Cybersecurity is still a major concern in today’s IT industry due to increased hacking attacks.
Since so many aspects of our lives have moved online, security breaches might seriously affect society’s public and private sectors.
Cybersecurity experts are deploying various defences and responses to protect sensitive information and transactional data. It’s an overwhelming task, especially given the number of attacks that are now accessible.
In this blog, we shall discuss threat modeling, network security model, threat in cybersecurity and threat modelling process in detail.
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What is Threat Modeling?
By identifying objectives, pinpointing weaknesses, and creating countermeasures to either avoid or lessen the effects of cyber-attacks against the system, threat modeling is a technique for improving network security.
Threat modeling can be done by security teams at any stage of the development process, although starting it at the beginning of the project is optimal. Threats can be detected earlier and neutralized in this manner before they cause problems.
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The Threat Modeling Process
Threat modeling entails describing an organization’s assets, determining each application’s role in the overall structure of things, and creating a security policy for each application. The procedure then moves on to identifying and ranking potential hazards, documentation of any adverse occurrences and the necessary corrective action.
Or threat modeling is taking a step back, evaluating your company’s digital and network assets, finding vulnerabilities, identifying threats, and developing plans to defend against or recover from them.
Even though it may seem obvious, you’d be surprised at how little attention some industries devote to security. In our society, some people leave their mobile devices unlocked or use the word “PASSWORD” as a password. Given this, it should be no surprise that many businesses and organizations have yet to give threat modeling any thought.
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Now, we shall look at the ten threat medeling methodologies or threat modelling process.
Ten Threat Modeling Methodologies
As there are several forms of cyberattacks, there are numerous strategies for thwarting them. Here are eleven prevalent threat modeling techniques that are still in use today.
STRIDE
It offers a mnemonic for recognizing security threats in six categories and was developed by Microsoft for threat modeling.
- Spoofing: A hacker impersonating a different user, system component, or feature with an identity in the modelled system.
- Tampering: changing system data to fulfil a malicious purpose
- Repudiation: The ability of an intrusion to deny that they committed a hostile activity due to the lack of sufficient evidence.
- Information Disclosure: Giving access to protected data even when the user cannot see it.
- Denial of Service: An enemy employs unethical methods to drain resources required to serve people.
- Elevation of Privilege: Giving unauthorized users the ability to use commands and features.
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DREAD
Microsoft withdrew it in 2008 because of the uneven ratings after it was proposed for threat modeling. At the moment, DREAD is used by OpenStack and numerous other organizations. It involves ranking and evaluating security risks according to one of five categories:
- Damage Potential: Determines how much damage an exploited weakness caused and ranks it.
- Reproducibility: Ranks how simple it is to launch an attack
- Exploitability: assigns a score to the effort needed to initiate the attack.
- Affected Users: A metric represents the number of users a common exploit may negatively impact.
- Discoverability: Evaluates how simple it is to find the threat.
P.A.S.T.A
This acronym stands for Process for Attack Simulation and Threat Analysis, a risk-focused technique with seven steps. It provides a dynamic approach for identifying, listing, and scoring threats.
Developers can construct an asset-centric mitigation approach by examining the application from the attacker’s perspective once specialists have created a thorough analysis of the dangers detected.
Trike
Trike’s method of risk management includes threat models as a crucial element. Threat models establish the level of risk that is “acceptable” for each asset class based on stakeholder definitions and requirement models.
A threat model created by evaluating requirements models identifies threats and assigns them a level of risk. After the threat model is finished, the risk model is built, accounting for actions, resources, roles, and calculated risk exposure.
VAST
VAST stands for Visual, Agile, and Simple Threat Modeling, and it offers actionable results tailored to the demands of different stakeholders, including application architects, developers, and cybersecurity specialists. To make the design and usage of threat models possible without specialized knowledge in security-related fields, VAST provides an innovative application and infrastructure visualization strategy.
Attack Tree
The tree, consisting of a root node, leaves, and child nodes filled in, is a conceptual picture illustrating how an asset or target could be attacked. The direct parent node must be satisfied for it to be true. Only a node’s immediate children can fulfil a node. There are different paths to achieving these objectives represented by the “AND” OR ” alternatives.
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Common Vulnerability Scoring System (CVSS)
This technique offers a mechanism to identify a vulnerability’s key traits and assign a number score (ranging from 0 to 10, with 10 being the worst) indicating the severity of the vulnerability. The result of the translation is a qualitative representation of the score (e.g., Low, Medium, High, and Critical). Organizations can use this representation to evaluate and prioritise their individual vulnerability management strategies.
T-MAP
Attack route weights are typically determined using the T-MAP method in Commercial Off the Shelf (COTS) systems. Access class, vulnerability, target assets, and affected value are only a few of the UML class diagrams that are included in the model.
OCTAVE
Using a risk-based approach for strategic assessment and planning, the Operationally Critical Threat, Asset, and Vulnerability Evaluation (OCTAVE) procedure is used.
OCTAVE does not address technology risks but primarily focuses on evaluating organisational risks.
Three phases make up OCTAVE:
- Phase 1: Build Asset-Based Threat Profiles.
- Phase 2: Identify Infrastructure Vulnerabilities.
- Phase 3: Develop Security Strategy and Plans.
Quantitative Threat Modeling Method
This hybrid approach combines the strengths of attack trees, STRIDE, and CVSS. Threat modelling for cyber-physical systems with intricate component interdependencies addresses several pressing problems.
The first step is to create component attack trees for the STRIDE categories. The dependencies in the attack categories and low-level component attributes are displayed in these trees.
The scores for each tree branch are determined using the CVSS method.
Security concerns are assessed in many ways, which is great since they are genuine and will continue to exist as long as hackers discover new ways to commit evil deeds.
Now that you have understood threat modeling, network security model, and threat in cybersecurity, the threat modeling process and what is a threat in cyber security. So, if you are interested in beginning your career in cyber security, you can join a Cyber Security Course In Coimbatore, which will help you have a profound understanding of the threat modelling process and what is threat in cyber security.
