Split-Horizon Assessments and the Oversight Effect

Posted July 7th, 2010 by

Going Off the Deep End

So I was thinking the other day (this is the part where people who know me in person usually go “oh cr*p”), partially spurred by a conversation I had with @csoandy and @secbarbie a couple of months ago.  I’ll get the idea out there: as an industry we need to embrace the concept of split-horizon assessments.

Two Purposes for Assessments

Because this is an insane approach that I’m just feeling out, let me go on a solo riff and explain what I’m talking about.  You see, I have two distinct purposes for getting a security assessment, both of which are in contention with each other:

  • I want to fix my security by asking for money to fix the things that need attention.  When I get an assessment for this purpose, enumeration of my badness/suckness is good.  If I have a set of results that say that everything is great, then there’s no need for me to be given any more resources (time, money, people, gear).  Short-term, I’m fine, but what about my infrastructure-type long-term projects?  The net effect of a highly-scored annual assessment just might kill my program in 2 years as my funding and people are shifted elsewhere, especially in a .
  • I want to keep my job and help my {company|agency|group} stay out of trouble by showing my zero-defects face and by demonstrating my due-diligence in protecting what has been given to me.  While the assessor has helped me short-term by identifying my problems and being a total hardass, if I’m not around in 6 months to adopt the recommendations into my security program, has the assessor actually helped me?

And this is the dilemma for just about every security manager out there.  One of the strategies is to alternate assessment types, but then your management wonder just what the heck it is you’re doing because you’re on top one year, then on the bottom the next.

Split Rock Lighthouse and Horizon photo by puliarf.

Assessor Window-Shopping

Now for the dirty little secret of the testing business:  there are really good testers who are the ninjas of the InfoSec world and there are really bad testers who don’t even validate their unlicensed Nessus scan.  I know, you’re shocked and it’s so blindingly obvious that Bruce Schneier will blog it 3 years from now.  =)

But there’s the part that you didn’t know:  security managers pick their assessor depending on the political mood inside their organization.  This is nowhere near a science, from what I’ve seen it involves a lot of navel-gazing on the part of the security team to see which is the lesser evil: having everybody think you’re incompetent or never getting anything new ever again?

Building a Better Rat Race

In order to accomplish both of the goals that I’ve listed, what I really need is a split-horizon assessment.  In other words, I need 2 reports from one assessment with different views for different audiences.  I know this sounds highly cynical, but it’s something we’ve been doing for some time now but just informally.  Might as well make it formal.

So are you sold on this concept yet?  In true form, I have an idea on how to get to a world of split-horizon assessments.  You can take any catalog of controls and divide it into “gotta have it” and “nice to have” (I almost divide these along the lines of “vulnerability mitigation” and “sustainable security program” or the “CISO” and “OMB and Congress”) buckets.  Then in your compliance assessment standard, require 2 reports for each assessment.  One is reported to the regulating authority and the other stays with the organization.

Indecision Strikes

I don’t know if I’ve solved the problemspace or not, but I’m looking for feedback “from the Peanut Gallery” so leave some comments.



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How to Not Let FISMA Become a Paperwork Exercise

Posted June 7th, 2010 by

OK, since everybody seems to think that FISMA is some evil thing that needs reform, this is the version of events on “Planet Rybolov”:

Goals to surviving FISMA, based on all the criticisms I’ve read:

  • Reduce paperwork requirements. Yes, some is needed.  Most is not.
  • Reduce cost. There is much repetition in what we’re doing now, it borders on fraud, waste, and abuse.
  • Increase technical effectiveness. IE, get from the procedural and managerial tasks and get down into the technical parts of security.

“Uphold our Values-Based Compliance Culture photo by kafka4prez.

So now, how do you keep from letting FISMA cripple you or turn into death-by-compliance:

  • Prioritize. 25% of your controls need to not fail 100% of the time.  These are the ones that you test in-depth and more frequently.  Honestly, how often does your risk assessment policy get updated v/s your patch management?  Believe it or not, this is in SP 800-53R3 if you interpret it in the correct context.  More importantly, do not let your auditors dictate your priorities.
  • Use common controls and shared infrastructure. Explicitly tell your system owners and ISSOs what you are providing as the agency CISO and/or the GSS that they are riding on.  As much as I hate meetings, if you own a General Support System (GSS), infrastructure (LAN/WAN, AD Forest, etc), or common controls (agency-wide policy, budget, Security Operations Center, etc), you have a fiduciary, legal, and moral obligation to get together with your constituency (the people who rely on the security you provide) and explain what it is you provide and allow them to tell you what additional support they need.
  • Share Assessment Results. I’m talking about results from service providers with other agencies and systems.  We’re overtesting on the high-level stuff that doesn’t change and not on the detailed stuff that does change.  This is the nature of security assessments in that you start at the top and work your way down into the details, only most assessments don’t get down into the details because they’re busy reworking the top-level stuff over and over again.  Many years ago as a contractor managing infrastructure that multiple agencies used, it was unbelievably hard to get one agency to allow me to share security documents and assessment results with other agencies.  Shared assessment results mean that you can cut through the repetitious nature of what you’re doing and progressively get deeper into the technical, frequently-changing security aspects.
  • Simplify the Paperwork. Yes, you still need to document what you’re doing, but the days of free-text prose and being graded on grammar and punctuation need to be over.  Do the controls section of System Security Plans as a Requirement Traceability Matrix.  More important than that, you need to go by-control by-component.  If you are hiring contractors and their job is to do copypasta directly from NIST documents and change the pronouns and tenses, you’re doing it wrong.  Don’t stand for that in your security policy or anything else that you do.
  • Automate Wherever Possible. Note that the controls that change frequently and that need to not fail usually fit into this group.  It’s one of those “Things that make Rybolov go ‘Hmmmm'”.  Technology and automation provide both the problem and the solution.  Also see my first point up above.
  • Fire 50% of Your Security Staff. Yes, I’m serious.  Those people you didn’t need anyway, primarily because they’re violating all the points I’ve made so far.  More importantly, 25 clueless people can mess things up faster than 5 clueful people can fix them, and that’s a problem for me.  Note that this does not apply to @csoandy, his headcount is A-OK.

The incredible thing to me is that this stuff is already there.  NIST writes “hooks” into their Special Publications to allow the smart people the room to do all these things.

And now the part where I hop up on my soapbox:  reforming FISMA by new legislation will not make any achievements above and beyond what we have today (with the exception of creating a CISO-esque position for the Exective Branch) because of the nature of audit and compliance.  In a public policy sense, the more items you have in legislation, the more the audit burden increases and the amount of repetition increases, and the amount of nonsense controls (ie, AntiVirus for Linux servers) increases.  Be careful what you ask for, you just might get it.



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NIST Cloud Conference Recap

Posted June 2nd, 2010 by

A couple of weeks ago I went to the NIST Cloud Conference for the afternoon security sessions.  You can go grab the slides off the conference site.  Good stuff all around.

Come to think of it, I haven’t blogged about FedRAMP, maybe it’s time to.

FedRAMP is a way to do security authorization (formerly certification and accreditation, get with the times, man) on a cloud then let tenant projects use that authorization.  Hmmm, sounds like…. a General Support System with common controls and Major Applications that inherit those controls.  This isn’t really anything new, just the “bread and butter” security management concepts scoped to a cloud.  Basically what will happen with FedRAMP is that they have 3 standards: DoD, DHS, and GSA (most stringent first) and cloud providers get authorized against that standard.  Then when a project wants to build on that cloud, they can use that authorization for their own authorization package.

All things considered, FedRAMP is an awesome idea.  Now if we can get the holdout agencies to actually acknowledge their internal common controls, I’ll be happy–the background story being that some number of months ago I was told by my certifier that “we don’t recognize common controls so even though you’re just a simple web application you have to justify every control even if it’s provided to you as infrastructure.”  No, still not bitter at all here, but I digress….

And then there are the pieces that I haven’t seen worked out yet:

  • Mechanism of Sharing: As a service provider, it’s hard enough to keep one agency happy.  Add in 5 of them and it gets nearly impossible.  This hasn’t really been figured out, but in Rybolov’s small, myopic world, a panel of agencies owning an authorization for a cloud provider means that the cloud never gets authorized.  The way this has been “happening in the wild” is that one agency owns the authorization and all the other agencies get the authorization package from that agency.
  • Using FedRAMP is Optional: An agency or project can require their own risk assessment and authorization even though a FedRAMP one is available.  This means that if the agency’s auditors don’t understand the process or the “risk monkeys” (phrase courtesy of My Favorite Govie) decree it, you lose any kind of cost savings and time savings that you would get by participating in FEDRAMP.
  • Cloud Providers Rule the Roost: Let’s face it, as much as the Government wants to pretend that the cloud providers are satisfying the Government’s security requirements, we all know that due to the nature of catalogs of controls and solution engineering, the vendor here has the advantage.  Nothing new, it’s been happening that way with outsourcing, only now it’s immediately evident.  Instead of trying to play ostrich and stick our heads in the sand, why don’t we look at the incentives for the cloud providers and see what makes sense for their role in all this.
  • Inspector General Involvement: I don’t see this happening, and to be honest, this scares the hell out of me.  Let me just invoke Rybolov’s Law: “My solution is only as good as my auditor’s ability to understand it.”  IE, if the IGs and other auditors don’t understand FedRAMP, you don’t really have a viable solution.

The Big Ramp photo by George E. Norkus.  FedRAMP has much opportunity for cool photos.



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“Machines Don’t Cause Risk, People Do!”

Posted May 26th, 2010 by

A few weeks back I read an article on an apparent shift in emphasis in government security… OMB outlines shift on FISMA” take a moment to give it a read. I’ll wait….

That was followed by NASA’s “bold move” to change the way they manage risk

Once again the over-emphasis and outright demagoguery on “compliance,” “FISMA reports,” “paper exercises,” and similar concepts that occupy our security geek thoughts have not given way to enlightenment. (At least “compliancy” wasn’t mentioned…) I was saddened by a return to the “FISMA BAD” school of thought so often espoused by the luminaries at SANS. Now NASA has leapt from the heights… At the risk of bashing Alan Paller yet again, I am often turned off by the approach of “being able to know the status of every machine at every minute, ” – as if machines by themselves cause bad security… It’s way too tactical (incorrect IMHO) and too easy to make that claim.

Hence the title of this rant – Machines don’t cause risk, people do!

The “people” I’m talking about are everyone from your agency director, down to the lowliest sysadmin… The problem? They may not be properly educated or lack the necessary skills for their position – another (excellent) point brought forth in the first article. Most importantly, even the most seasoned security veteran operating without a strategic vision within a comprehensive security program (trained people, budget, organizational will, technology and procedures) based upon the FISMA framework will be doomed to failure. Likewise, having all the “toys” in the world means nothing without a skilled labor force to operate them and analyze their output. (“He who dies with the most toys is still dead.”) Organizations and agency heads that do not develop and support a comprehensive security program that incorporates the NIST Risk Management Framework as well as the other facets listed above will FAIL. This is nothing new or revolutionary, except I don’t think we’ve really *done* FISMA yet. As I and others have said many times, it’s not about the paper, or the cost per page – it’s about the repeatable processes — and knowledgeable people — behind what the paper describes.

I also note the somewhat disingenuous mention of the risk management program at the State Department in the second article… As if that were all State was doing! What needs to be noted here is that State has approached security in the proper way, IMHO — from a Strategic, or Enterprise level. They have not thrown out the figurative baby with the bath water by dumping everything else in their security program in favor of the risk scoring system or some other bright, shiny object. I know first-hand from having worked with many elements in the diplomatic security hierarchy at State – these folks get it. They didn’t get to the current level of goodness in the program by decrying (dare I say whining about?) “paper.” They made the organizational commitment to providing contract vehicles for system owners to use to develop their security plans and document risk in Plans of Action and Milestones (POA&Ms). Then they provided the money to get it done. Is the State program a total “paragon of virtue?” Probably not, but the bottom line is that it’s an effective program.

Mammoth Strategy, Same as Last Year

Mammoth Strategy, Same as Last Year image by HikingArtist.com.

Desiring to know everything about everything may seem to some to be a worthy goal, but may be beyond many organization’s budgets. *Everything* is a point in time snapshot, no matter how many snapshots you take or how frequently you take them. Continuous, repeatable security processes followed by knowledgeable, responsible practitioners are what government needs. But you cannot develop these processes without starting from a larger, enterprise view. Successful organizations follow this–dare I say it–axiom whether discussing security governance, or system administration.

Government agencies need to concentrate on developing agency-wide security strategies that encompass, but do not concentrate on solely, what patch is on what machine, and what firewall has which policy. Likewise, system POA&Ms need to concentrate on higher-level strategic issues that affect agencies — things like changes to identity management schemes that will make working from home more practical and less risky for a larger percentage of the workforce. Or perhaps a dashboard system that provides the status of system authorization for the agency at-a-glance. “Burying your head in a foxhole” —becoming too tactical — is akin to burying it in the sand, or like getting lost in a bunch of trees that look like a forest. When organizations behave this way, everything becomes a threat, therefore they spray their resource firepower on the “threat of the day, or hour.”

An organization shouldn’t worry about patching servers if its perimeter security is non-existent. Developing the larger picture, while letting some bullets strike you, may allow you recognize threats, prioritize them, potentially allowing you to expend minimal resources to solve the largest problem. This approach is the one my organization is following today. It’s a crawl first, then walk, then run approach. It’s enabled management to identify, segregate, and protect critical information and resources while giving decision-makers solid information to make informed, risk-based decisions. We’ll get to the patches, but not until we’ve learned to crawl. Strangely, we don’t spend a lot of time or other organizational resources on “paper drills” — we’re actively performing security tasks, strategic and tactical that follow documented procedures, plans and workflows! Oh yes, there is the issue of scale. Sorry, I think over 250 sites in every country around the world, with over 62 different government customers tops most enterprises, government or otherwise, but then this isn’t about me or my organization’s accomplishments.

In my view, professional security education means providing at least two formal paths for security professionals – the one that SANS instantiates is excellent for administrators – i.e., folks operating on the tactical level. I believe we have these types of security practitioners in numbers. We currently lack sufficient seasoned professionals – inside government – who can approach security strategically, engaging agency management with plans that act both “globally” and “locally.” Folks like these exist in government but they are few. Many live in industry or the contractor space. Not even our intelligence community has a career path for security professionals! Government as a whole lacks a means to build competence in the security discipline. Somehow government agencies need to identify security up-and-comers within government and nurture them. What I’m calling for here is a government-sponsored internal mentorship program – having recognized winners in the security game mentor peers and subordinates.

Until we security practitioners can separate the hype from the facts, and can articulate these facts in terms management can understand and support, we will never get beyond the charlatans, headline grabbers and other “self-licking ice cream cones.” Some might even look upon this new, “bold initiative” by NASA as quitting at a game that’s seen by them as “too hard.” I doubt seriously that they tried to approach the problem using a non-academic, non-research approach. It needed to be said. Perhaps if the organization taking the “bold steps” were one that had succeeded at implementing the NIST guidance, there might be more followers, in greater numbers.

Perhaps it’s too hard because folks are merely staring at their organization’s navel and not looking at the larger picture?

Lastly, security needs to be approached strategically as well as tactically. As Sun Tzu said, “Tactics without strategy is the noise before defeat.”



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A Funny Thing Happened Last Week on Capital Hill

Posted April 1st, 2010 by

Well, several funny things happened, they happen every week.  But specifically I’m talking about the hearing in the House Committee on Homeland Security on FISMA reform–Federal Information Security: Current Challenges and Future Policy Considerations.  If you’re in information security and Government, you need to go read through the prepared statements and even watch the hearing.

Also referenced is HR.4900 which was introduced by Representative Watson as a modification to FISMA.  I also recommend that you have a look at it.

Now for my comments and rebuttals to the testimony:

  • On the cost per sheet of FISMA compliance paper: If you buy into the State Department’s cost of $1700 per sheet, you’re absolutely daft.  The cost of a security program divided by the total number of sheets of paper is probably right.  In fact, if you do the security bits right, your cost per sheet will go up considerably because you’re doing much more security work while the volume of paperwork is reduced.
  • Allocating budget for red teams: Do we really need penetration testing to prove that we have problems?  In Mike Smith’s world, we’re just not there yet, and proving that we’re not there is just an excuse to throw the InfoSec practitioners under the bus when they’re not the people who created the situation in the first place.
  • Gus Guissanie: This guy is awesome and knows his stuff.  No, really, the guy is sharp.
  • State Department Scanning: Hey, it almost seems like NIST has this in 800-53.  Oh wait, they do, only it’s given the same precedence as everything else.  More on this later.
  • Technical Continuous Monitoring Tools: Does anybody else think that using products of FISMA (SCAP, CVE, CVSS) as evidence that FISMA is failing is a bit like dividing by zero?  We really have to be careful of this or we’ll destroy the universe.
  • Number of Detected Attacks and Incidents as a Metric: Um, this always gets a “WTF?” from me.  Is the number increasing because we’re monitoring better or is it because we’re counting a whole bunch of small events as an attack (ie, IDS flagged on something), or is it because the amount of attacks are really increasing?  I asked this almost 2 years ago and nobody has answered it yet.
  • The Limitations of GAO: GAO are just auditors.  Really, they depend on the agencies to not misrepresent facts and to give them an understanding of how their environment works.  Auditing and independent assessment is not the answer here because it’s not a fraud problem, it’s a resources and workforce development problem.
  • OMB Metrics: I hardly ever talk bad about OMB, but their metrics suck.  Can you guys give me a call and I’ll give you some pointers?  Or rather, check out what I’ve already said about federated patch and vulnerability management then give me a call.

So now for Rybolov’s plan to fix FISMA:

  1. You have to start with workforce management. This has been addressed numerous times and has a couple of different manifestations: DoDI 8570.10, contract clauses for levels of experience, role-based training, etc.  Until you have an adequate supply of clueful people to match the demand, you will continue to get subpar performance.
  2. More testing will not help, it’s about execution. In the current culture, we believe that the more testing we do, the more likely the people being tested will be able to execute.  This is highly wrong and I’ve commented on it before.  I think that if it was really a fact of people being lazy or fraudulent then we would have fixed it by now.  My theory is that the problem is that we have too many wonks who know the law but not the tech and not enough techs that know the law.  In order to do the job, you need both.  This is also where I deviate from the SANS/20 Critical Security Controls approach and the IGs that love it.
  3. Fix Plans of Actions and Milestones. These are supposed to be long-term/strategic problems, not the short-term/tactical application of patches–the tactical stuff should be automated.  The reasoning is that you use these plans for budget requests for the following years.
  4. Fix the budget train. Right now the people with the budget (programs) are not the people running the IT and the security of it (CIO/CISO).  I don’t know if the answer here is a larger dedicated budget for CISO’s staff or a larger “CISO Tax” on all program budgets.  I could really policy-geek out on you here, just take my word for it that the people with the money are not the people protecting information and until you account for that, you will always have a problem.

Sights Around Capital Hill: Twice Sold Tales photo by brewbooks. Somehow seems fitting, I’ll let you figure out if there’s a connection. =)



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Observations on SP 800-37R1

Posted March 29th, 2010 by

So by now NIST SP 800-37 R1 has made the rounds.  I want to take a couple of minutes to go over my theory on this update.

Summary of changes:

  • Certification is gone.  Accreditation has now changed to “Authorization”.  This is interesting to me because it removes certification which I’ve always equated with compliance.
  • There is more focus on continuous monitoring.
  • NIST has made it more obvious that the process in 800-37 is the security aspects of a SDLC.
  • There is much more more emphasis on enterprise-level controls.

So those of you out there who have been succeeding with the NIST Risk Management Framework  have been doing this all along, and it’s actually why you’ve succeeded.  For the rest of you, if you have to change your existing process, you’ve been doing it wrong.

Now for what’s missing and where you need to fill in the gaps:

  • Prioritization of controls.  If everything is important, nothing is important.  You have to be able to determine which controls you need to succeed 100% of the time and which controls only need 75% reliability.  Hey, I even give credit to the SANS 20 Critical Security Controls, as flawed as they are, for this.
  • Delineation of controls into shared/common, hybrid, and system-specific.  This is by design, it’s up to the departments and agencies to figure this out.  If you do this correctly, you save a ton of time and effort.  I remember the day my certifier told me that we didn’t recognize shared controls and that it was on me to provide evidence of controls that were provided at the enterprise–it still baffles me how you really expect one person on a project team to have the resources of the entire IT security staff.
  • Continuous monitoring is up to you.  Along with prioritization, you have to determine which controls you need to monitor and a plan on how to do that.  Protip: these are usually technical controls that you can automate and should do so because it’s the only way to get the job done.
  • Tailor, tailor, tailor.  It is not enough to use generic 800-53 controls.  It definitely is sub-par to use untailored 800-53A test procedures as your test plan.  These all depend on the implementation and need to be tailored to fit.

And finally, a shout-out to Dan Philpott at FISMAPedia.org.  Dan literally consumes new legislation, regulation, guidelines, and standards as they come out and annotates them with a wealth of analysis.

Wordle of NIST SP 800-37R1

800-37 WordCloud by ME! Thanks to wordle.net for the tool to make it.



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