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Acces Control Level

Posted on 2013-01-02
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Last Modified: 2013-01-05
I am looking for a controlled method to develop ACL ( Access Control Level ) for systems, networks, and application server following international recognized organization standards that govern this particular security standard.

Providing meLinks, Templates, Processes, Industry trends would be greatly appreciated by recognized organisations.
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Question by:YRMC_Infrastructure
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by:thpipfh
ID: 38735924
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by:YRMC_Infrastructure
ID: 38736129
Your missing my point. It is not related to firewalls ACL. I am refering to access to system and what level of permission should they have.
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Dave Howe earned 500 total points
ID: 38736419
hehehe the perils of blindly googling :)

@thpipfh: Queriant is interested in Role Based Access Control (RBAC) or similar, which is usually policy driven. an ASA has Access Control Lists, which are something completely different :)

@YRMC_Infrastructure:
  What have you investigated so far? the Oasis RBAC model is currently very popular, and there is an ANSI standard that is fairly similar (both behind paywalls, sadly) but both are overkill for most real world scenarios.

  In most cases, the tools and resources provided by Active Directory (much though I dislike promoting MS products, they ARE commonly deployed) are good enough to provide an implementation framework; obviously, this is semi-transparent for other windows resources but given an enterprise AD server will also provide kerberos, ldap, and radius methods, it makes a convenient single point of administration for your eventual solution (plus of course the tools are easy to use for your helpdesk when assigning users to groups, which is usually all that is required for them to do day-to-day administration of a role based solution).

In most cases, the policy is developed with the following simple procedure:

1) Identify Protected Resources
Before you can define a policy for an object, you need to know which objects or classes of objects you are going to need to control access to
2) Identify who NEEDS access to the resource, who CAN be given access to the resource, and most importantly, who MUST NOT be given access to the resource
3) Define groups in your control solution (most commonly AD) with access to the resource with the permissions required. Block access for all other users. These are your Resource Roles (security groups, in MS terms) - Ensure names are appropriate, and develop a naming convention for this.
4) Define groups for the user roles required; again, develop a naming convention, and in addition, define (procedurally, not technically as usually the helpdesk will execute the changes) who has authorization to add or remove users from these groups.
5) Add User Role groups to Resource Role groups so that membership of a UR group grants access to multiple Resources via RR groups.  Document this so that there is a clear (paper!) representation of which roles have access to what resources.
6) Develop internal forms and procedures by which an authorized manager or personnel officer (never neglect the post-employment cleanup after a user leaves the company) may request from the Helpdesk the task of assigning a user to or unassigning a user from a role. The essential elements are:
  a) name of user to be affected
  b) name of role to be affected
  c) name of officer requesting change
  d) nature of change
  e) date for change to be affective (this may be a date for "done by" or "not before", or both)
  f) date of request.

the above forms your audit trail for when things go wrong (and they will, inevitably) and is essential, not for fixing blame (although sadly that will be part of its usage, or at least preventing blame falling on the helpdesk operators when not due) but for highlighting where procedure has failed and should be modified.  

you might also want to look at a simple change control (software) package for the above too (You can do that yourself in sharepoint, or there are dozens of suitable solutions out there) but we are wandering out of scope here.
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