CompTIA Security+
1 Threats, Attacks, and Vulnerabilities
1-1 Types of Threats
1-2 Types of Attacks
1-3 Vulnerabilities
1-4 Threat Actors and Motives
1-5 Threat Intelligence
1-6 Incident Response
1-7 Penetration Testing
1-8 Vulnerability Scanning
1-9 Threat Modeling
1-10 Security Controls
2 Technologies and Tools
2-1 Firewalls
2-2 Intrusion Detection Systems (IDS)
2-3 Intrusion Prevention Systems (IPS)
2-4 Security Information and Event Management (SIEM)
2-5 Data Loss Prevention (DLP)
2-6 Security Orchestration, Automation, and Response (SOAR)
2-7 Endpoint Security
2-8 Network Security
2-9 Cloud Security
2-10 Mobile Device Security
2-11 Secure Coding Practices
2-12 Cryptography
2-13 Public Key Infrastructure (PKI)
2-14 Certificate Management
2-15 Security Tools and Utilities
3 Architecture and Design
3-1 Security Models
3-2 Security Controls
3-3 Secure Network Design
3-4 Secure Systems Design
3-5 Secure Application Design
3-6 Secure Cloud Architecture
3-7 Secure Mobile Architecture
3-8 Secure IoT Architecture
3-9 Secure Data Storage
3-10 Secure Backup and Recovery
3-11 Security in DevOps
3-12 Security in Agile Development
3-13 Security in Continuous IntegrationContinuous Deployment (CICD)
3-14 Security in Configuration Management
3-15 Security in Identity and Access Management (IAM)
4 Identity and Access Management
4-1 Authentication Methods
4-2 Authorization Mechanisms
4-3 Identity and Access Management (IAM) Concepts
4-4 Single Sign-On (SSO)
4-5 Multi-Factor Authentication (MFA)
4-6 Federation
4-7 Role-Based Access Control (RBAC)
4-8 Attribute-Based Access Control (ABAC)
4-9 Identity as a Service (IDaaS)
4-10 Identity Lifecycle Management
4-11 Access Reviews and Audits
4-12 Privileged Access Management (PAM)
4-13 Identity Federation
4-14 Identity Provisioning and Deprovisioning
5 Risk Management
5-1 Risk Management Concepts
5-2 Risk Assessment
5-3 Risk Mitigation Strategies
5-4 Business Impact Analysis (BIA)
5-5 Risk Register
5-6 Risk Treatment
5-7 Risk Monitoring and Reporting
5-8 Risk Appetite and Tolerance
5-9 Risk Communication
5-10 Risk Transfer
5-11 Risk Acceptance
5-12 Risk Avoidance
5-13 Risk Reduction
5-14 Risk in Cloud Environments
5-15 Risk in Mobile Environments
5-16 Risk in IoT Environments
6 Cryptography and PKI
6-1 Cryptographic Concepts
6-2 Symmetric Encryption
6-3 Asymmetric Encryption
6-4 Hashing
6-5 Digital Signatures
6-6 Public Key Infrastructure (PKI)
6-7 Certificate Management
6-8 Certificate Authorities (CAs)
6-9 Certificate Revocation
6-10 Key Management
6-11 Cryptographic Protocols
6-12 Cryptographic Attacks
6-13 Quantum Cryptography
6-14 Post-Quantum Cryptography
6-15 Cryptographic Use Cases
7 Security Operations
7-1 Security Operations Concepts
7-2 Security Policies and Procedures
7-3 Security Awareness and Training
7-4 Security Monitoring and Logging
7-5 Incident Response
7-6 Forensics
7-7 Disaster Recovery
7-8 Business Continuity
7-9 Physical Security
7-10 Personnel Security
7-11 Supply Chain Security
7-12 Third-Party Risk Management
7-13 Security Audits and Assessments
7-14 Compliance and Regulatory Requirements
7-15 Security Metrics and Reporting
7-16 Security Operations Center (SOC)
7-17 Security Orchestration, Automation, and Response (SOAR)
7-18 Security in DevOps
7-19 Security in Agile Development
7-20 Security in Continuous IntegrationContinuous Deployment (CICD)
1.8 Vulnerability Scanning Explained

1.8 Vulnerability Scanning Explained

Key Concepts

Vulnerability scanning is a critical process in cybersecurity that involves identifying, classifying, and prioritizing vulnerabilities in computer systems, networks, and applications. This process helps organizations understand their security posture and take proactive measures to mitigate risks.

Types of Vulnerability Scans

There are several types of vulnerability scans, each designed to address different aspects of security:

1. Network Vulnerability Scanning

Network vulnerability scanning involves scanning the entire network to identify vulnerabilities in network devices such as routers, switches, and firewalls. This type of scan helps in detecting misconfigurations, weak passwords, and outdated software.

2. Web Application Vulnerability Scanning

Web application vulnerability scanning focuses on identifying vulnerabilities in web applications, such as SQL injection, cross-site scripting (XSS), and insecure direct object references. These scans are crucial for protecting sensitive data and ensuring the integrity of web applications.

3. Host-Based Vulnerability Scanning

Host-based vulnerability scanning involves scanning individual hosts or servers to identify vulnerabilities in operating systems, applications, and configurations. This type of scan helps in detecting missing patches, weak configurations, and unauthorized software.

Examples and Analogies

To better understand vulnerability scanning, consider the following examples:

Network Vulnerability Scan Example

Imagine a network vulnerability scan as a security guard patrolling a large building. The guard checks each door, window, and security system to ensure they are secure and functioning properly. If any vulnerabilities are found, such as an unlocked door, the guard takes immediate action to secure it.

Web Application Vulnerability Scan Example

Consider a web application vulnerability scan as a quality control inspector in a factory. The inspector checks each product for defects, such as cracks or missing parts, to ensure the final product is safe and functional. Similarly, a web application scan checks for vulnerabilities that could compromise the application's security.

Host-Based Vulnerability Scan Example

Think of a host-based vulnerability scan as a mechanic inspecting a car. The mechanic checks the engine, brakes, and other critical components for wear and tear, ensuring the car is safe to drive. Similarly, a host-based scan checks the operating system and applications on a server to ensure they are secure and up-to-date.

Conclusion

Vulnerability scanning is an essential practice in cybersecurity that helps organizations identify and mitigate security risks. By conducting regular scans, organizations can ensure their systems, networks, and applications are secure and protected against potential threats.