A Guide to Container Hardening Why Container Hardening Matters: Containers encapsulate application code, dependencies, and runtime, providing a lightweight and isolated environment. While this isolation contributes to the efficiency of deployment, it is essential to acknowledge that security is a shared responsibility. Containerized applications, if not properly secured, can become potential targets for attacks. Container hardening is the process of securing these environments by reducing their attack surface and mitigating vulnerabilities. Key Strategies for Container Hardening: 1.Start with a Minimal Base Image: Choose minimal and purpose-built base images for your containers. These images contain only the essential components required to run your application, reducing the potential points of attack. Popular choices include Alpine Linux for its lightweight nature and reduced attack surface. 2.Regularly Update and Patch: Keep your container images up to date by regularly updating software packages and dependencies. Apply security patches promptly to address known vulnerabilities. Automate the update process to ensure consistency and efficiency. 3.Limit User Privileges: Implement the principle of least privilege by restricting user permissions within the container. Avoid running processes as the root user whenever possible. Instead, create and use non-privileged users with the minimum necessary permissions. 4.Utilize Appropriate Resource Constraints: Employ resource constraints to prevent resource exhaustion attacks. Define limits for CPU, memory, and other system resources, ensuring that a compromised container cannot consume excessive resources and impact the overall system performance. 5.Network Segmentation and Firewalls: Use network segmentation to isolate containers from each other and from the host system. Implement firewalls to control incoming and outgoing traffic, allowing only necessary communication between containers and external services. 6.Enable Content Trust and Digital Signatures: Implement container image signing to ensure the integrity and authenticity of images. Enable content trust to verify the source and integrity of images before deployment. This helps prevent the use of compromised or tampered images in your environment. 7.Continuous Monitoring and Logging: Set up continuous monitoring and logging to detect and respond to security incidents promptly. Monitor container activity, network traffic, and system logs. Leverage container orchestrators' built-in logging features or integrate with external logging solutions.
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Code Review and Testing: Thoroughly review and test the device driver code to identify and fix potential vulnerabilities. Employ best practices and security guidelines during the development process. Hardware-Based Security Measures: Utilize hardware-based security features provided by the hardware accelerator where possible. These could include hardware encryption, secure boot mechanisms, and hardware-based access controls. Isolation and Sandboxing: Implement isolation mechanisms to separate the device driver's execution environment from other system components. Use sandboxing techniques to restrict the driver's privileges and interactions with critical system resources. Secure Firmware Updates: Ensure that firmware updates for hardware accelerators are securely delivered and authenticated. Unauthorized or tampered updates can lead to security breaches. Data Validation and Input Sanitization: Implement strict input validation mechanisms to prevent buffer overflows, injection attacks, and other common security vulnerabilities. Validate and sanitize data coming from external sources before processing it within the device driver. Least Privilege Principle: Grant the minimum necessary privileges and access rights to the device driver. Follow the principle of least privilege to limit the driver's capabilities and reduce the potential attack surface. Secure Communication Channels: Encrypt communication channels between the device driver and the hardware accelerator. Use secure protocols and encryption algorithms to protect data in transit. Continuous Monitoring and Logging: Implement robust logging mechanisms to monitor the behavior of the device driver and detect potential security incidents. Continuous monitoring can help identify abnormal activities or attempted breaches. Regular Security Updates and Patch Management: Stay updated with security patches and updates provided by the hardware accelerator's manufacturer. Apply patches and updates promptly to address known vulnerabilities and improve security. Security Audits and Penetration Testing: Conduct regular security audits and penetration tests to identify weaknesses and vulnerabilities in the device driver's security. Address the identified issues to strengthen the overall security posture. Vendor and Community Support: Engage with the hardware accelerator's vendor and community forums to stay informed about security best practices, updates, and any reported vulnerabilities.
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Are you secure? 1. Read blog post bellow 2. Check your Rockwell PanelView: CVE-2023-2071 (9.8) CVE-2023-29464 (8.2)
Microsoft researchers discovered two vulnerabilities in Rockwell Automation’s PanelView Plus that could be remotely exploited by attackers to allow remote code execution (RCE) and denial of service (DoS). PanelView Plus devices are graphic terminals, also known as human machine interface (HMI), used in the industrial sector. Both vulnerabilities are related to custom classes in PanelView Plus. The RCE vulnerability involves two custom classes that could be used to upload and load a malicious DLL into the device. The DoS vulnerability takes advantage of the same custom class to send a crafted buffer that the device is unable to handle properly, thus leading to a DoS. Microsoft reported these findings to Rockwell Automation in May and July 2023, and Rockwell Automation published security patches to address the vulnerabilities in September and October 2023. We’re sharing our research to help developers, vendors, and the industry in general to avoid or detect similar issues in their systems. Read our latest blog to get our analysis of the vulnerabilities, as well as mitigation and protection guidance for defenders: https://msft.it/6046l8Ufn
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NeuVector is a container security platform designed to protect containerized applications throughout their lifecycle. It focuses on providing security solutions for enterprises adopting containerization and microservices architectures. Key features of NeuVector include vulnerability scanning, runtime protection, network segmentation, and compliance monitoring. Here are some key aspects of NeuVector: 1. Vulnerability Scanning: NeuVector helps identify vulnerabilities in container images during the build and deployment stages. It can analyze container images for security vulnerabilities and recommend remediation actions. 2. Runtime Protection: The platform provides runtime protection for containerized applications. It monitors container behavior in real-time, detecting and preventing security threats such as zero-day attacks, abnormal activities, and unauthorized access. 3. Network Segmentation: NeuVector includes features for network segmentation within containerized environments. This helps prevent lateral movement of threats by controlling network traffic between containers. 4. Compliance Monitoring: NeuVector helps organizations maintain compliance with industry regulations and security standards. It can audit and report on security configurations, ensuring that containerized environments adhere to necessary compliance requirements. 5. Intelligent Learning: The platform utilizes machine learning and behavioral analysis to understand the normal behavior of applications. This intelligent learning approach helps in detecting anomalies and potential security threats. 6. Integration with CI/CD Pipelines: NeuVector integrates with continuous integration and continuous deployment (CI/CD) pipelines, allowing security checks to be incorporated into the development and deployment process. This helps in identifying and addressing security issues early in the software development lifecycle. 7. Visibility and Monitoring: NeuVector provides visibility into containerized environments, offering dashboards and reports to monitor security events, network traffic, and compliance status. This visibility aids in incident response and troubleshooting. 8. Container Firewall: The platform includes a container-aware firewall that can enforce security policies based on container identity and behavior. This helps in preventing unauthorized communication between containers. Summary: NeuVector is designed to address the unique security challenges introduced by containerized applications, where dynamic and ephemeral workloads require a different approach to security compared to traditional monolithic applications. By providing a comprehensive set of security features, NeuVector aims to help organizations secure their containerized environments and maintain compliance with industry regulations.
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Microsoft researchers discovered two vulnerabilities in Rockwell Automation’s PanelView Plus that could be remotely exploited by attackers to allow remote code execution (RCE) and denial of service (DoS). PanelView Plus devices are graphic terminals, also known as human machine interface (HMI), used in the industrial sector. Both vulnerabilities are related to custom classes in PanelView Plus. The RCE vulnerability involves two custom classes that could be used to upload and load a malicious DLL into the device. The DoS vulnerability takes advantage of the same custom class to send a crafted buffer that the device is unable to handle properly, thus leading to a DoS. Microsoft reported these findings to Rockwell Automation in May and July 2023, and Rockwell Automation published security patches to address the vulnerabilities in September and October 2023. We’re sharing our research to help developers, vendors, and the industry in general to avoid or detect similar issues in their systems. Read our latest blog to get our analysis of the vulnerabilities, as well as mitigation and protection guidance for defenders: https://msft.it/6046l8Ufn
Vulnerabilities in PanelView Plus devices could lead to remote code execution | Microsoft Security Blog
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Securing a network operating system involves a comprehensive approach. Below are some suggestions for security testing and preventive measures. Please note that security is a complex field, and these are general guidelines: Security Testing: Penetration Testing: Conduct penetration testing to identify vulnerabilities. Simulate real-world attacks to test the system's defenses. Code Review: Perform a thorough code review to identify and fix security issues. Look for potential injection vulnerabilities, insecure dependencies, and sensitive data exposure. Security Scanning Tools: Use automated security scanning tools to identify common vulnerabilities. Tools like bandit for Python or OWASP ZAP for web applications can be beneficial. Access Control Testing: Verify that access controls are properly implemented. Ensure that users have the minimum necessary permissions. Data Validation: Validate and sanitize user inputs to prevent SQL injection, XSS, and other injection attacks. Secure Configuration Checks: Review the server and network configurations to ensure they follow security best practices. Disable unnecessary services and features. Security Prevention Measures: Input Validation: Implement strong input validation to prevent malicious data input. API Key Security: Avoid hardcoding API keys directly in the code. Use secure methods like environment variables or key vaults. Encryption: Encrypt sensitive data, especially during communication. Use secure encryption protocols for network traffic. Authentication and Authorization: Implement strong user authentication mechanisms. Enforce proper authorization controls to limit access to authorized entities. Logging and Monitoring: Implement comprehensive logging but avoid logging sensitive information. Set up monitoring systems to detect and respond to suspicious activities. Dependency Management: Regularly update dependencies to patch known vulnerabilities. Use tools like safety for Python to check for known security issues in libraries. Secure Coding Practices: Follow secure coding practices. Be cautious about buffer overflows, code injection, and other common vulnerabilities. Error Handling: Implement proper error handling to avoid exposing sensitive information. Provide generic error messages to users. Regular Updates: Keep the system and its components up-to-date with the latest security patches. Security Training: Educate the development team on security best practices and conduct regular security awareness training. Remember that security is an ongoing process, and staying vigilant against emerging threats is crucial. Consider involving security experts for a more in-depth analysis and testing.
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Engineer - Cloud, Container || Advocating for Excellence in Cloud, SRE, DevOps, GitOps, IaC and Platform Engineering || Enterprise-Wide Automation
I recently conducted a workshop on the OpenShift Container Platform, focusing on the platform's key security features. As a container orchestration and management platform, OpenShift provides a robust set of security capabilities. Of the roughly 12 key security features in OpenShift, the 𝐭𝐨𝐩 𝟏 that piqued my interest was: ➊ 𝐏𝐨𝐝 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐏𝐨𝐥𝐢𝐜𝐢𝐞𝐬 They are essentially control mechanism capabilities that enforce security best practices and policies on pods in Kubernetes/OpenShift. ⓐ 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐂𝐨𝐧𝐭𝐞𝐱𝐭 𝐂𝐨𝐧𝐬𝐭𝐫𝐚𝐢𝐧𝐭𝐬(𝐒𝐂𝐂) ➼ Its an OpenShift-specific feature. It is a control mechanism capability to manage access for pods in the OpenShift cluster. SCC controls the actions that a pod can perform and what it has the ability to access. They define a set of conditions that a pod must run with in order to be accepted into the system. ⓑ 𝐏𝐨𝐝𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐀𝐝𝐦𝐢𝐬𝐬𝐢𝐨𝐧 𝐂𝐨𝐧𝐭𝐫𝐨𝐥𝐥𝐞𝐫𝐬 ➼ Native to Kubernetes. Similar to SCC in OpenShift, PSPs (Admission Controllers) is a control mechanism used to enforce security controls on pods. Once defined and applied in the cluster, they're evaluated during the pod creation process and can prevent the creation of pods that don't adhere to the defined security policies. ➡ 𝐔𝐬𝐞 𝐂𝐚𝐬𝐞𝐬 As an administrator, consider the following scenarios: ⚫ 𝐑𝐞𝐬𝐭𝐫𝐢𝐜𝐭 𝐏𝐨𝐝(𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫𝐬) 𝐩𝐫𝐢𝐯𝐢𝐥𝐞𝐠𝐞𝐬. For instance: ➼ Prevent containers from running as root users to mitigate the impact of security vulnerabilities. ➼ Limiting access to host resources, networking, or host ports with the aim to reduce the risk of network-based attacks. ➼ Preventing containers from mounting specific types of filesystems. ⚫Enable 𝐇𝐨𝐬𝐭 𝐌𝐨𝐮𝐧𝐭 𝐑𝐞𝐬𝐭𝐫𝐢𝐜𝐭𝐢𝐨𝐧𝐬 to prevent containers from accessing sensitive files or directories on the host system.
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Vulnerability Scanning Tools OpenVAS: A free and open-source vulnerability scanner. OpenVAS can perform comprehensive security assessments and performance tuning. Acunetix: A paid web application vulnerability scanner. Acunetix offers advanced scanning techniques and comprehensive reporting to identify more than 7,000 vulnerabilities in web applications. Qualys Cloud Platform: A paid cloud-based vulnerability management platform with a 30-day trial. Qualys provides continuous monitoring and visibility across networks, web applications, and endpoints in an IT ecosystem. Nexpose: A paid comprehensive on-premises vulnerability scanner with a 30-day trial. Nexpose scans and identifies vulnerabilities in network assets, databases, web applications, and even virtualization and cloud infrastructure. SAINT Security Suite: A paid security scanner and penetration testing tool with a free trial. SAINT includes features for vulnerability management, configuration assessment, penetration testing, incident response, and reporting. Nikto: A free and open-source web server scanner and tester. Nikto can check for more than 6,000 potentially dangerous files and programs on web servers, as well as outdated servers and other problems. GFI LanGuard: A paid network security scanner and tool for endpoint protection and patch management with a demo. GFI LanGuard can scan networks to identify vulnerabilities, manage patches, and ensure compliance with security standards.
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RASP: Real-Time Application Security for Robust Protection Runtime Application Self-Protection (RASP) is a cutting-edge security technology that defends applications during production by autonomously detecting and blocking potentially malicious activities. By monitoring an application's behavior at runtime, RASP analyzes real-time context, automatically thwarting security events like shell attempts, file openings, or database calls. ==>Key Benefits of RASP: - Real-time Detection and Blocking: RASP identifies and blocks attacks in real-time by analyzing an application's actual behavior. - Precision Security Alerts: Unlike traditional methods, RASP reduces false positives, providing accurate alerts and allowing security teams to focus on strategic priorities. - Context-Aware Security: With knowledge of an application's runtime context, RASP delivers tailored security without modifying application code. ==>How RASP Works RASP, integrated into the application runtime environment, adds security checks and evaluates calls to ensure safety. When an unsafe call occurs, RASP intervenes, blocking actions and enhancing overall application security. ==>RASP vs. WAF: While RASP and Web Application Firewalls (WAFs) are distinct, they can complement each other. WAFs analyze traffic at the perimeter, while RASP blocks malicious activity within the application. RASP's adaptability provides real-time defense against a variety of attacks, working seamlessly with ongoing application updates. ==> 3 Tips for RASP Success: 1. Comprehensive Application Security: RASP is most effective as part of a broader application security program. 2. Integration with DevSecOps: Evaluate RASP's compatibility with existing tools and DevSecOps systems for seamless integration. 3. Thorough Testing: Before implementation, rigorously test RASP to understand its impact on application performance. #RASP #ApplicationSecurity #CyberSecurity
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#ApplicationSecurity #Cybersecurity Advancement in domain-specific industries has increased the need for developing software applications. However, the rapidness of development has introduced security vulnerabilities. Application security is crucial to protect organizations from breaches and regulatory issues. Proactive measures like threat modeling, continuous security testing, and immutable infrastructure can help maintain a strong security posture. Best practices such as DevSecOps integration, zero-trust architecture, and real-time response systems further enhance application security. By adopting these strategies, organizations can prevent and fix security flaws early in the development process. #StaySecure #ProtectYourApps#ApplicationSecurity #Cybersecurity Advancement in domain-specific industries has increased the need for developing software applications. However, the rapidness of development has introduced security vulnerabilities. Application security is crucial to protect organizations from breaches and regulatory issues. Proactive measures like threat modeling, continuous security testing, and immutable infrastructure can help maintain a strong security posture. Best practices such as DevSecOps integration, zero-trust architecture, and real-time response sy...
Applications Security: A Strategic Perspective
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A world without internet will be a joke CERTIFIED ETHICAL HACKER | CERTIFIED PENETRATION TESTER | SECURITY RESEARCHER
𝐍𝐞𝐬𝐬𝐮𝐬 Nessus is a widely used vulnerability assessment tool developed by Tenable Network Security. It is designed to identify vulnerabilities, misconfigurations, and security issues within network devices, systems, and applications. Nessus performs comprehensive scans of target systems and provides detailed reports outlining discovered vulnerabilities and potential risks. Key features of Nessus include: 1. **Vulnerability Scanning**: Nessus conducts thorough scans of network devices, servers, workstations, and applications to identify known vulnerabilities. It covers a wide range of operating systems, applications, and network devices. 2. **Plugin Architecture**: Nessus utilizes a plugin-based architecture, which allows it to support a vast and constantly updated database of vulnerability checks. These plugins cover various vulnerability types, including missing patches, misconfigurations, weak passwords, and insecure protocols. 3. **Policy Compliance Checks**: Nessus can assess systems against predefined security policies and industry standards (such as CIS benchmarks), helping organizations ensure compliance with regulatory requirements (e.g., PCI DSS, HIPAA, GDPR). 4. **Web Application Scanning**: Nessus offers web application scanning capabilities to identify security flaws in web applications, such as cross-site scripting (XSS), SQL injection, and insecure authentication mechanisms. 5. **Scalability and Performance**: Nessus is designed to handle large-scale network environments, allowing organizations to conduct scans across thousands of systems efficiently. 6. **Customization and Reporting**: Users can customize scan policies and configure scans to meet specific requirements. Nessus provides detailed reports with remediation recommendations, allowing organizations to prioritize and address identified vulnerabilities effectively. 7. **Integration**: Nessus integrates with other security tools and platforms, including Security Information and Event Management (SIEM) systems, ticketing systems, and workflow automation tools, to streamline vulnerability management processes. Nessus is widely used by security professionals, IT administrators, and organizations of all sizes to proactively identify and address security weaknesses, thereby reducing the risk of cyber attacks and data breaches. It is available in both commercial and free versions, with the commercial version offering additional features, support, and capabilities.
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