Zscaler, Inc.

Patrick Foxhoven

John A Chanak

William Fehring

Manoj Apte

Subramanian Srinivasan

Denzil Wessels

Sudhindra Pundaleeka Herle

Kunal Pankaj Shah

Nathan Howe

Dhawal Kumar Sharma

Kenneth B Urquhart

Sridhar Kartik Kumar Chatnalli Deshpande

Amit Sinha

Purvi J Desai

Srikanth Devarajan

Vikas Mahajan

Rohit Goyal

Bill Fehring

The present disclosure relates to systems and methods for cloud-based 5G security network architectures intelligent steering, workload isolation, identity, and secure edge steering. Specifically, various approaches are described to integrate cloud-based security services into Multiaccess Edge Compute servers (MECs). That is, existing cloud-based security services are in line between a UE and the Internet. The present disclosure includes integrating the cloud-based security services and associated cloud-based system within service provider's MECs. In this manner, a cloud-based security service can be integrated with a service provider's 5G network or a 5G network privately operated by the customer. For example, nodes in a cloud-based system can be collocated within a service provider's network, to provide security functions to 5G users or connected by peering from the cloud-based security service into the 5G service provider's regional communications centers.

5G UDM to IDP federation and identity function

Secure edge workload steering and access

Intelligent steering in 5G

The present disclosure includes, responsive to a request from a user device, performing a security check based on policy associated with the user device, wherein the policy includes setting related to content filtering and security; responsive to the security check, performing one of: directly allowing the request to the Internet based on the security check determining the request is allowed by the settings; directly blocking the request based on the security check determining the request is disallowed by the settings; and forwarding the request to a system for inline inspection based on the security check determining the request includes suspicious content, wherein responsive to the inline inspection, the request is one of allowed and blocked.

Cloud based security using DNS

Systems and methods include intercepting traffic on the user device; forwarding the traffic to a cloud-based system for security processing therein; and, responsive to unavailability of the cloud-based system preventing the forwarding, performing local security processing of the traffic at the user device including determining whether the traffic is allowed based on a cache at the user device, forwarding the traffic separate from the cloud-based system when it is allowed, and blocking the traffic when it is not allowed.

Disaster recovery for a cloud-based security service

Systems and methods include, responsive to a request from a user for one or more Business-to-Business (B2B) applications, redirecting the request, by a cloud-based system, to an identity provider to authorize the user; displaying the one or more B2B applications that the user is authorized to access; responsive to a selection of a B2B application of the one or more B2B applications, creating a first tunnel from the B2B application to the cloud-based system; and stitching the first tunnel between the B2B application and the cloud-based system with a second tunnel between the user and the cloud-based system. The systems and methods further include, responsive to the user being unauthorized for any of the one or more B2B applications, omitting the one or more B2B applications from the displaying, such that the one or more B2B applications are invisible to the user.

Providing users secure access to business-to-business (B2B) applications

Systems and methods, in a lightweight connector including a processor communicatively coupled to a network interface, include connecting to a cloud-based system, via the network interface; connecting to one or more of a file share and an application, via the network interface; and providing access to a user device to the one or more of the file share and the application via a stitched connection between the network interface and the user device through the cloud-based system. The systems and methods can further include receiving a query for discovery; and responding to the query based on the one or more of the file share and the application connected thereto.

Secure application access systems and methods via a lightweight connector and a cloud-based system

Systems and methods include receiving a request, in a cloud system from a user device, to access an application, wherein the application is in one of a public cloud, a private cloud, and an enterprise network, and wherein the user device is remote over the Internet; determining if the user device is permitted to access the application; if the user device is not permitted to access the application, notifying the user device the application does not exist; and if the user device is permitted to access the application, stitching together connections between the cloud system, the application, and the user device to provide access to the application.

Cloud-based virtual private access systems and methods for application access

A Dynamic Name Server (DNS) surrogation method, a DNS system, and a DNS server provide DNS surrogation which is the idea that if a user device sends a DNS resolution request to a given DNS server that server does not need to actually perform the recursion itself. A policy can be defined telling the server that first received the request to take other factors into account and 'relay' or 'surrogate' that request to another node. This additional node is called a &#x201c;surrogate&#x201d; and it actually performs the recursion therefore allowing the resolving party to perform proper localization, optimization, or any other form of differentiated resolution. This surrogation also distributes the job of actually performing resolution, which adds scalability to the DNS server or service itself. A network of &#x201c;surrogate&#x201d; resolvers is possible as well as the concept of every client needing DNS resolution can also become a surrogate.

Distributed cloud-based dynamic name server surrogation systems and methods

A Content Delivery Network (CDN) includes one or more cache servers communicatively coupled to end users for providing content thereto; and one or more origin servers communicatively coupled to the one or more cache servers through a plurality of nodes, the one or more cache servers are configured to receive traffic related to the content from the one or more origin servers through the one or more nodes of the plurality of nodes, based on one or more of a push technique and a pull technique, and the plurality of nodes are configured to monitor the traffic between the one or more origin servers and the one or more cache servers in an inline manner, process the traffic for malware and data leakage based on policy, and block the traffic responsive to detection of one or more of the malware and the data leakage, prior to traffic entering the CDN.

Content delivery network protection from malware and data leakage

A cloud-based security method using Domain Name System (DNS) includes receiving a request from a user device at a DNS server; performing a security check on the request based on a policy look up associated with the user device; responsive to the policy look up, performing a DNS security check on the request; and responsive to the DNS security check, performing one of allowing the request to the Internet; blocking the request based on the policy; and providing the request to inline inspection based on the policy, wherein the request is one of allowed to the Internet or blocked based on the inline inspection.

Virtual private access systems and methods implemented in a clientless manner on a user device are disclosed. The systems and methods include receiving a request to access resources from a Web browser on the user device at an exporter in a cloud system. The resources are located in one of a public cloud and an enterprise network and the user device is remote therefrom on the Internet. The systems and methods also include performing a series of connections between the exporter and i) the Web browser and ii) centralized components to authenticate a user of the user device for the resources. The systems and methods further include, subsequent to authentication, exchanging data between the Web browser and the resources through the exporter. The exporter has a first secure tunnel to the Web browser and a second secure tunnel to the resources.

Clientless connection setup for cloud-based virtual private access systems and methods

A virtual private access method implemented by a cloud system, includes receiving a request to access resources from a user device, wherein the resources are located in one of a public cloud and an enterprise network and the user device is remote therefrom on the Internet; forwarding the request to a central authority for a policy look up and for a determination of connection information to make an associated secure connection through the cloud system to the resources; receiving the connection information from the central authority responsive to an authorized policy look up; and creating secure tunnels between the user device and the resources based on the connection information.

Cloud-based virtual private access systems and methods

Content Delivery Network (CDN) protection systems and methods, performed by a cloud node in a distributed security system include receiving traffic between one or more origin servers and the CDN; monitoring the traffic based on policy; detecting one or more of malware and data leakage in the traffic based on the policy; and blocking the traffic responsive to the detecting the one or more of the malware and the data leakage in the traffic, prior to the traffic entering the CDN.

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San Jose, CA, United States of America

Patrick Foxhoven