Software-centric threat modeling techniques

In software and systemcentric modeling techniques, data flow diagrams are usually used to first model the system, data, and boundaries and. Apply threat modeling to improve security when managing complex systems. Microsoft security development lifecycle threat modelling. It also helps threat modelers identify classes of threats they should consider based on the structure of their software design. Unlike software centric approaches, hazop was originally created in the process industry, but has been applied to computer. Assetcentric approaches to threat modeling involve identifying. The game uses a variety of techniques to do so in an enticing, supportive and nonthreatening way. Nov 15, 2016 a familiarity with software centric threat modeling concepts and microsofts stride methodology what youll learn learn techniques for checking that the current feature under development does not make your security stance worse if the model for the whole system does not exist yet.

Abstract threat modelling is a component in security risk analysis, and it is commonly conducted by applying a speci. A summary of available methods nataliya shevchenko, timothy a. Explore the nuances of softwarecentric threat modeling and discover its. The book describes, from various angles, how to turn that blank page to something useful. Threat modeling should be prepared at the beginning of the system lifecycle, but the model itself should be constantly updated throughout the whole lifecycle process, to reflect the new threats, which appear due to. Learn to use practical and actionable tools, techniques, and approaches for software developers, it professionals, and security enthusiasts. Threat modeling by adam shostack overdrive rakuten. In 2003, octave operationally critical threat, asset, and vulnerability evaluation method, an operationscentric threat modeling. The purpose of threat modeling is to provide defenders with a systematic analysis of the probable attackers profile. In this thesis we ask the question why one should only use just one of the three approaches, and not combine them. Download pdf risk centric threat modeling free online.

Approaches to threat modeling are you getting what you need. Risk centric threat modeling download risk centric threat modeling ebook pdf or read online books in pdf, epub, and mobi format. Explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and softwarecentric. Threat modelling can be applied to a wide range of things, including software, applications, systems, networks, distributed systems, things in the internet of things, business processes, etc. This paper presents a quantitative, integrated threat modeling approach that merges software and attack centric threat modeling techniques.

How to improve your risk assessments with attackercentric. Provides effective approaches and techniques that have been proven at microsoft and elsewhere. Finally, chapter 8 shows how to use the pasta riskcentric threat modeling process to analyze the risks of specific threat agents targeting web applications. Offers actionable howto advice not tied to any specific software, operating system, or programming language. Designing for security is full of actionable, tested advice for software developers, systems architects and managers, and security professionals. Approaches to threat modeling attackercentric assetscentric softwarecentric 14 15. Chapter 6 and chapter 7 examine process for attack simulation and threat analysis pasta. Threat modelling works to identify, communicate, and understand threats and mitigations within the context of protecting something of value.

Using the template editor, you can customize the list of stencils that are available in the threat model editor. Explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and softwarecentric provides effective approaches and techniques that have been proven at microsoft and elsewhere. Threat modeling should become standard practice within security programs and adams approachable narrative on how to implement threat modeling resonates loud and clear. Conceptually, a threat modeling practice flows from a methodology. Top 5 reasons why threat modeling is avoided time over confidence cost underestimation procrastination 14. Threat modeling is most often applied to software applications, but it can be used for operating systems and devices with equal effectiveness. Threat modeling is the crucial process of finding potential securityrelated weaknesses on both technical and process level in each it system. Once the threat model is completed security subject matter experts develop a detailed analysis of the identified threats. Threat modeling is a structured process through which it pros can identify potential security threats and vulnerabilities, quantify the seriousness of each, and prioritize techniques to mitigate. With pages of specific actionable advice, he details how to build better security into the design of systems. Manage potential threats using a structured, methodical framework. The threat modeling technique used in this paper is stride by microsoft which is an abbreviation for spoofing, tampering, repudiation, information disclosure, denial of service and elevation of. Designing for security if youre a software developer, systems manager, or security professional, this book will show you how to use threat modeling in the security development lifecycle and the overall software and systems design processes.

This methodology is intended to provide an attackercentric view of the application and infrastructure from which defenders can develop an assetcentric mitigation strategy. The threat model is composed of a system model representing the physical and network infrastructure layout, as well as a component model illustrating component specific threats. Pdf threat modeling download full pdf book download. Explore the nuances of software centric threat modeling and discover its application to software and systems during the build phase and beyond. Part i covers creating different views in threat modeling, elements of process what, when, with whom, etc. Threat modeling is a structured approach to identifying, quantifying, and addressing threats. Modern threat modelling building blocks fit well into agile and are. Drawing developers into threat modeling adam shostack adam. Threat analysis for hardware and software products using hazop. The 12 threatmodeling methods summarized in this post come from a variety of sources and target different parts of the process. Cyber threat modeling, the creation of an abstraction of a system to identify possible threats, is a required activity for dod acquisition.

Evaluation of threat modeling methodologies theseus. Click download or read online button to risk centric threat modeling book pdf for free now. One of them is the hazards and operability analysis approach, also known as hazop 2, 3. Feb 07, 2014 learn to use practical and actionable tools, techniques, and approaches for software developers, it professionals, and security enthusiasts. Stride was the first technique that guided threat analysis. Additionally, threat modeling can be assetcentric, attackercentric or software centric.

The game uses a variety of techniques to do so in an enticing, supportive. Microsoft threat modeling tool the microsoft threat modeling tool makes threat modeling easier for all developers through a standard notation for visualizing system components, data flows, and security boundaries. The three main approaches for threat modelling are assetcentric, attackercentric or softwarecentric. That is, how to use models to predict and prevent problems, even before youve started coding. Numerous threat modeling methodologies are available for implementation. The template defines all the stencils that can be used to create a threat model, such as generic process or os process. Identifying potential threats to a system, cyber or otherwise, is increasingly important in todays environment. Elevation of privilege is a card game for developers which entices them to learn and execute software centric threat modeling. Process for attack simulation and threat analysis 3 is a risk centric framework, trike 264 is a conceptual framework for security auditing, and visual, agile, and simple threat modelling 8. The 12 threat modeling methods summarized in this post come from a variety of sources and target different parts of the process. This approach is used in threat modeling in microsofts security. Threat modeling and risk management is the focus of chapter 5. When cyber threat modeling is applied to systems being developed it can reduce fielded vulnerabilities and costly late rework. Threat modeling in sdlc will ensure the security builtin from the very beginning of the application development.

Threat modeling is a structured process through which it pros can identify potential security threats and vulnerabilities, quantify the seriousness of each, and prioritize techniques. Experiences threat modeling at microsoft ceur workshop. Dec 03, 2018 performing threat modeling on cyberphysical systems with a variety of stakeholders can help catch threats across a wide spectrum of threat types. What valuable data and equipment should be secured. Provides a unique howto for security and software developers who need to design secure products and systems and test their designs explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and softwarecentric provides effective approaches and techniques that have been proven at. Explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and software centric provides effective approaches and techniques that have been proven at microsoft and elsewhere.

In addition to being a requirement for dod acquisition, cyber threat modeling is of great interest to other federal programs, including the department of homeland security and nasa. A number of techniques exist that help identify and address security risks. Performing threat modeling on cyberphysical systems with a variety of stakeholders can help catch threats across a wide spectrum of threat types. Provides a unique howto for security and software developers who need to design secure products and systems and test their designs explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and software centric provides effective approaches and techniques that have been proven at. Feb 17, 2014 explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and software centric. Softwarecentric softwarecentric threat modeling also called systemcentric, designcentric, or architecturecentric starts from the design of the system, and attempts to step through a model of the system, looking for types of attacks against each element of the model.

Feb 07, 2014 provides a unique howto for security and software developers who need to design secure products and systems and test their designs explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and software centric provides effective approaches and techniques that have been proven at. Finally, chapter 8 shows how to use the pasta risk centric threat modeling process to analyze the risks of specific threat agents targeting web applications. The assetcentric approach focuses on all the individual assets a system or user level resource. From the very first chapter, it teaches the reader how to threat model. Explains how to threat model and explores various threat modeling approaches, such as assetcentric, attackercentric and software centric. Threat modeling is a process by which potential threats, such as structural vulnerabilities or the. Threat modeling begins with a no expectations of an existing threat model or threat modeling capability. Download risk centric threat modeling ebook pdf or read online books in pdf, epub, and mobi format. Jan 01, 2014 threat modeling begins with a no expectations of an existing threat model or threat modeling capability. No one threatmodeling method is recommended over another. Also, the risk and business impact analysis of the method elevates threat modeling from a software development. Approaches to threat modeling attackercentric softwarecentric stride is a softwarecentric approach assetcentric. Recommended approach to threat modeling of it systems. The effort, work, and timeframes spent on threat modelling relate to the process in which engineering is happening and productsservices are delivered.

We have ways to discuss threat models attackercentric vs softwarecentric. Download pdf risk centric threat modeling free online new. Softwarecentric threat modeling, also referred to as systemcentric, designcentric, or architecturecentric, begins with the design model of the system under consideration. Threat modeling defined application threat modeling a strategic process aimed at considering possible attack scenarios and vulnerabilities within a proposed or existing application environment for the purpose of clearly identifying risk and impact levels. Adam shostack is responsible for security development lifecycle threat modeling at microsoft and is one of a handful of threat modeling experts in the world. It allows system security staff to communicate the potential damage of security flaws and prioritize remediation efforts. Microsoft developed the tool and we use it internally on many of our products. Apr 15, 2016 assetcentric approaches to threat modeling utilize attack trees, attack graphs, or through visually illustrating patterns by which an asset can be attacked. Explore the nuances of softwarecentric threat modeling and discover its application to software and systems during the build phase and beyond. Dread, an older technique used for assessing threats.

Malware that exploits software vulnerabilities grew 151 percent in the second. It focuses on all possible attacks that target each of the model elements. Unlike pure verification techniques, such as penetration testing or fuzzing, threatmodeling can be performed before a product or service has been implemented. Typically, threat modeling has been implemented using one of three approaches independently, asset centric, attacker centric, and software centric. Typically, threat modeling has been implemented using one of four approaches independently, assetcentric, attackercentric, and software centric.

In threat modeling, we cover the three main elements. The idea that threat modelling is waterfall or heavyweight is based on threat modelling approaches from the early 2000s. Familiarize yourself with software threat modeling. Software and attack centric integrated threat modeling for. Mar 07, 2014 sdl threat modeling tool beta software centric tool the microsoft sdl threat modeling tool beta allows for structured analysis, proactive mitigation and tracking of potential security and privacy issues in new and existing applications. Security professionals often argue that such approaches to threat modeling should be classified as the inevitable result of a software centric design approach. Finally, appropriate security controls can be enumerated. A familiarity with softwarecentric threat modeling concepts and microsofts stride methodology what youll learn learn techniques for checking that the current feature under development does not make your security stance worse if the model for the whole system does not exist yet. Software centric software centric threat modeling also called systemcentric, designcentric, or architecturecentric starts from the design of the system, and attempts to step through a model of the system, looking for types of attacks against each element of the model. Threat modeling a process by which potential threats can be identified, enumerated, and prioritized all from a hypothetical attackers point of view. Threat modeling also called architectural risk analysis is an essential step in. The threat model editor uses a template to guide users as they create threat models. Software centric threat modeling, also referred to as systemcentric, designcentric, or architecturecentric, begins with the design model of the system under consideration. Without threat modeling, you can never stop playing whack amole.