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As cloud adoption and digital transformation increases, more sensitive data from applications is being stored in data containers. This is... Application Connectivity Management How to Make Container Security Threats More Containable Prof. Avishai Wool 2 min read Prof. Avishai Wool Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 9/8/22 Published As cloud adoption and digital transformation increases, more sensitive data from applications is being stored in data containers. This is why effective container security controls to securely manage application connectivity is an absolute must. AlgoSec CTO and Co-Founder, Prof. Avishai Wool provides some useful container security best practices to help you do just that. What is Container Security? Organizations, now more than ever, are adopting container technology. Instead of powering up servers and instances in the cloud, they are using containers to run business applications. Securing these is equally as important as securing other digital assets that the business is dependent on. There are two main pillars to think about: The code: you want to be able to scan the containers and make sure that they are running legitimate code without any vulnerabilities. The network: you need to control access to and from the container (what it can connect to), both inside the same cluster, other clusters, and different parts of the network. How critical is container security to managing application connectivity risks? To understand the role of container security within the overall view of network security, there are three points to consider. First, if you’re only concerned about securing the containers themselves, then you’re looking at nano-segmentation , which involves very granular controls inside the applications. Second, if you’re thinking about a slightly wider scope then you may be more concerned with microsegmentation , where you are segmenting between clusters or between servers in a single environment. Here you will want to enforce security controls that determine the allowable communication between specific endpoints at specific levels. Finally, if the communication needs to go further, from a container inside one cluster within one cloud environment to an asset that’s outside of the data center, then that might need to go through broader segmentation controls such as zoning technologies, security groups or a firewall at the border. So, there are all these layers where you can place network security policies. When you’re looking at a particular connectivity request (say for a new version of an application) from the point of view of a given container you should ask yourself: what is the container connected to? What is it communicating with? Where are those other sides of the connectivity placed? Based on that determination, you will then know which security controls you need to configure to allow that connectivity through the network. How does containerization correlate with application centric security policy management? There are a number of different aspects to the relationship between container security and application security. If an application uses containers to power up workloads then container security is very much an integral part of application security. When you’re adding new functionality to an application, powering up additional containers, asking containers to perform new tasks whereby they need to connect to additional assets, then the connectivity of those containers needs to be secured. And security controls need to be regulated or changed based on what the application needs them to do. Another factor in this relationship is the structure of the application. All the containers that run and support the application are often located in one cluster or a micro-segment of the network. So, much of the communication takes place inside that cluster, between one container or another, all in the same cluster. However, some of it can go to another cluster or somewhere that’s not even containerized. This is actually a good thing from an application point of view as the container structure can be used to understand the application structure as well. Not sure about container orchestration? Here’s what to know Container orchestration is part of a bigger orchestration play which is, in general, related to the concept of infrastructure as code. You want to be able to power up an environment with all the assets it requires, and have it function simultaneously so you can duplicate it. There are various orchestration technologies that can be used to deploy the security policies for containers , which is an excellent way to maintain container-based applications in a consistent and repeatable manner. Then if you need to double it or multiply it by 100, you can get cookie-cutter copies of the same thing. How will container security solutions play out in the future? Organizations today have the technology to enforce security controls at the container level, but these controls are very granular and it’s time-consuming to set policies and enforce them, particularly with issues like staff or skills shortages. Looking ahead, companies are likely to take a hierarchical view where container-based security is controlled at the application level by app owners or developers, and at the broader levels to ensure that the measures deployed throughout the network have the same degree of sophistication. Procedures and tooling are all evolving, so we don’t have a definitive answer as to how this will all end up. What are organizations going to be doing? Where will they place their controls? Who has the power to make the changes? When newer technologies are deployed, customer adoption will be crucial to understanding what makes the most sense. This will be interesting as there will be multiple scenarios to help companies master their security blueprint as we move forward. To learn how the use of containerization as a strategy can help reduce risk and drive application-centric security, check out this video . Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... 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Security Policy Management with Professor Wool Next Generation Firewalls Next Generation Firewalls (NGFWs) with Professor Wool is a whiteboard-style series of lessons that examine the some of the challenges of and provide technical tips for managing security policies on NGFWs across in evolving enterprise networks and data centers. Lesson 1 In this lesson, Professor Wool examines next-generation firewalls and the granular capabilities they provide for improved control over applications and users. Next-Generation Firewalls: Overview of Application and User-Aware Policies Watch Lesson 2 In this lesson, Professor Wool examines the pros and cons of whitelisting and blacklisting policies and offers some recommendations on policy considerations. NGFWs – Whitelisting & Blacklisting Policy Considerations Watch Lesson 3 Next generation firewalls (NGFWs) allow you to manage security policies with much greater granularity, based on specific applications and users, which provides much greater control over the traffic you want to allow or deny. Today, NGFWs are usually deployed alongside traditional firewalls. Therefore change requests need to be written using each firewall type’s specific terminology; application names and default ports for NGFWs, and actual protocols and ports for traditional firewalls. This new lesson explains some of challenges of writing firewall rules for a mixed firewall environment, and how to address them. Managing Your Security Policy in a Mixed Next Gen and Traditional Firewall Environment Watch Lesson 4 As part of the blacklisting approach to application security, most NGFW vendors now offer their customers a subscription based service that provides periodic updates to firewall definitions and signatures for a great number of applications especially the malicious ones. In this lesson, Professor Wool discusses the pros and cons of this offering for cyber threat prevention. It also discusses the limitations of this service when home-grown applications are deployed in the enterprise, and provides a recommendation on how to solve this problem. Using Next Generation Firewalls for Cyber Threat Prevention Watch Have a Question for Professor Wool? Ask him now Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

In this webinar, our experts show how application centric automation can help secure connectivity Webinars Secure Application Connectivity with Automation In this webinar, our experts show how application centric automation can help secure connectivity. How can a high degree of application connectivity be achieved when your data is widely distributed? Efficient cloud management helps simplify today’s complex network environment, allowing you to secure application connectivity anywhere. But it can be hard to achieve sufficient visibility when your data is dispersed across numerous public clouds, private clouds, and on-premises devices. Today it is easier than ever to speed up application delivery across a hybrid cloud environment while maintaining a high level of security. In this webinar, we’ll discuss: – The basics of managing multiple workloads in the cloud – How to create a successful enterprise-level security management program – The structure of effective hybrid cloud management March 22, 2022 Asher Benbenisty Director of product marketing Relevant resources Best Practices for Incorporating Security Automation into the DevOps Lifecycle Watch Video Avoiding the Security/Agility Tradeoff with Network Security Policy Automation Keep Reading Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Explore micro-segmentation: a powerful security strategy. Discover real-world examples, top solutions, and key benefits for enhanced security and reduced risk. Micro-segmentation: Examples, solutions & top benefits Micro-segmentation: What it is, how it works, benefits Micro-segmentation means breaking down enterprise networks into multiple segments and using security policies to dictate how the data and applications in each segment will be accessed. These determinations are made by limiting traffic based on zero trust and least privilege principles. It provides a viable solution to flawed network security policies that weaken enterprise security. A micro-segmentation strategy enables organizations to reduce the size of their attack surface and make their networks safer against potential breaches. It also allows them to improve incident response, contain the impact of breaches, and maintain compliance with relevant laws and regulations. Schedule a Demo The need for micro-segmentation All organizations must protect their data centers with robust and effective firewall policies. Without these policies and associated security controls, smart and devious cybercriminals can easily hack into enterprise networks and systems. Micro-segmentation provides an effective way to install strong, clean, and easily-manageable security policies that help to create a more secure on-prem or hybrid cloud environment. This environment can keep traffic safe and block potential breaches from corrupting servers or compromising data. Moreover, creating multiple logical segments that are isolated from each other and enforced with least-privileged access keeps threat actors out of the network and also helps to contain a breach if it does happen. Schedule a Demo How micro-segmentation works Micro-segmentation can be applied in both on-prem data centers and cloud environments. It isolates network workloads which enable security teams to create security policies. These policies dictate the type of traffic passing in and out of each micro-segment. The policies are used to manage and create secure network segments and determine how these segments or zones will be accessed. They dictate how applications and workloads will access the resources they need, how they will share data within a system, and in which direction. Micro-segmentation also enables security teams to determine what kind of security or authentication measures are required for the environment. There are three main micro-segmentation approaches. Micro-segmentation works differently depending on which approach is adopted. Agent-based/host-based micro-segmentation Agent-based micro-segmentation utilizes a software agent deployed on the workload. It doesn’t rely on static network-level rules based on network ports or IP addresses. The agent allows security teams to enforce granular isolation, better control individual hosts, and implement automated segmentation policies with human-readable labels. Agent-based micro-segmentation security solutions are infrastructure-independent so they can be deployed across both data center and cloud infrastructure. One drawback of the method is that not all workloads can have an agent installed on them. Also, attackers can exploit the trust in the network with host firewall-based micro-segmentation. Network-based micro-segmentation Network-based micro-segmentation leverages the network infrastructure to enforce security policies. The policies are configured and enforced using access control lists (ACLs) or IP constructs. There’s no need to deploy agents on workloads. A drawback of this method is that the policies can only be enforced per endpoint, so network firewalls cannot distinguish between legitimate software and malware and will therefore block or allow both. Also, the policies are static, which can cause performance issues in more dynamic (e.g., cloud) environments. Finally, the approach can be complicated to manage when more granular micro-segments and a higher number of firewall rules are created. Hypervisor-based micro-segmentation This method depends on virtualized environments and hypervisors to create overlay networks and enforce micro-segmentation. The approach does not require network hardware changes. Also, its policy constructs are easy to learn for security teams. The chief drawback of the approach is that it doesn’t support bare metal servers, container workloads, or public cloud environments. Also, it doesn’t provide host-level visibility into its software, processes, vulnerabilities, etc. Schedule a Demo Examples of micro-segmentation One common example of micro-segmentation is the separation of development and testing environments from production environments. Granularly limiting the connections between these environments prevents careless or dangerous activities, such as using sensitive/live data for testing. Other examples include: Application micro-segmentation: Restricting access to sensitive data in applications to prevent unauthorized use or malicious exfiltration User micro-segmentation: Leveraging user identity services to control access to applications and services Tier-level micro-management: Separating application components to allow only authorized users to access specific components and keep unauthorized users out Schedule a Demo Network segmentation vs. Micro-segmentation Network segmentation divides the enterprise network into multiple security zones. In traditional data center environments, network segmentation is usually accomplished using firewalls, VLANs, and access control lists (ACLs). In more modern, cloud-based environments, Virtual Private Clouds (VPCs), subnets, and Security Groups (SGs). Microsoft Azure, for example, provides numerous network segmentation options, such as subscriptions (platform-powered separation between entities), virtual networks (isolated and secure networks to run virtual machines and applications), network security groups (access control mechanisms to control traffic between resources within a virtual network), and Azure firewall (a cloud-native stateful firewall-as-a-service to filter traffic flowing between cloud resources, the Internet, and on-premise). Regardless of the environment type, the zones created with network segmentation consist of multiple devices and applications. Admins can set access controls that permit only specific traffic between zones. Micro-segmentation is a more granular form of network segmentation. It involves placing each device or application within its own logically isolated segment instead of simply breaking a network into multiple, large segments. It thus provides more granular visibility and greater control than network segmentation. Unlike network segmentation which breaks the network based on north-south traffic (traffic running between clients and servers and crossing the security perimeter), micro-segmentation focuses on east-west traffic that moves laterally across and within the network. Moreover, it usually uses software policies and software-defined networking (SDN). With SDN, all network traffic is routed through an inspection point (e.g., a next-generation firewall) that can identify an attacker’s lateral movement and block inappropriate accesses to the network and its resources. Some SDN solutions, such as Cisco Application Centric Infrastructure (ACI), can automatically assign endpoints to logical security zones called endpoint groups (EPGs). These EPGs may have a contract that is used to control traffic flow between EPGs within the ACI fabric. Schedule a Demo Network segmentation challenges and how micro-segmentation Helps Dividing a network into multiple smaller segments can improve both its security and performance. Effective network segmentation allows security teams to spot an attack and act early to mitigate its impact and prevent its spread across the network. Even so, it can be challenging to implement network segmentation. For one, dividing the network into many VLANs and subnets requires a lot of manual effort. Also, the network may need to be re-architected, which can be difficult, time-consuming, and expensive. Micro-segmentation is a better and easier approach to securing a network, especially if host-based micro-segmentation is adopted. This is because the host-based approach is infrastructure-independent, provides more granular control, and enables micro-segmentation based on human-understandable policies instead of static network-level rules. Plus, the model can be deployed across both, cloud and data center environments without “coupling” to them. In addition, it decouples security policy enforcement from the physical infrastructure, simplifying administration and allowing more granular control. Also, it does not require network re-architecting so it is less time-consuming, less complex, and more cost-effective than network segmentation. Schedule a Demo Micro-segmentation: Essential for zero trust security Micro-segmentation is increasingly used to implement zero trust security . This new security model considers all users and devices untrustworthy by default. To gain access to network resources and become “trusted”, the user or device must meet the network’s conditions, for example, undergo a virus scan or complete multi-factor authentication (MFA). The zero trust model enables organizations to move away from traditional perimeter-based network security which is inadequate for modern-day remote workers and cloud environments. And micro-segmentation supports the model by: Dividing the network into smaller zones Creating a mini-perimeter around each endpoint to secure it individually Providing enhanced network visibility and stronger access controls In sum, zero trust, and micro-segmentation work in tandem by securing workloads in dynamic environments and preventing the lateral movement of unauthorized users in the network. Schedule a Demo The top 7 benefits of micro-segmentation The need for micro-segmentation is increasing because it provides all these benefits: Effective security through enhanced endpoint protection Micro-segmentation provides effective and cost-efficient security, particularly in modern network environments that are complex, dynamic, and fast-expanding. By logically dividing the data center into distinct security segments, it enables security architects to define security controls for each segment. This then reduces the size of the attack surface and enables the organization to better resist attacks or intrusions. Protection against network-based threats Micro-segmentation protects networks against network-based threats like DDoS attacks and WiFI attacks. It also allows admins to implement robust controls to restrict the flow of traffic on detecting a threat. Protection for cloud workloads and data Micro-segmentation can secure dynamic cloud systems, workloads, and data. With granular microsegments, security teams can easily monitor cloud traffic, identify suspicious or malicious traffic, and respond quickly once they detect dangerous breaches. Protection from advanced persistent threats (APTs) Individual micro-segments contain security checkpoints that help to keep cyber threats from spreading across the network. So, even if one part of a network is compromised, attackers cannot move laterally and reach or persist in other parts of the network. Thus, micro-segmentation protects the network from APTs. Improves breach containment Even if the network is breached, security staff can contain its impact with micro-segmentation. By monitoring traffic against secure policies, they can reduce the impact of a breach as well as their response time. Support for centralized policy management Organizations can use micro-segmentation to create and enforce granular security policies and to centralize policy management across networks. Without it, they would have to manually manage policies across a large fleet of devices and resources, which is a complex and time-consuming task. In addition, they can enforce zero-trust security policies, where access is allowed based on need, which can reduce the organization’s cyber risk. Endpoint separation enables regulatory compliance Micro-segmentation using the host-based approach helps isolate separately-secured endpoints, allowing security staff to easily control the traffic in systems that are subject to regulations. Policy granularity and visibility ensure that distributed devices are always protected by unified network security and also reduce the risks of non-compliant usage. Schedule a Demo Near-effortless micro-segmentation with AlgoSec By utilizing AlgoSec’s micro-segmentation method of network security, businesses can immediately feel safer against possible hackers and potential data breaches. Our application workload security platform will secure your compute instances across any infrastructure and any cloud. It will also enable trusted access through automated, exhaustive context from various systems to automatically adapt security policies. But there are always obstacles when installing new systems on existing servers, whether it’s evolving the firewalls already in place to accept the micro-segmented data center or navigating possible network segmentation pitfalls. Our team can work with you all the way from strategy to execution to ensure these challenges are met and handled with ease so your security improves and your data is confidently protected. We will make sure that all your segmentation policies will be applied beyond the native software and hardware sensors, extending them to all supported on-premise, cloud, and SDN technologies. By using AlgoSec, you will get consistent and defense-in-depth security across your entire hybrid network. You can also maximize your current investment by leveraging existing security technologies for micro-segmentation. Plus, we will help you secure your environment in minutes rather than days or weeks. Talk to us to know more about our business-driven security management. Schedule a Demo Select a size Micro-segmentation: What it is, how it works, benefits The need for micro-segmentation How micro-segmentation works Examples of micro-segmentation Network segmentation vs. Micro-segmentation Network segmentation challenges and how micro-segmentation Helps Micro-segmentation: Essential for zero trust security The top 7 benefits of micro-segmentation Near-effortless micro-segmentation with AlgoSec Get the latest insights from the experts Use these six best practices to simplify compliance and risk mitigation with the AlgoSec platform White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure continuous compliance Solution Overview See how this customer improved compliance readiness and risk management with AlgoSec Case study Choose a better way to manage your network

The aim of this post is to provide a very high-level illustration of the DNS Tunneling method used in the SolarWinds supply chain attack.... Cloud Security DNS Tunneling In The SolarWinds Supply Chain Attack Rony Moshkovich 2 min read Rony Moshkovich Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 12/23/20 Published The aim of this post is to provide a very high-level illustration of the DNS Tunneling method used in the SolarWinds supply chain attack . An Attacker compromises SolarWinds company and trojanizes a DLL that belongs to its software. Some of the customers receive the malicious DLL as an update for the SolarWinds Orion software. “Corporation XYZ” receives the malicious and digitally signed DLL via update. SolarWinds Orion software loads the malicious DLL as a plugin. Once activated, the DLL reads a local domain name “local.corp-xyz.com” (a fictious name). The malware encrypts the local domain name and adds it to a long domain name. The long domain name is queried with a DNS server (can be tapped by a passive DNS sensor). The recursive DNS server is not authorized to resolve avsvmcloud[.]com, so it forwards the request. An attacker-controlled authoritative DNS server resolves the request with a wildcard A record. The Attacker checks the victim’s name, then adds a CNAME record for the victim’s domain name. The new CNAME record resolves the long domain name into an IP of an HTTP-based C2 server. The malicious DLL downloads and executes the 2nd stage malware (TearDrop, Cobalt Strike Beacon). A Threat Researcher accesses the passive DNS (pDNS) records. One of the long domain names from the pDNS records is decrypted back into “local.corp-xyz.com”. The Researcher deducts that the decrypted local domain name belongs to “Corporation XYZ”. Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call

Partner solution brief AlgoSec and VMware Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

The Web application and service business loves containers, but they present a security challenge. Prevasio has the skills and experience... Cloud Security Don’t Neglect Runtime Container Security Rony Moshkovich 2 min read Rony Moshkovich Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 9/21/20 Published The Web application and service business loves containers, but they present a security challenge. Prevasio has the skills and experience to meet the challenge. Its runtime scanning technology and techniques will let you avoid the serious risks of vulnerable or compromised containers. The very thing that makes Docker containers convenient — their all-in-one, self-contained structure — makes them opaque to traditional security tests. Instances come and go as needed, sometimes deleting themselves within seconds. This scalable and transient nature isn’t amenable to the usual tools. Prevasio’s approach is specifically designed to analyze and test containers safely, finding any problems before they turn into security incidents. The container supply chain Container images put together code from many sources. They include original source or binary code, application libraries,language support, and configuration data. The developer puts them all together and delivers the resulting image. A complex container has a long supply chain,and many things can go wrong. Each item in the image could carry a risk. The container developer could use buggy or outdated components, or it could use them improperly. The files it imports could be compromised. A Docker image isn’t a straightforward collection of files, like a gzip file. An image may be derived from another image. Extracting all its files and parameters is possible but not straightforward. Vulnerabilities and malicious actions We can divide container risks into two categories: vulnerabilities and malicious code. Vulnerabilities A vulnerability unintentionally introduces risk. An outsider can exploit them to steal information or inflict damage. In a container, they can result from poor-quality or outdated components. The building process for a complex image is hard to keep up to date. There are many ways for something to go wrong. Vulnerability scanners don’t generally work on container images. They can’t find all the components. It’s necessary to check an active container to get adequate insight. This is risky if it’s done in a production environment. Container vulnerabilities include configuration weaknesses as well as problems in code. An image that uses a weak password or unnecessarily exposes administrative functions is open to attacks. Malicious code Malware in a container is more dangerous than vulnerabilities. It could intrude at any point in the supply chain. The developer might receive a compromised version of a runtime library. A few unscrupulous developers put backdoors into code that they ship. Sometimes they add backdoors for testing purposes and forget to remove them from the finished product. The only way to catch malware in a container is by its behavior. Monitoring the network and checking the file system for suspicious changes will discover misbehaving code. The Prevasio solution Security tools designed for statically loaded code aren’t very helpful with containers. Prevasio has created a new approach that analyzes containers without making any assumptions about their safety. It loads them into a sandboxed environment where they can’t do any harm and analyzes them.The analysis includes the following: Scanning of components for known vulnerabilities Automated pen-test attacks Behavioral analysis of running code Traffic analysis to discover suspicious data packets Machine learning to identify malicious binaries The analysis categorizes an image as benign,vulnerable, exploitable, dangerous, or harmful. The administrator looks at agraph to identify any problems visually, without digging through logs. They can tell at a glance whether an image is reasonably safe to run, needs to be sent back for fixes, or should be discarded on the spot. If you look at competing container security solutions, you’ll find that the key is runtime technology. Static analysis, vulnerability scans, and signature checking won’t get you enough protection by themselves. Prevasio gives you the most complete and effective checking of container images, helping you to avoid threats to your data and your business. Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call