Category: Embedded Systems

  • Top 10 Embedded Security Vulnerabilities

    Top 10 Embedded Security Vulnerabilities

    Nearly all of detected security vulnerabilities can be attributed to just 10 types. Here, we discuss the most common cybersecurity vulnerabilities and offer guidance on how to mitigate their risk.

    Vulnerability 10: Numeric Errors

    Numeric errors can refer to several different categories of problems, including wrap around errors, improper validation of array index, integer overflow, incorrect byte ordering and more. A common place for numeric errors is in math calculations and data overflow from an external source.

    Vulnerability 9: Cryptographic Issues

    Cryptographic issues are weaknesses related to the use of cryptography. This type of vulnerability is often caused by missing encryption of sensitive data, inadequate encryption strength and more.

    Vulnerability 8: Code Injection

    Code injections effect interpreted environments such as PHP.

    Vulnerability 7: Code

    This is a catchall vulnerability that can include such things as mismanaging passwords, improper handling of API contracts and code generation issues.

    Vulnerability 6: Resource Management Errors

    This type of vulnerability refers to a wide range of issues, including improper management of system resources, resource locking and insufficient resource pool.

    Vulnerability 5: Improper Access Control

    Improper access control is when software does not restrict, or incorrectly restricts, access to a resource from an unauthorized actor.

    Vulnerability 4: Improper Input Validation

    Improper input validation refers to getting incorrect or missing information from anything that could possibly impact a program’s control flow or data flow.

    Vulnerability 3: Information Exposure

    Information exposure is the intentional or unintentional disclosure of information that isn’t explicitly authorized.

    Vulnerability 2: Access Control

    This vulnerability refers to any weakness related to the management of permissions, privileges or other security features.

    Vulnerability 1: Memory Buffer Problems

    Memory buffer problems occur when software can read or write to locations outside the boundaries of the memory buffer.

    How to Prevent Cyberattacks

    An effective way to address each of these vulnerabilities is to rely on a static code analysis and static application security testing (SAST) tool. These types of tools analyze your code as it’s being written for potential coding errors, bugs and vulnerabilities. By addressing vulnerabilities earlier in development, you save time and money.

    For a more in-depth look at these 10 vulnerabilities and how to best mitigate their potential risk, review the associated white paper.

    To read more, please visit: www.perforce.com/blog/kw/common-software-vulnerabilities

  • What Is IEC 62443?

    What Is IEC 62443?

    IEC 62443 helps to protect industrial automation and control systems from security breaches. Read on to learn more about the standard.

    What You Need to Know About IEC 62443

    IEC 62443 is a set of security standards for the secure development of Industrial Automation and Control Systems (IACS) that provides a thorough and systematic set of cybersecurity recommendations. The security standard is used to defend industrial networks against cybersecurity vulnerabilities.

    The IEC 62443 Security Levels

    A central part of IEC 62443 are security levels (SL), which are used to assess the cybersecurity risks to each system. An additional benefit of security levels is that they help you to understand how to best address the identified cybersecurity risks. There are five security level values, which range from 0 (the minimum level of risk) to 4 (the maximum level of risk).

    The 7 Security Level Foundational Requirements

    For each security level, there are seven specific foundational requirements that must be met. These requirements help you to ensure that each IACS has the right security and safety safeguards.

    The seven foundational requirements for a security level are:

    1. Identification and Authentication Control
    2. Use Control
    3. System Integrity
    4. Data Confidentiality
    5. Restricted Data Flow
    6. Timely Response to Events
    7. Resource Availability

    In addition, each foundational requirement has multiple conditions that must also be met, depending on the safety level.

    What You Need to Know to Comply with IEC 62443

    An essential part of complying with IEC 62443 is using a static code analysis tool. Static code analysis tools automatically identify vulnerabilities and defects as you code. In addition, IEC 62443 requires that a static analysis tool be used to enforce secure coding standards, such as CWE, CERT, and OWASP. By using secure coding standards, you ensure your software is secure and safeguarded from vulnerabilities.

    To read more, please visit: https://www.perforce.com/blog/kw/what-is-iec-62443