressed here is the use of virtual Grid worker nodes that act in a similar way
 
to real worker nodes. Virtualisation provides an efficient way of managing different configurations of
 
worker node, e.g. the operating system used, and importantly different pre-configured application
 
environments for the VOs. The model addressed here, therefore, simply provides a different way of
 
running authorized VO work, transparent to the end user, exactly the same as if the user payload was
 
running on a real worker node. There should be no need to place more restrictions on virtual worker
 
nodes running endorsed images as defined by this policy, than on real worker nodes in terms of access to
 
trusted local services at the site.
 
This policy does not compel Sites to instantiate images endorsed in accordance with this policy nor limit
 
the rights of a Site to decide to instantiate a VM image generated by any other non-compliant procedures,
 
should they so desire. The Site is still bound by all applicable Grid security policies and is required to
 
consider the security implications of such an action on other Grid participants.
 
 
=== Definitions ===
 
=== Definitions ===
The following terms are defined.
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• VM base image: A VM image, including a complete operating system and all general
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The following terms are defined.  
middleware, libraries, compilers, programmes and utilities. All kernel and root-level
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* '''Endorser''': A role, held either by an individual or a team, who is responsible for confirming that a particular VM image has been produced according to the requirements of this policy and states that the image can be trusted. An Endorser should be one of a limited number of authorised and trusted individuals appointed either by the infrastructure, a VO or a resource centre. The appointing body must assume responsibility for the actions of the Endorser and must ensure that he/she is aware of the requirements of this policy.
configurations, including any that may be VO-specific, are included here.
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* '''VM operator''': A role, held either by an individual or a team, who is responsible for the security of the VM during its operation phase, from the time it is instantiated, until it is terminated. Typically this addresses individuals with root access on the VM.
• VO environment: The VO-specific middleware, application software, libraries, utilities, data
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* '''Third party''': An external entity other than the resource centre where the VM is operated.
and configuration which may be necessary to provide the appropriate environment for use by
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members of a VO. No kernel modifications or root-level configurations are included here.
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=== Use case classification ===
• VM complete image: The VM image resulting from the combination of the VM base image and
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the VO environment (if any).
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The current policy document addresses the following use cases.
• Globally Unique Identifier: A unique identifier for a VM complete image.
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• Endorser: An individual who confirms that a particular VM complete image has been produced
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==== Endorser: resource centre, VM operator: resource centre ====
according to the requirements of this policy and states that the image can be trusted.
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=== Policy Requirements ===
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In this class virtualisation is not directly accessible by users. It includes, for example, the use of virtual worker nodes that act in a similar way to real worker nodes.
An Endorser should be one of a limited number of authorised and trusted individuals appointed either by
+
 
a VO or a Site. The appointing VO or Site must assume responsibility for the actions of the Endorser and
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The resource centre is both the Endorser and the VM operator and is responsible to ensure the compliance of the VM with existing security policies.
must ensure that he/she is aware of the requirements of this policy.
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CERN-EDMS-1080777 version 1.4b Page 4 of 5
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==== Endorser: Third party, VM operator: resource centre ====
==== Policy Requirements on the Endorser ====
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 +
In this class, the resource centre is the VM operator, and the trust relationship is established between the resource centre and the Endorser.
 +
 
 +
==== Endorser: Third party, VM operator: Third Party ====
 +
 
 +
In this class, the resource centre runs the VM but is not the VM operator, and the trust relationship is established between:
 +
* the resource centre and the VM operator
 +
* the VM operator and the Endorser (both roles can be combined)
 +
 
 +
The resource centre is responsible to ensure sufficient traceability in order to enable malicious network activity to be linked with any VM and its VM operator, as defined in the Security Traceability and Logging policy.
 +
 
 +
The resource centre has no direct trust relationship with the Endorser and may decide to apply specific restrictions to control the access of the VM to other resources, including network services.
 +
 
 +
=== Policy Requirements on the VM Operator ===
 +
 
 +
By acting as a VM Operator you agree to the conditions laid down in this document and other referenced documents, which may be revised from time to time.
 +
 
 +
# You are responsible to fulfil all the operational security and incident response requirements expressed in other policies
 +
# You are responsible to ensure that any VM being run is currently endorsed and to ensure its compliance with existing security policies, including but not limited to security patching, vulnerability management, incident response, logging and traceability.
 +
# You are responsible for handling all problems related to the execution of any licensed software in a VM image. You shall ensure that any software run in a VM, complies with applicable license conditions and you shall hold the resource centre running the image free and harmless from any liability with respect thereto.
 +
# You are responsible for contextualising any endorsed image, including credentials and certificates.
 +
 
 +
=== Policy Requirements on the Endorser ===
 +
 
 
By acting as an Endorser you agree to the conditions laid down in this document and other referenced
 
By acting as an Endorser you agree to the conditions laid down in this document and other referenced
 
documents, which may be revised from time to time.
 
documents, which may be revised from time to time.
1. You are held responsible by the Grid and by the Sites for checking and confirming that a VM
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# You are held responsible by the infrastructure and by the resource centres for checking and confirming that a VM image has been produced according to the requirements of this policy and that there is no known reason, security-related or otherwise, why it should not be trusted.
complete image has been produced according to the requirements of this policy and that there is
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# You recognise that the VM must be generated according to current best practice, the details of which may be documented elsewhere by the infrastructure. These include but are not limited to:
no known reason, security-related or otherwise, why it should not be trusted.
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## any image generation tool used must be fully patched and up to date;
2. You recognise that VM base images, VO environments and VM complete images, must be
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## all operating system and other installed software security patches must be applied to all images and be up to date;
generated according to current best practice, the details of which may be documented elsewhere
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## images are assumed to be world-readable and as such must not contain any confidential information;
by the Grid. These include but are not limited to:
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## there should be no installed accounts, host/service private keys, ssh private keys or user credentials of any form in an image;
any image generation tool used must be fully patched and up to date;
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## images must be configured such that they do not prevent resource centres from meeting the finegrained monitoring and control requirements defined in the Security Traceability and Logging policy to allow for security incident response;
all operating system security patches must be applied to all images and be up to date;
+
## the image must not prevent resource centres from implementing local authorisation and/or policy decisions, e.g. blocking the running of work for a particular user.
images are assumed to be world-readable and as such must not contain any confidential
+
# You must disclose to the infrastructure or to any resource centre on request the procedures and practices you use for checking and endorsing images.
information;
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# You must provide and maintain an up to date list of your currently endorsed images together with the metadata relating to each VM image. The related guidelines will be made available by the infrastucture organisation.
there should be no installed accounts, host/service certificates, ssh keys or user
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# Either the list or each individual image's metadata must be digitally signed by the endorser.
credentials of any form in an image;
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# You must keep an auditable history of every image endorsed including the date/time of generation and full list, including exact versions, of installed software and operating system contained in the VM. This must be made available to resource centres on demand.
images must be configured such that they do not prevent Sites from meeting the finegrained
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# You must implement a removal or revocation procedure to allow the VM operators to exclude those images which are no longer endorsed. This procedure must be implemented whenever a problem is found, e.g. a new security update is required. This removal must also be recorded locally in your auditable history.
monitoring and control requirements defined in the Grid Security Traceability
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# You are responsible for handling all issues related to the distribution of any licensed software in a VM image. You shall ensure that any software distributed in a VM image, complies with applicable license conditions and you shall hold the resource centre running the image free and harmless from any liability with respect thereto.
and Logging policy to allow for security incident response;
+
# You must assist the infrastructure in security incident response and must have a security vulnerability patching process in place.
the image must not prevent Sites from implementing local authorisation and/or policy
+
# You recognise that the infrastructure, the resource centres, and/or the VOs reserve the right to block any endorsed image or terminate any instance of a virtual machine and associated user workload for administrative, operational or security reasons.
decisions, e.g. blocking the running of Grid work for a particular user.
+
# You recognise that if a VM operator runs an image which is no longer endorsed, you are not responsible for any consequences of this beyond the time of your removal of the endorsement.
3. You must disclose to the Grid or to any Site on request the procedures and practices you use for
 
checking and endorsing images.
 
4. You must provide and maintain an up to date digitally signed list of your currently endorsed
 
images together with the metadata relating to each VM image, as defined in the VM Image
 
Catalogue document.
 
5. You must keep an auditable history of every image endorsed including the Globally Unique
 
Identifier, date/time of generation and full list of OS/packages/versions in both the VM Base
 
Image and VO Environment. This must be made available to sites on demand.
 
6. You must remove images from the approved list whenever a problem is found, e.g. a new
 
security update is required. This removal must also be recorded locally in your auditable history.
 
7. You are responsible for handling all problems related to the inclusion of any licensed software in
 
a VM image. You shall ensure that any software included in a VM image which is used for its
 
intended purposes, complies with applicable license conditions and you shall hold the Site
 
running the image free and harmless from any liability with respect thereto.
 
8. You must assist the Grid in security incident response and must have a security vulnerability
 
assessment process in place.
 
CERN-EDMS-1080777 version 1.4b Page 5 of 5
 
9. You recognise that the Grid, the Sites, and/or the VOs reserve the right to block any endorsed
 
image or terminate any instance of a virtual machine and associated user workload for
 
administrative, operational or security reasons.
 
10. You recognise that if a Site runs an image which no longer appears on your list of endorsed
 
images, that you are not responsible for any consequences of this beyond the time of your
 
removal of the image from the list
 

Latest revision as of 17:08, 19 December 2012

Security Policy for the Endorsement and Operation of Virtual Machine Images

This draft policy is currently under external review. The text being reviewed may be seen at https://documents.egi.eu/public/ShowDocument?docid=771

As a result of the January 2011 SPG meeting, there was an item to work on a generalisation of the HEPiX Virtual Machines Endorsement Policy document.

The original HEPiX policy is available at https://edms.cern.ch/document/1080777

Introduction

This document describes the security-related policy requirements for the generation, distribution and operations of virtual machine (VM) images, as part of a trusted computing environment of the IT infrastructure.

The aim is to enable VM images to be generated according to best practices and to be both trusted and operated elsewhere.

This policy does not compel resource centres to instantiate images endorsed in accordance with this policy. Should a resource centre decide to instanciate a VM image generated by any other non-compliant procedures, that resource centre is still bound by all applicable security policies and is required to consider the security implications of such an action on other participants.

Definitions

The following terms are defined.

  • Endorser: A role, held either by an individual or a team, who is responsible for confirming that a particular VM image has been produced according to the requirements of this policy and states that the image can be trusted. An Endorser should be one of a limited number of authorised and trusted individuals appointed either by the infrastructure, a VO or a resource centre. The appointing body must assume responsibility for the actions of the Endorser and must ensure that he/she is aware of the requirements of this policy.
  • VM operator: A role, held either by an individual or a team, who is responsible for the security of the VM during its operation phase, from the time it is instantiated, until it is terminated. Typically this addresses individuals with root access on the VM.
  • Third party: An external entity other than the resource centre where the VM is operated.

Use case classification

The current policy document addresses the following use cases.

Endorser: resource centre, VM operator: resource centre

In this class virtualisation is not directly accessible by users. It includes, for example, the use of virtual worker nodes that act in a similar way to real worker nodes.

The resource centre is both the Endorser and the VM operator and is responsible to ensure the compliance of the VM with existing security policies.

Endorser: Third party, VM operator: resource centre

In this class, the resource centre is the VM operator, and the trust relationship is established between the resource centre and the Endorser.

Endorser: Third party, VM operator: Third Party

In this class, the resource centre runs the VM but is not the VM operator, and the trust relationship is established between:

  • the resource centre and the VM operator
  • the VM operator and the Endorser (both roles can be combined)

The resource centre is responsible to ensure sufficient traceability in order to enable malicious network activity to be linked with any VM and its VM operator, as defined in the Security Traceability and Logging policy.

The resource centre has no direct trust relationship with the Endorser and may decide to apply specific restrictions to control the access of the VM to other resources, including network services.

Policy Requirements on the VM Operator

By acting as a VM Operator you agree to the conditions laid down in this document and other referenced documents, which may be revised from time to time.

  1.  You are responsible to fulfil all the operational security and incident response requirements expressed in other policies
  2.  You are responsible to ensure that any VM being run is currently endorsed and to ensure its compliance with existing security policies, including but not limited to security patching, vulnerability management, incident response, logging and traceability.
  3. You are responsible for handling all problems related to the execution of any licensed software in a VM image. You shall ensure that any software run in a VM, complies with applicable license conditions and you shall hold the resource centre running the image free and harmless from any liability with respect thereto.
  4. You are responsible for contextualising any endorsed image, including credentials and certificates.

Policy Requirements on the Endorser

By acting as an Endorser you agree to the conditions laid down in this document and other referenced documents, which may be revised from time to time.

  1. You are held responsible by the infrastructure and by the resource centres for checking and confirming that a VM image has been produced according to the requirements of this policy and that there is no known reason, security-related or otherwise, why it should not be trusted.
  2. You recognise that the VM must be generated according to current best practice, the details of which may be documented elsewhere by the infrastructure. These include but are not limited to:
    1. any image generation tool used must be fully patched and up to date;
    2. all operating system and other installed software security patches must be applied to all images and be up to date;
    3. images are assumed to be world-readable and as such must not contain any confidential information;
    4. there should be no installed accounts, host/service private keys, ssh private keys or user credentials of any form in an image;
    5. images must be configured such that they do not prevent resource centres from meeting the finegrained monitoring and control requirements defined in the Security Traceability and Logging policy to allow for security incident response;
    6. the image must not prevent resource centres from implementing local authorisation and/or policy decisions, e.g. blocking the running of work for a particular user.
  3. You must disclose to the infrastructure or to any resource centre on request the procedures and practices you use for checking and endorsing images.
  4. You must provide and maintain an up to date list of your currently endorsed images together with the metadata relating to each VM image. The related guidelines will be made available by the infrastucture organisation.
  5. Either the list or each individual image's metadata must be digitally signed by the endorser.
  6. You must keep an auditable history of every image endorsed including the date/time of generation and full list, including exact versions, of installed software and operating system contained in the VM. This must be made available to resource centres on demand.
  7. You must implement a removal or revocation procedure to allow the VM operators to exclude those images which are no longer endorsed. This procedure must be implemented whenever a problem is found, e.g. a new security update is required. This removal must also be recorded locally in your auditable history.
  8. You are responsible for handling all issues related to the distribution of any licensed software in a VM image. You shall ensure that any software distributed in a VM image, complies with applicable license conditions and you shall hold the resource centre running the image free and harmless from any liability with respect thereto.
  9. You must assist the infrastructure in security incident response and must have a security vulnerability patching process in place.
  10. You recognise that the infrastructure, the resource centres, and/or the VOs reserve the right to block any endorsed image or terminate any instance of a virtual machine and associated user workload for administrative, operational or security reasons.
  11. You recognise that if a VM operator runs an image which is no longer endorsed, you are not responsible for any consequences of this beyond the time of your removal of the endorsement.