The Guerilla CISO Rants: Don’t Write a System Security Plan

Posted October 1st, 2009 by

OK, I know you’re shocked…I’m saying something controversial.  But hear me out on this one, I’ll explain.

Now this is my major beef with the way we write SSPs today:  this is all information that is contained in other artifacts that I have to pay people to do cut-and-paste to get it into a SSP template.  As practiced, we seriously have a problem with polyinstantiation of data in various lifecycle artifacts that is cut-and-pasted into an SSP.  Every time you change the upstream document, you create a difference between that document and the SSP.

This is a practice I would like to change, but I can’t do it all by myself.

This is the skeleton outline of an SSP from Special Publication 800-18, the guide to writing an SSP:

  1. Information System Name/Title–On the investment/FISMA inventory, the Exhibit 300/53, etc
  2. Information System Categorization–usually on a FIPS-199 memorandum
  3. Information System Owner–In an assignment memo
  4. Authorizing Official–In an assignment memo
  5. Other Designated Contacts–In an assignment memo
  6. Assignment of Security Responsibility–In assignment memos
  7. Information System Operational Status–On the investment/FISMA inventory, the Exhibit 300/53, etc
  8. Information System Type–On the investment/FISMA inventory, the Exhibit 300/53, etc
  9. General System Description/Purpose–In the design document, Exhibit 300/53
  10. System Environment–Common controls not inside the scope of our system
  11. System Interconnections/Information Sharing–from Interconnection Security Agreements
  12. Related Laws/Regulations/Policies–Should be part of the system categorization but hardly ever is on templates
  13. Minimum Security Controls–800-53 controls descriptions which can easily be done in a Requirements Traceability Matrix
  14. Information System Security Plan Completion Date–specific to each document
  15. Information System Security Plan Approval Date–specific to each document

Now some of this has changed in practice a little bit–# 10 can functionally be replaced with a designation of common controls and hybrid controls.

So my line of thinking is that if we provide a 2-6-page system description with the names of the “guilty parties” and some inventory information, controls-specific Requirements Traceability Matrix, and a System Design Document, then we have the functional equivalent of an SSP.

Why have I declared an InfoSec fatwah against SSPs as currently practiced?

Well, my philosophy for operation is based on some concepts I’ve picked up through the years:

  • Why run when you can walk, why walk when you can sit, why sit when you can lay down.  There is a time to spend effort on determining what the security controls are for a project.  You need to have them documented but it’s not cost-effective to be worried about format, which we do probably too much of today.
  • Make it easy to do the right thing.  If we polyinstantiate security information, we have made something harder to maintain.  Easier to maintain means that it will get maintained instead of being shelfware.  I would rather have updated and accurate security information than overly verbose and well-polished documents that are inaccurate.
  • Security is not a “security guy thing”–most problems are actually a management and project team problem.  My idea uses their SDLC artifacts instead of security-specific versions of artifacts.  My idea puts the project problems back in the project space where it belongs.
  • If I have a security engineer who has a finite amount of hours in a day, I have to choose what they spend their time on.  If it’s a matter of vulnerability mitigation, patching, etc, or correcting SSP grammar, I know what I want him to do.  Then again, I’m still an infantryman deep down inside and I realize I have biases against flowery writing.

Criticisms to not writing a dedicated SSP document:

“My auditors are used to seeing the information in the same format at someplace they worked previously”. Believe it or not, I hear this quite a bit.  My response is along the lines of the fact that if you make your standard be what I’m suggesting for a security plan, then you’ve met all of the FISMA and 800-53 requirements and my personal requirement to “don’t do stupid stuff if you can help it”.

“My auditors will grill me to death if they have to page back and forth between several documents”.  This one also I’ve heard.  There are a couple of ways to deal with this.  One way to deal with this is that in your 800-53 Requirements Traceability Matrix you reference the source document.  Most auditors at this point bring up that you need to reference the official name, date of publication, and specific page/section of the reference and I think they need to get a life because they’ve taken us back to the maintainability problem.

“This is all too new-school and I can’t get over it”. Then you are a dinosaur and your kind deserves extinction.  =)

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This blog post is for grecs at novainfosecportal.com who perked up instantly when I mentioned the concept months ago.  Finally got around to putting the text somewhere.

How to Plan the Perfect Dinner Party photo by kevindooley.



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Web 2.0 and Social Media Threats for Government

Posted September 30th, 2009 by

So most of the security world is familiar with the Web 2.0 and Social Media threats in the private sector.  Today we’re going to have an expose on the threats specific to Government because I don’t feel that they’ve been adequately represented in this whole push for Government 2.0 and transparency.

Threat: Evil Twin Agency Attack. A person registers on a social media site using the name of a Government entity.  They then represent that entity to the public and say whatever it is that they want that agency to say.

What’s the Big Deal: Since for the most part there is no way to prove the authenticity of Government entities on social media sites short of a “catch us on <social media site>” tag on their .gov homepage.  This isn’t an attack unique to Government but because of the authority that people give to Government Internet presences means that the attacker gains perceived legitimacy.

Countermeasures: Monitoring by the agencies looking for their official and unofficial presences on Social Media and Web 2.0 sites.  Any new registrations on social media are vetted for authenticity through the agency’s public affairs office.  Agencies should have an official presence on social media to reserve their namespace and put these account names on their official website.

References:

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Threat: Web Hoax. A non-government person sets up their own social media or website and claims to be the Government.

What’s the Big Deal: This is similar to the evil twin attack only maybe of a different scale.  For example, an entire social media site can be set up pretending to be a Government agency doing social networking and collecting data on citizens or asking citizens to do things on behalf of the Government.  There is also a thin line between parody and

Countermeasures: Monitoring of URLs that claim to be Government-owned.  This is easily done with some Google advanced operators and some RSS fun.

References:

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Threat: Privacy Violations on Forums. A Government-operated social media site collects Personally Identifiable Information about visitors when they register to participate in forums, blog comments, etc.

What’s the Big Deal: If you’re a Government agency and going to be collecting PII, you need to do a Privacy Impact Assessment which is overkill if you’re collecting names and email which could be false anyway.  However, the PIA is a lengthy process and utterly destroys the quickness of web development as we know it.

Countermeasures: It has been proposed in some circles that Government social media sites use third-party ID providers such as OpenID to authenticate simple commenters and forum posts.  This isn’t an original idea, Noel Dickover has been asking around about it for at least 9 months that I know of.

References:

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Threat: Monitoring v/s Law Enforcement v/s Intelligence Collection. The Government has to be careful about monitoring social media sites.  Depending on which agency is doing it, at some point you collect enough information from enough sources that you’re now monitoring US persons.

What’s the Big Deal: If you’re collecting information and doing traffic analysis on people, you’re most likely running up against wiretap laws and/or FISA.

Countermeasures: Government needs Rules of Engagement for creating 2-way dialog with citizens complete with standards for the following practices:

  • RSS feed aggregation for primary and secondary purposes
  • RSS feed republishing
  • Social networking monitoring for evil twin and hoax site attacks
  • Typical “Web 2.0 Marketing” tactics such as group analysis

References:

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Threat: Hacked?  Not Us! The Government does weird stuff with web sites.  My web browser always carps at the government-issued SSL certificates because they use their own certificate authority.

What’s the Big Deal: Even though I know a Government site is legitimate, I still have problems getting alert popups.  Being hacked with a XSS or other attack has much more weight than for other sites because people expect to get weird errors from Government sites and just click through.  Also the sheer volume of traffic on Government websites means that they are a lucrative target if the attacker’s end goal is to infect desktops.

Countermeasures: The standard web server anti-XSS and other web application security stuff works here.  Another happy thing would be to get the Federal CA Certificate embedded in web browsers by default like Thawt and Verisign.

References:

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Threat: Oh Hai I Reset Your Password For You AKA “The Sarah Palin Attack”.  The password reset functions in social media sites work if you’re not a public figure.  Once the details of your life become scrutinized, your pet’s name, mother’s maiden name, etc, all become public knowledge.

What’s the Big Deal: It depends on what kind of data you have in the social media site.  This can range anywhere from the attacker getting access to one social media site that they get lucky with to complete pwnage of your VIP’s online accounts.

Countermeasures: Engagement with the social media site to get special considerations for Government VIPS.  Use of organizational accounts v/s personal accounts on social media sites.  Information poisoning on password reset questions for VIPs–don’t put the real data up there.  =)

References:

Tranparency in Action photo by Jeff Belmonte.



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Federal CIO Council’s Guidelines on Security and Social Media

Posted September 17th, 2009 by

I got an email today from the author who said that it’s now officially on the street: Guidelines for Secure Use of Social Media by Federal Departments and Agencies, v1.0.  I’m listed as a reviewer/contributor, which means that maybe I have some good ideas from time to time or that I know some people who know people.  =)

Abstract: The use of social media for federal services and interactions is growing tremendously, supported by initiatives from the administration, directives from government leaders, and demands from the public. This situation presents both opportunity and risk. Guidelines and recommendations for using social media technologies in a manner that minimizes the risk are analyzed and presented in this document.

This document is intended as guidance for any federal agency that uses social media services to collaborate and communicate among employees, partners, other federal agencies, and the public.



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Special Publication 800-53 Revision 3 Workshop

Posted September 1st, 2009 by

My friends at Potomac Forum are having a workshop on SP 800-53 R3 on the 15th of September.  This is an update to the Government’s catalog of controls.

The workshop will also be about standards convergence: how ODNI, DoD, and NIST are moving towards one standard and what this means for the intelligence community and military.

Ron Ross from NIST will talk about how the NIST Risk Management Framework is changing from a static, controls-based approach to a more dynamic “real-time continuous monitoring”.



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OMB Wants a Direct Report

Posted August 28th, 2009 by

The big news in OMB’s M-09-29 FY 2009 Reporting Instructions for the Federal Information Security Management Act and Agency Privacy Management is that instead of fiddling with document files reporting will now be done directly through an online tool. This has been covered elsewhere and it is the one big change since last year.  However having less paper in the paperwork is not the only change.

Piles of Paper photo by °Florian.

So what will this tool be like? It is hard to tell at this point. Some information will be entered directly but the system appears designed to accept uploads of some documents, such as those supporting M-07-16. Similar to the spreadsheets used for FY 2008 there will be separate questions for the Chief Information Officer, Inspector General and Senior Agency Official for Privacy. Microagencies will still have abbreviated questions to fill out. Additional information on the automated tool, including full instructions and a beta version will be available in August, 2009.

Given the required information has changed very little the automated system is unlikely to significantly ease the reporting burden. This system appears primarily designed to ease the data processing requirements for OMB. With Excel spreadsheets no longer holding data many concerns relating to file versions, data aggregation and analysis are greatly eased.

It is worth noting that a common outcome of systems re-engineered to become more efficient is that managers look to find ways to utilize the new efficiency. What does this mean? Now that OMB has the ability to easily analyze data which took a great amount of effort to process before they may want to improve what is reported. A great deal has been said over the years about the inefficiencies in the current reporting regime. This may be OMB’s opportunity to start collecting an increased amount of information that may better reflect agencies actual security posture. This is pure speculation and other factors may moderate OMB’s next steps, such as the reporting burden on agencies, but it is worth consideration.

One pleasant outcome to the implementation of this new automated tool is the reporting deadline has been pushed back to November 18, 2009.

Agencies are still responsible for submitting document files to satisfy M-07-16. The automated tool does not appear to allow direct input of this information. However the document requirements are slightly different. Breach notification policy document need only be submitted if it has changed. It is no longer sufficient to simply report progress on eliminating SSNs and reducing PII, an implementation plan and a progress update must be submitted. The requirement for a policy document covering rules of behavior and consequences has been removed.

In addition to the automated tool there are other, more subtle changes to OMB’s FY 2009 reporting. Let’s step through them, point by point:

10. It is reiterated that NIST guidance is required. This point has been expanded to state that legacy systems, agencies have one year to come into compliance with NIST documents new material. For new systems agencies are expected to be in compliance upon system deployment.

13 & 15. Wording indicating that disagreements on reports should be resolved prior to submission and that the agency head’s view will be authoritative have been removed. This may have been done to reduce redundancy as M-09-29’s preface indicates agency reports must reflect the agency head’s view.

52. The requirement for an central web page with working links to agency PIAs and Federal Register published SORNs has been removed.

A complete side-by-side comparison of changes between the two documents is available at FISMApedia.org.

All in all the changes to OMB’s guidance this year will not change agencies reporting burden significantly. And that may not be a bad thing.



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Note to the Data People: Give us Some Raw InfoSec Data

Posted August 24th, 2009 by

We have all these data wonks running around now in the information security field thanks to a couple of people (Jaquith, Shostack, Stewart, and our friends at Verizon Business) who brought us some books and some data.

Well, earlier this year, the Government started a website called Data.gov.  This is much awesomeness, Viva Las Transpareny!  However, it’s missing something very relevant to my interests: information security management data.

So, I want people to go to data.gov’s “request a dataset” page and request the following:

Complete responses from the Departments and Agencies to the FISMA reporting requirements for FY2004-2009 based on OMB Memoranda 04-25, 05-15, 06-20, 07-19, 08-21, and 09-29.

Raw incident data for years 2005-2007 as reported to OMB and summarized in their report to Congress on FY2007 FISMA performance and published at http://www.whitehouse.gov/omb/inforeg/reports/2007_fisma_report.pdf

Raw incident data for years 2007 and later in any type and format similar to the Verizon Data Breach Incident Report available at http://www.verizonbusiness.com/resources/security/reports/2009_databreach_rp.pdf

This information is necessary for researchers to study the effectiveness of information security management techniques and regulatory schemes and for industry to propose changes to national-level information security management frameworks and legislation such as FISMA.  This information for the most part has been released in a summary format to Congress and the release of the complete dataset on data.gov would greatly aid the information security community.

It might be a fool’s errand at this point, but it doesn’t hurt to ask, and it only takes a couple of minutes to do.  =)



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