DOCSLIB.ORG

Cisco SD-WAN Security

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Cisco SD-WAN Security Cisco SD-WAN Security Kureli Sankar, Technical Marketing Manager BRKRST-2720 #CiscoLiveAPJC About Kureli Sankar BS in Electrical and Electronics Engineering 2006 – 2013 TAC Engineer CCIE Security #35505 2013 – 2018 TME 2019 – Present TME Manager Areas of expertise IOS and IOS-XE security features SD-WAN Security solutions 2018 - Distinguished Speaker Cisco Live (EUR and ANZ) # 35505 #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 3 Agenda • Introduction • Secure Infrastructure • Device Identity • Secure Control Plane • Secure Data Plane • Secure Branch • Ent Firewall App Aware • Intrusion Prevention • URL - Filtering • DNS/Web-layer Security • Advanced Malware Protection + Threat Grid • Secure Management • Demo #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 4 Introduction #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 5 SD-WAN Exposes New Security Challenges DEFENDPOLICYDIRECT ANDINTERNET AGAINST ACCESS BADACCESS GAPS DESTINATIONS EXPOSESEXPAND ATTACKINGRESS & DATA SURFACE POINTS BREACHES SaaS IaaS Outside-in threats Internet • ExposedUnauthorized ingress access points as traffic is no longer backhauled to the data • Denial of service attacks center NOCLOUD SECURITY EDGE • Ransomware Remote Corporate Inside-out threats Software BASIC/NO SECURITY BASIC/NO BASIC/NO SECURITY BASIC/NO BASIC/NO SECURITY EXISTING SECURITY EXISTING EXISTING SECURITY EXISTING SECURITY • UsersMalware and infection devices request access Users Devices WAN EDGE WAN EDGE • toCommand infrastructure & control and applications Critical InfrastructureInfrastructure • Phishing attacks Branch • Untrusted users/devices SD-WAN Fabric IOTIOT Users Mobile (guests)(guests) devices Internal threats DataData CenterCenter && Campus • TrafficUntrusted must access be encrypted and Campus • Lateralaccess mustmovement be segmented end to • Complianceend • Man-in-the-Middle #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 6 Comprehensive SD-WAN Security SIMPLIFIEDSECUREENTERPRISE INTERNAL CLOUD-GRADE CONNECTIONSSECURITY SECURITY EMBEDDED SaaS IaaSIaaS OutsideInsideFullInternal edge-out-in Internet Internet SDsecurity-WAN security stack • Mitigate external security risks SECURE CLOUD EDGE • EndUmbrella’sFirewallwith to integrated end and segmentationSecure intrusion threat Internet preventiondefense to stop breachGatewayembeddedfrom the propagation, WANprotects plus to URL cloudusers filteringenforce edgeand and Remote regulatorydevicesmalware and sandboxing compliance, protects datafor and inside -out promotesent to and network from the (and cloud Corporate • Single console to manage routing Software application) layer security SECURE WAN EDGE SECURE SECURE WAN EDGE SECURE WAN EDGE SECURE WAN EDGE SECURE WAN EDGE SECURE WAN EDGE SECURE WAN EDGE SECURE WAN EDGE • Duo’sand security Multi-Factor Authentication • Zeroverifies-trustThin, that authentication only rich trusted or users and full and Users Devices • Shortest time to threat detection Critical payloaddevices accessencryption cloud between & on-prem edge Critical poweredfull- stackby Talos router Infrastructure BranchBranch routersapps • Mitigate internal security risks with SD-WANSecure Fabric IOTIOT Users Mobile a secure SD-WAN fabric with (guests)(guests) devices SD-WAN Fabric simple or flexible routing configurations DataDataData Center CenterCenter &&& CampusCampus Campus #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 7 Cisco SD-WAN Holistic Approach Multitenant/ Rich Highly Cloud-Delivered Analytics Automated USERS Cloud IoT SD-WAN .… OnRamp Edge Computing DC DEVICES APPLICATIONS Fabric IaaS SaaS THINGS SECURE SCALABLE APP AWARE vDC #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 8 Secure Infrastructure #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 9 Cisco SD-WAN Architecture Orchestration Plane Management Plane vManage • First point of authentication • Single pane of glass for Day0, Day1 and • Distributes list of vSmarts/ Day2 operations vManage to all vEdge routers APIs • Multitenant or single-tenant • Facilitates NAT traversal 3rd Party • Centralized provisioning, vBond Automation troubleshooting and monitoring • RBAC and APIs vAnalytics Data Plane Control Plane • Physical or virtual vSmart Controllers • Dissimilates control plane information • Zero Touch Provisioning between vEdges • Distributes data plane policies • Establishes secure fabric MPLS 4G • Implements control plane policies • Implements data plane policies INET • Exports performance statistics WAN Edge Routers Cloud Data Center Campus Branch CoLo #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 10 High Level View of Ordering and On-Boarding vManage Smart Account or Virtual Account details specified on order used for Overlay Sync Smart Account Push Device List creation Smart Account Automation PnP Cloud Service vBond Device list is passed to PnP Cisco Commerce Workspace Add a vBond Controller Profile and Associate with Org-Name WAN Edge Customer Service Provider End Customer #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 11 Device Identity and Integrity #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 16 History of Malware Found on Cisco IOS Devices Incident 0 Incident 1 Incident 2 Incident 3 Incident 4 Incident 5 “SYNful Knock” Date Discovered 2011 2012 2013 2013 2014 2015 Device(s) Affected Cisco 2800 and Cisco 2800 and Cisco Cisco Cisco 1800,3800, Cisco 1841, 2811, 3800 Families 3800 Families 7600 IOS & line 7600 IOS & line 7200 IOS & 3825 cards cards ROMMON Infection Method Modifications to Modifications to Modification of in- Modification of in- Modification to Modifications to IOS IOS binary IOS binary memory IOS memory IOS both ROMMON, binary and in-memory code Remote Via crypto analysis Via crypto analysis C2 protocol C2 protocol Not Directly Yes Detectability Preventions To Be Trust Anchor Trust Anchor Strong admin Strong admin Secure Boot, Trust Strong admin Taken Technology, Secure Technology, Secure credentials & credentials & Anchor credentials, Secure Boot, & Image Boot, & Image authorization authorization Technologies + Boot, Image Signing Signing Signing Image Signing Complexity Level Low Low Medium Medium High Low #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 17 Key Trustworthy Technologies Secure Boot of Signed Images Trust Anchor module (TAm) Runtime Defenses (RTD) ▪ Prevents malicious code from booting ▪ Tamper-resistant chip with X.509 cert ▪ Protects against injection of malicious on a Cisco platform installed at manufacturing code into running software ▪ Automated integrity checks ▪ Provides unique device identity and anti- ▪ Makes it harder for attackers to exploit ▪ Monitors startup process and shuts counterfeit protections vulnerabilities in running software down if compromised ▪ Secure, non-volatile on-board storage and ▪ Runtime technologies include ASLR, ▪ Faster identification of threats RNG/crypto services BOSC, and X-Space ▪ Enables zero-touch provisioning and minimizes deployment costs Trustworthy technologies enhance the security and resilience of Cisco solutions #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 18 Secure Unique Device Identification (Secure – UDI) • Tamperproof ID for the device • Binds the hardware identity to a key pair in a cryptographically secure X.509 certificate PID during manufacturing • Connections with the device can be authenticated by the SUDI credential • IEEE 802.1AR Compliant #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 19 Image Signing: Integrity & Non Repudiation Validation Check at Customer Site Software 1 5 Image SHA-512 = Cisco’s public key stored Image is hashed to a on the router is used to unique 64 byte object decrypt digital signature SHA512 (Cisco’s PUBLIC key ) 2 (Encrypted with Cisco’s PRIVATE key) Digital signature with 3 the hash appended to Hash is encrypted final image 4 Customer downloads WWW image onto + device BRKRST-2720 © 2020© 2020 Cisco Cisco and/or and/or its itsaffiliates. affiliates. All Allrights rights reserved. reserved. Cisco Cisco Public Public 20 20 Cisco Secure Boot Software and Hardware Integrity Checks Hardware authenticity check Step 5 Step 6 Software authenticity checks Step 1 Step 2 Step 3 Step 4 FPGA Hardware CPU CPU CPU CPU CPU Anchor Microloader Bootloader OS OS OS Microloader (root of trust) Microloader Bootloader OS launched Authenticity and Trust Anchor Microloader checks Bootloader checks OS license checks module provides stored in FPGA critical services First instructions run on CPU stored in tamper-resistant hardware TAm = Trust Anchor module Secure boot checks images and verifies that software is authentic and unmodified before it is allowed to boot BRKRST-2720 © 2020© 2020 Cisco Cisco and/or and/or its itsaffiliates. affiliates. All Allrights rights reserved. reserved. Cisco Cisco Public Public 21 21 Secure Control Plane #CiscoLiveAPJC BRKRST-2720 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 30 Transport Locators (TLOCs) vSmarts advertise TLOCs to all vSmart WAN Edges*
Load more

Recommended publications
  • Personal Firewalls Are a Necessity for Solo Users
    Personal firewalls are a necessity for solo users COMPANY PRODUCT PLATFORM NOTES PRICE Aladdin Knowledge Systems Ltd. SeSafe Desktop Windows Combines antivirus with content filtering, blocking and $72 Arlington Heights, Ill. monitoring 847-808-0300 www.ealaddin.com Agnitum Inc. Outpost Firewall Pro Windows Blocks ads, sites, programs; limits access by specific times $40 Nicosia, Cyprus www.agnitum.com Computer Associates International Inc. eTrust EZ Firewall Windows Basic firewall available only by download $40/year Islandia, N.Y. 631-342-6000 my-etrust.com Deerfield Canada VisNetic Firewall Windows Stateful, packet-level firewall for workstations, mobile $101 (Canadian) St. Thomas, Ontario for Workstations users or telecommuters 519-633-3403 www.deerfieldcanada.ca Glucose Development Corp. Impasse Mac OS X Full-featured firewall with real-time logging display $10 Sunnyvale, Calif. www.glu.com Intego Corp. NetBarrier Personal Firewall Windows Full-featured firewall with cookie and ad blocking $50 Miami 512-637-0700 NetBarrier 10.1 Mac OS X Full-featured firewall $60 www.intego.com NetBarrier 2.1 Mac OS 8 and 9 Full-featured firewall $60 Internet Security Systems Inc. BlackIce Windows Consumer-oriented PC firewall $30 Atlanta 404-236-2600 RealSecure Desktop Windows Enterprise-grade firewall system for remote, mobile and wireless users Varies blackice.iss.net/ Kerio Technologies Inc. Kerio Personal Firewall Windows Bidirectional, stateful firewall with encrypted remote-management option $39 Santa Clara, Calif. 408-496-4500 www.kerio.com Lava Software Pty. Ltd. AdWare Plus Windows Antispyware blocks some advertiser monitoring but isn't $27 Falköping, Sweden intended to block surveillance utilities 46-0-515-530-14 www.lavasoft.de Network Associates Inc.
    [Show full text]
  • NAVIGATING the CYBERSECURITY STORM
    NAVIGATING the CYBERSECURITY STORM A Guide for Directors and Officers BY PAUL A. FERRILLO EDITED BY BILL BROWN published by sponsored by sponsored by 1 © 2015 by Paul A. Ferrillo. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any other information storage or retrieval system without prior written permission. To use the information contained in this book for a greater purpose or application, contact Paul A. Ferrillo via [email protected] 2 Is your company protected from the Internet of RiskSM? With CyberEdge® cyber insurance solutions you can enjoy the Business Opportunity of Things. 20 billion objects are connected to the Internet, what everyone is calling the Internet of Things. This hyperconnectivity opens the door both to the future of things, and to greater network vulnerabilities. CyberEdge end-to-end cyber risk management solutions are designed to protect your company from this new level of risk. So that you can turn the Internet of Things into the next big business opportunity. To learn more and download the free CyberEdge Mobile App, visit www.AIG.com/CyberEdge Insurance, products and services are written or provided by subsidiaries or affiliates of American International Group, Inc. Insurance and services may not be available in all jurisdictions, and coverage is subject to actual policy language. For additional information, please visit our website at www.AIG.com. ABOUT PAUL A. FERRILLO Paul Ferrillo is counsel in Weil’s Litigation Department, where he focuses on complex securities and business litigation, and internal investigations.
    [Show full text]
  • Stateful Firewalls
    05 7376 ch03 2/11/05 2:14 PM Page 55 3 Stateful Firewalls THE FOCUS OF THIS CHAPTER IS ON STATEFUL firewalls, a type of firewall that attempts to track the state of network connections when filtering packets.The stateful firewall’s capabilities are somewhat of a cross between the functions of a packet filter and the additional application-level protocol intelligence of a proxy. Because of this additional protocol knowledge, many of the problems encountered when trying to configure a packet-filtering firewall for protocols that behave in nonstandard ways (as mentioned in Chapter 2,“Packet Filtering”) are bypassed. This chapter discusses stateful filtering, stateful inspection, and deep packet inspection, as well as state when dealing with various transport and application-level protocols.We also demonstrate some practical examples of how several vendors implement state track- ing as well as go over examples of such firewalls. How a Stateful Firewall Works The stateful firewall spends most of its cycles examining packet information in Layer 4 (transport) and lower. However, it also offers more advanced inspection capabilities by targeting vital packets for Layer 7 (application) examination, such as the packet that ini- tializes a connection. If the inspected packet matches an existing firewall rule that per- mits it, the packet is passed and an entry is added to the state table. From that point forward, because the packets in that particular communication session match an existing state table entry, they are allowed access without call for further application layer inspec- tion.Those packets only need to have their Layer 3 and 4 information (IP address and TCP/UDP port number) verified against the information stored in the state table to confirm that they are indeed part of the current exchange.This method increases overall firewall performance (versus proxy-type systems, which examine all packets) because only initiating packets need to be unencapsulated the whole way to the application layer.
    [Show full text]
  • Guidelines on Firewalls and Firewall Policy
    Special Publication 800-41 Revision 1 Guidelines on Firewalls and Firewall Policy Recommendations of the National Institute of Standards and Technology Karen Scarfone Paul Hoffman NIST Special Publication 800-41 Guidelines on Firewalls and Firewall Revision 1 Policy Recommendations of the National Institute of Standards and Technology Karen Scarfone Paul Hoffman C O M P U T E R S E C U R I T Y Computer Security Division Information Technology Laboratory National Institute of Standards and Technology Gaithersburg, MD 20899-8930 September 2009 U.S. Department of Commerce Gary Locke, Secretary National Institute of Standards and Technology Patrick D. Gallagher, Deputy Director GUIDELINES ON FIREWALLS AND FIREWALL POLICY Reports on Computer Systems Technology The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) promotes the U.S. economy and public welfare by providing technical leadership for the nation’s measurement and standards infrastructure. ITL develops tests, test methods, reference data, proof of concept implementations, and technical analysis to advance the development and productive use of information technology. ITL’s responsibilities include the development of technical, physical, administrative, and management standards and guidelines for the cost-effective security and privacy of sensitive unclassified information in Federal computer systems. This Special Publication 800-series reports on ITL’s research, guidance, and outreach efforts in computer security and its collaborative activities with industry, government, and academic organizations. National Institute of Standards and Technology Special Publication 800-41 Revision 1 Natl. Inst. Stand. Technol. Spec. Publ. 800-41 rev1, 48 pages (Sep. 2009) Certain commercial entities, equipment, or materials may be identified in this document in order to describe an experimental procedure or concept adequately.
    [Show full text]
  • Firewall & Security
    SD-Edge Services Overview Firewall & Security Secure Access Service Edge (SASE) Upgrading From Traditional Firewalls Traditional perimeter-only firewalls are no longer effective due to the high reliance on cloud-based applications and the limited budgets to provide deep-threat protection at every single business site and remote worker site. Furthermore, many sites have a large guest user base, such as in retail, education, healthcare, venues, MDUs, hospitality, and public WiFi networks. In all of these scenarios, there is a mix of trusted users (employees and staff), trust devices (Internet-of-Things), partially trusted users (vendors or suppliers), and untrusted users (guests). For all these different types of users, even trusted users, Benu supports a zero-trust approach. Zero-trust security restricts users to only the parts of the network and applications that they need, thereby reducing the attack surface and minimizing access to sensitive parts of the network. Microsegmentation creates separate zones within the network to maintain separate layers of access to applications and network resources. In addition, unlike typical firewalls, Benu’s SD-Edge platform supports per-user policy enforcement which is essential in environments with a high number of untrusted or partially trusted guests. These per-user policies include network access controls, QoS and rate limiting, content filtering, and data volume limits. What Sets Benu Apart Benu’s carrier-class firewall is protecting over 24 million WLAN APs and the users behind them. Carrying over 7 Petabytes of traffic a day, Benu’s firewall software is field proven for nearly a decade of broad commercial deployment. Trusted by the largest Tier-1 carriers in the world, Benu’s SD-Edge software and firewall capabilities are currently used in a wide range of applications, from public WIFi networks to major venues, carrier broadband access networks, multi-dwelling units (MDUs), retail establishments, and hospitality.
    [Show full text]
  • Stay Ahead of the Cybercriminal Heyday
    REINFORCE NETWORK SECURITY FOR THE 2020S Stay ahead of the cybercriminal heyday As business becomes increasingly mobile, digital and cloud-based, networks become ever more vulnerable to cyberattacks. Add in the rapid rise of AI, IoT and the demands on in-house IT teams, and it’s a perfect storm of opportunity for cybercriminals. To help defend your assets against today’s fast-evolving threats, experts recommend a multi-layered approach to network security. MANGED FIREWALL The ultimate balancing act: Enabling emerging technologies. Ensuring security. EMERGING TECH SECURITY RISKS Increasing … … exposes you to new and increased risks More exposure Personal apps on Mobility BYOD and endpoints company network Cloud AI, ML Sophisticated AI’s ability to find computing and bots phishing attacks and access data Deepfakes to Demands on Security alert IoT ransomware IT security teams fatigue targets Ransomvware RaaS spreading targeting the malware faster cloud New attacks leveraging old DIY cloud security malware Human error configuring the cloud Beware of low-hanging fruit for cybercriminals ° Old, unpatched vulnerabilities ° Misconfigured cloud environments ° Existing, successful malware ° Weak access controls ° Overreliance on traditional tools ° Lack of real-time visibility ° Legacy infrastructures ° Unmonitored network traffic ° Fragile connectivity More than $3.5 billion was reported lost as the result of cyber crimes in 2019 alone. FEDERAL BUREAU OF INVESTIGATION, 2019 INTERNET CRIME REPORT Defend against bad actors with an arsenal of security measures ° 24/7/365 monitoring ° SIEM ° IPsec VPN ° Stateful firewall ° Remote worker network access ° Application control ° Web content/URL filtering ° Antivirus/antimalware ° Intrusion prevention systems ° DNS filtering ° Cloud sandbox ° Botnet protection ° Content disarm and reconstruction ° Antispam ° Vulnerability management Much of the success of cyber adversaries has been due to the ability to take advantage of the expanding attack surface and the resulting security gaps due to digital transformation.
    [Show full text]
  • 8 Fit Points to Help You Find the Right-Sized SD-WAN INTRODUCTION
    8 Fit Points to Help You Find the Right-Sized SD-WAN INTRODUCTION What would it mean for you to have a Software-Defined Wide Area Network (SD-WAN) tailored to fit your business? Would it mean you could launch your digital transformation initiatives and no longer be limited by your legacy MPLS circuits? Or, that you could be confident your network is secure in spite of having thousands of employees working from home? Or, that you could deploy touchless Payment Card Industry (PCI) compliant payment options easily across all your locations? For these and many other reasons, SD-WAN is not a simple off-the-shelf purchase. It requires a custom fit to truly meet your business needs and enhance operations and security; much like a custom-made suit will fit better than one that’s been pulled off the rack. Here, we define “8 Fit Points” to help you assess your current situation and determine how to get an SD-WAN solution tailored to your business. 8 FIT POINTS 2 Fit Point #1: Security Theoretically, everyone understands the need for network security. But let’s look at some hard data to better quantify the issues of risk and need, and to underscore its importance. According to predictions by Cybersecurity Ventures, cybercrime damages will cost $6 trillion annually across the globe by 2021. That’s double the figure from 2015, which came in at roughly $3 trillion. Why such a dramatic increase? Because there has been exponential growth in the types and numbers of devices that connect to networks over the past 5 years, as mobile use has been unleashed.
    [Show full text]
  • An Aryon Primer on the Need for a Next Generation Firewall
    Aryon Pty Ltd A Primer on the need for Next Generation Firewalls Cost and lost business associated with data breaches and lawsuits continue to increase every year. As long as valuable information exists, criminals will attempt to steal it using a wealth of traditional, as well as ever more sophisticated attacks. To stay ahead of new threats, businesses need a security platform that can provide protection against both known and new threats, while scaling to accommodate business growth and new services. Introduction The term ‘next-generation firewall’ (NGFW) became popular in 2009 when the research firm Gartner published a report titled “Defining the Next Generation Firewall”. The report refers to a firewall that offers specific features to address changes in both the way business processes use IT 1 and the ways attacks try to compromise business systems. Unfortunately, some Next Generation Firewalls not only fail to provide these advanced next- generation features to guard against new attacks; they also fail to provide a mature platform of core network protection features to block existing attacks. This is why industry analysts still caution that NGFW features are most effective when used in conjunction with other layers of security controls. In order to block all threats, Next Generation Firewalls must also include traditional packet filtering, network address translation, stateful protocol inspection, and virtual private network (VPN) capabilities.1 Next Generation Firewalls must be built on a solid, field-proven base of traditional or core network protection features before attempting to add next-generation security features such as application control and deep packet inspection.
    [Show full text]
  • Firewalls, IDS and IPS MIS5214 Midterm Study Support Materials Agenda
    Firewalls, IDS and IPS MIS5214 Midterm Study Support Materials Agenda • Firewalls • Intrusion Detection Systems • Intrusion Prevention Systems Firewalls are used to Implement Network Security Policy • Firewalls support and enforce an organization’s network security policy • High-level directives on acceptable an unacceptable actions to protect critical assets • Firewall security policy: • What services can be accessed • What IP addresses and ranges are restricted • What ports can be accessed Firewalls are security architecture “choke points” in an IT network • All communication should flow through and be inspected and restricted by firewalls • Are used to restrict access to one network from another • Restrict access from the internet to access corporate networks • Restrict access between internal network segments • Restrict access • Between origin and destination • Based on determination of acceptable traffic type(s) Firewalls are used to Implement Network Security Policy • Firewalls support and enforce an organization’s network security policy • High-level directives on acceptable and unacceptable actions to protect critical assets • Firewall security policy identifies: • What services can be accessed • What IP addresses and ranges are restricted • What ports can be accessed Firewall Technology • May be implemented as a • Software product running on a server • Specialized hardware appliance • Monitors data packets coming into and out of the network it is protecting • Packets are filtered by: • Source and destination addresses and ports
    [Show full text]
  • The Practitioner's Guide to Deploying, Optimizing and Managing Next-Generation Firewalls
    THE PRACTITIONER’S GUIDE TO DEPLOYING, OPTIMIZING AND MANAGING NEXT-GENERATION FIREWALLS An AlgoSec Whitepaper MANAGE SECURITY AT THE SPEED OF BUSINESS AlgoSec Whitepaper The Firewall Evolves Ever since “Stateful Inspection” was introduced in the late 1990’s, firewall administrators and information security officers have been defining security policies based primarily on a connection’s source IP address, destination IP address, and service. However, today we live in an application-centric business environment (“there’s an app for that”) and applications are intertwined with our professional and personal lives. But along with their associated benefits come risks. Increased use of applications, mobility, virtualization, and network security consolidation as well as the evolution of sophisticated threats has driven requirements for new features and capabilities all built into one firewall. Enter Next Generation Firewalls (NGFWs). While NGFWs provide newfound levels of policy granularity and controls - Application Control, IPS, antimalware, email security and more - they also introduce more complexity that can cause more harm than good. Without proper sizing of capabilities for the environment, firewall performance can drop off significantly. And without careful design and maintenance, a poorly optimized NGFW policy could take what was a single rule allowing http, and become a policy that includes 10,000 new rules, one per application – creating more opportunity for error and risk. This paper will highlight tips to effectively implement next-generation firewalls and optimize policies so that you can enjoy the clear benefits without falling into overly complex, unmanageable and risky policy traps. Next-Generation Firewalls Exposed – Improved Security at a Cost if Not Managed Properly In a recent survey, 68% of respondents reported to have adopted NGFWs to improve protection from cyber-attacks.
    [Show full text]
  • Handling Stateful Firewall Anomalies
    Handling Stateful Firewall Anomalies Frédéric Cuppens1, Nora Cuppens-Boulahia1,2, Joaquin Garcia-Alfaro1, Tarik Moataz1, and Xavier Rimasson1 1 Institut Télécom, Télécom Bretagne, CS 17607, 35576 Cesson-Sévigné, France [email protected] 2 Swid Web Performance Service Rennes, France Abstract. A security policy consists of a set of rules designed to protect an information system. To ensure this protection, the rules must be deployed on security components in a consistent and non-redundant manner. Unfortunately, an empirical approach is often adopted by network administrators, to the detriment of theoretical validation. While the literature on the analysis of configurations of first generation (stateless) firewalls is now rich, this is not the case for second and third generation firewalls, also known as stateful firewalls. In this paper, we address this limitation, and provide solutions to analyze and handle stateful firewall anomalies and misconfiguration. 1 Introduction Firewalls aim at optimizing the degree of security deployed over an information system. Their configuration is, however, very complex and error-prone. It is based on the distribution of sev- eral packages of security rules that define properties such as acceptance and rejection of traffic. The assembly of all these properties must be consistent, addressing always the same decisions under equivalent conditions, and avoiding conflicts or redundancies. Otherwise, the existence of anomalies and misconfiguration will lead to weak security architectures, potentially easy to be evaded by unauthorized parties. Approaches based on formal refinement techniques, e.g., using abstract machines grounded on the use of set theory and first order logic, ensures, by con- struction, cohesion, completeness and optimal deployment [1].
    [Show full text]
  • Trend Micro Healthcare Compliance Solutions
    Trend Micro Healthcare Compliance Solutions How Trend Micro’s innovative security solutions help healthcare organizations address risk and compliance challenges. Deep Security “Advanced protection for systems in the dynamic datacenter—from virtual desktops to physical, virtual or cloud servers.” Overview of Features Deep Security is a platform for server security, combining a bi-directional stateful firewall with intrusion detection and prevention, web application protection, integrity monitoring, log inspection, and agentless anti-malware. Collectively these security modules within Deep Security provide a comprehensive solution set for data centers and hosting environments. Agentless Anti-malware The agentless anti-malware module, developed in conjunction with VMware, allows for agentless anti- malware protection delivered as a virtual appliance. The virtual appliance hooks into the other virtual machines running, offering the same protection expected from a traditional agent but with a lower cost of ownership and increased performance. From a resource perspective, agentless anti-malware requires fewer CPU cycles and less RAM than traditional agents. Because an agent is not being installed on every piece of hardware, it is also easier to manage and maintain, offering both real and opportunity cost savings. Agentless anti-malware also offers enhanced security over traditional agents. By isolating the anti- malware from where the malware resides—the virtual machines which are the targets—malware is limited in terms of what it can do to modify or prevent the anti-malware from doing its job. The segregation in virtual machines prevents root access for instance which may block anti-malware in more traditional implementations. Generally speaking, the functionality of this type of anti-malware is similar to that of anti-malware deployed as an agent.
    [Show full text]