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642-544 Implementing Cisco Security Monitoring, Analysis and Response

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642-544 exam Dumps Source : Implementing Cisco Security Monitoring, Analysis and Response

Test Code : 642-544
Test Name : Implementing Cisco Security Monitoring, Analysis and Response
Vendor Name : Cisco
Q&A : 49 Real Questions

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related Reads

Cisco goes after industrial IoT | killexams.com Real Questions and Pass4sure dumps

Cisco has rolled out a new household of switches, application, developer tools and blueprints to meld IoT and industrial networking with intent-based networking and basic IT safety, monitoring and application-construction help.

To take on the daunting task the business unveiled a new household of industrial-networking Catalyst switches, IoT developer tools and aid for Cisco’s DevNet developer software, and it validated IoT network design blueprints purchasers can work with to construct strong IoT environments.  

“we have over 40,000 customers with IoT technology in all manner of purposes – from related roadways and automobiles to healthcare – and a lot of face the equal challenges in deploying IoT – challenge complexity, scale, and end-to-conclusion safety,” Vikas Butaney, vice president of product management for IoT at Cisco spoke of. “we're bringing to those purchasers a manageable, comfortable network which will allow them to installation IoT at a massive scale.”

For the core of this network environment Cisco will bring a household of recent ruggedized industrial networking methods. peculiarly the Cisco Catalyst IE3x00 series of Gigabit Ethernet switches and IR1101 built-in functions Routers that Cisco says have been goal-constructed for IoT environments. The IR1101 are modular so valued clientele can upgrade to new features similar to 5G devoid of ripping and changing.

All IE3x00 and IR1101 methods run IOS XE, the working equipment used in Cisco’s latest campus, department and WAN networking instruments. the new systems will also be managed by using Cisco’s DNA middle, and Cisco IoT box community Director, letting shoppers fuse their IoT and industrial-community handle with their enterprise IT world.

DNA middle is Cisco’s central management device for commercial enterprise networks, that includes automation capabilities, assurance environment, textile provisioning and coverage-based mostly segmentation. it is additionally on the core of the enterprise’s Intent based mostly Networking initiative offering purchasers the means to instantly implement network and coverage alterations on the fly and make sure records delivery. The IoT box network Director is utility that manages multiservice networks of Cisco industrial, connected grid routers, and endpoints.

Taking DNA center’s facets into an industrial IoT-primarily based network is an important circulate for purchasers, analysts observed.

“It leverages Cisco’s massive installed base and bridges IT and OT [operational technology traditionally associated with manufacturing and industrial environments] with a standard framework,” said Will Townsend a senior analyst with Morr Insights & approach.   

the commercial IoT rollout has enabled the community area to extend its herbal boundaries into locations that natural IT and community guide hasn't had to have lots of complexity and innovation, cited Vernon Turner, important and Chief Strategist at Causeway Connections.

“Now that there's a lot of software building and deployment being performed on the 'extended business,’ it is simply natural that a corporation such as Cisco follows with its capabilities in utility, Turner mentioned. "In specific, the means to drive intent-based mostly community performance is crucial for industrial-primarily based workloads that now demand natural IT-primarily based attributes such as safety, scale and flexibility.”

probably the most hindrances for success is the customer experience of conclusion-to-conclusion integration and delivery of features. “for instance, there cannot be natural breaks between sensor-based mostly facts being generated via a store-floor robotic on a construction line and the enterprise returned-office programs for ingredients and fabric on account of either diverse networks and distinctive statistics programs – they both should be delivered in a seamless manner,” Turner referred to.

moreover the hardware, Cisco expanded its DevNet developers atmosphere to encompass an IoT Developer core where consumers can discover all manner of IoT and industrial developer equipment and aid elements. 

in addition Cisco rolled out three new Cisco Validated Designs for IoT architectures that customers can use to quickly-song IoT deployments. The blueprints are directed at manufacturing, industrial automation and utility designs and outline ordinary use cases and protection most desirable practices, Cisco said. The enterprise additionally referred to it would extend its practicing components as a part of its IoT partner application.

“Industrial apps are a different blend unto their own, and it's exceptional to see that Cisco is bringing its Developer neighborhood to the fringe of the network,” Turner stated.  “Having extra apps which are written and supported in a network-based ambiance can best be first rate news to each IT and operations management.”

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BMTC deploys Cisco protection options | killexams.com Real Questions and Pass4sure dumps

Bahri & Mazroei buying and selling business (BMTC), one of the UAE’s leading providers of options for building and infrastructure construction, has deployed a finished suite of safety solutions from Cisco as part of its ‘sensible’ initiatives focus.

system integrator Emtech helped BMTC implement Cisco next technology Firewall, which integrated ASA 5545 – X with FirePower services, Cisco FireSight management centre 750, Cisco URL filtering carrier and Cisco advanced Malware insurance policy, it brought up.

speaking about the implementation, Madhusuthan, BMTC’s IT manager stated: "As part of our smart initiatives focal point, we were trying to find a new safety solution that not best met our IT and compliance coverage necessities but additionally acted as a business enabler as an alternative of just monitoring, controlling and restricting our users’ on-line activities."

"Our methods integration associate Emtech studied our IT infrastructure and requirements and got here up with their suggestions, which included a set of options from Cisco," he stated.

With this implementation, BMTC becomes some of the first companies in the UAE to deploy Cisco ASA with FirePower capabilities on account that the solution changed into launched within the UAE remaining September.

BMTC’s managing director Esam Al Mazroei spoke of: "day by day, UAE establishments like ours are faced with new threats that are becoming further and further resourceful within the approaches they infiltrate and attack our ambiance. This deployment from Cisco is enabling us to take a a whole lot greater mature method to our superior possibility insurance plan efforts."

“we're confident Cisco protection solutions will support protect and look after our IT and community infrastructure against advanced threats while also cutting back complexity and fees. The solution is also helping us with positive utilisation of web bandwidth and conclusion-user looking capabilities with subsequent-technology elements and protection,” talked about Madhusuthan.

Emtech had beeen tasked with learning BMTC’s IT infrastructure and requirements to establish the bottlenecks.

“Our function in this mission turned into to determine the pain features of IT security through realizing what is happening on the enterprise’s network degree, bringing superior visibility in terms of insurance policy and recommending the optimum answer which would lead to positive data centre protection and enterprise productivity," explained Vijayan k Raman, the managing director of Emtech.

"in response to the complete study we undertook, we recognized some key issue areas on malware, utility visibility and handle, and consumer visibility and control. based on these complications, we matched the equal with Cisco ASA with FirePower functions," he talked about.

anyway successfully implementing the Cisco safety answer, Emtech additionally knowledgeable the BMTC’s IT crew on its administration and has been featuring the consumer continual provider support, he delivered.

On the deployment, Rabih Dabboussi, the Cisco general manager (UAE), spoke of: "As a number one security dealer in the UAE, Cisco is focused on establishing integrated safety solutions that help our valued clientele be proactive and align the right americans, approaches, and expertise."

"We applaud BMTC for taking the lead in enforcing dynamic controls to control the tempo of exchange of their IT and community atmosphere and tackle protection incidents with Cisco’s suite of security options," he added.-TradeArabia information carrier


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Implementing Cisco Security Monitoring, Analysis and Response

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Ingress firewall rules for the Cisco Security Monitoring, Analysis, and Response System | killexams.com real questions and Pass4sure dumps

The Cisco Security Monitoring, Analysis, and Response System (CS-MARS) is a topology-aware SIM product. Because it holds sensitive information, it's important for VARs to configure it to establish authentication, information and rediscovery protocols. This tip covers how to establish ingress firewall rules for CS-MARS.

To simplify the work involved, you should define some network object groups on your firewall. If you're not familiar with this term, think of object groups as variables that you can use while configuring the firewall to make life easier. Rather than referring to a large list of IP addresses or TCP/UDP ports, you can simply refer to a name instead. The following examples use an object group called CORP_NET, which consists of all IP addresses used on your organization's network.

Ingress traffic refers to traffic that is inbound to a firewall (toward CS-MARS) from a less trusted network. Figure 4-1 shows both ingress traffic and egress traffic, or traffic that leaves CS-MARS to go toward the less trusted network.

Figure 4-1 Ingress and Egress Traffic

The following ingress rules are a good starting point for most companies:

Step 1 Permit syslog and SNMP trap traffic (UDP 162 and 514) from security operations (SecOps). Step 2 Permit NetFlow traffic (UDP 2049) from SecOps. Step 3 Permit HTTPS (TCP 443) from SecOps if a large number of people will be accessing the web console of MARS to run ad hoc reports. Otherwise, permit HTTPS to a restricted range of addresses. Step 4 Permit SSH (TCP 22) to a very restricted set of addresses. If the security management network has its own VPN gateway, which might be a function of the firewall, you might want to require administrators to establish a VPN connection before permitting SSH. Step 5 Permit HTTP (TCP 80) from any monitored web servers running iPlanet or Apache. If you're using NetCache appliances, permit HTTP from it as well. Step 6 If your MARS deployment consists of multiple MARS LCs that communicate to a centralized MARS GC, permit required management traffic between those systems (TCP 443 and 8444). Step 7 Deny all other traffic.

Continue reading to learn about egress firewall rules for the Cisco Security Monitoring, Analysis, and Response System (CS-MARS).

Reproduced from Chapter four of the book Security Monitoring with Cisco Security MARS by Gary Halleen and Greg Kellogg. Copyright 2007, Cisco Systems, Inc. Reproduced by permission of Pearson Education, Inc., 800 East 96th Street, Indianapolis, IN 46240. Written permission from Pearson Education, Inc. is required for all other uses.


Cybersecurity Communities: Defending IT Collaboratively (Contributed) | killexams.com real questions and Pass4sure dumps

Hiring the best and brightest cybersecurity talent will always be difficult for state and local governments. They have to compete with private-sector firms that can offer significantly greater compensation. Many government agencies also must meet rigorous certification standards for new hires, including exceptional requirements that make them eligible for in-depth background investigations. 

Making matters worse, there are not enough people in the cybertalent pipeline. Cybersecurity Ventures, a research firm, estimates there will be a global shortage of 3.5 million cybersecurity workers by 2021. Moreover, the Cisco 2018 Annual Cybersecurity Report found that these staff shortages contribute to organizations failing to design and build secure information systems as well as maintain basic security controls.

Some states are tackling the problem through training programs and have built and staffed their own cybersecurity centers. Others have offered grants to establish cybersecurity courses to train new talent. The SANS Institute, an information security and cybersecurity research and training company, has started the CyberStart program, a unique and innovative suite of tools and games designed to introduce children and young adults to the field of cybersecurity by completing various challenges. At a more strategic level, many state and local governments are considering a collaborative, “community” approach to solving their cybersecurity challenges.

Collaboration: Strength in Numbers

Security communities are groups of cybersecurity professionals who concluded that working together to solve our country’s security challenges better serves their organization and the broader community when compared to working in a silo alone. In general, the more people there are working on a problem, collaboratively, with a broader data set and context, the better the outcome for everyone.

From threat detection to incident response, the tactics that bad actors use — and methods to thwart and resolve them — are constantly evolving. Drawing from the lessons learned and best practices of more than just a single organization enables security professionals to be more efficient with their time, reach maturity more quickly and to identify and leverage innovation earlier.

Efforts are underway. The state of Ohio, under the direction of former Gov. John Kasich, has formed a committee to foster collaborative partnerships to strengthen cyberinfrastructure and resources. InfraGard is a partnership between the FBI and members of the private sector. The program provides a vehicle for public-private collaboration that expedites the timely exchange of information and promotes mutual learning opportunities relevant to the protection of critical infrastructure. While one of the most difficult parts of communities is getting people to join, participate and ultimately share, the government sector provides the opportunity for top-down mandates around collaboration. 

MITRE’s Knowledge Base of Cybertactics

A collaborative community project that has had a huge impact on the practical side of cybersecurity is the MITRE ATT&CK™ framework. Founded in 1958, MITRE is a nonprofit organization that manages federally funded research. The organization works on projects for a variety of agencies, including the IRS, Department of Defense (DOD), Federal Aviation Administration (FAA) and National Institute of Standards and Technology (NIST). 

Based on real-world observations, the ATT&CK (adversarial tactics and techniques and common knowledge) framework is a globally accessible knowledge base of adversary tactics and techniques. It serves as a foundation for developing specific threat models and methodologies in the private sector, security vendor community and varying government organizations. 

The ATT&CK knowledge base has helped several projects, mappings and supplemental resources, allowing the supporting communities to continue growing. The platform and data sources sections are incredibly valuable because they tell practitioners which systems they need to be monitoring and what they need to be collecting from them to mitigate and/or detect abuse of the technique. The use of knowledge provided by the framework can almost immediately increase the maturity of a government security organization.

By classifying attacks into discreet tactics, it’s easier for researchers to see common patterns, determine the author of different campaigns and track how a threat has evolved over the years as the author adds new features and attack methods. The framework recognizes that real-world threats are constantly advancing, and maps events to give analysts the context needed to identify advanced persistent threats (APT). The term APT is commonly thrown around, but for the federal, state, and local government as well as organizations supporting them, APT is a genuine concern.

Simplifying the Cyberdefense Process

With the impending security skills shortage, government organizations will have to find new ways to make better use of the talent and resources they currently have. Security operations centers (SOCs) are overwhelmed by thousands of daily alerts, and manually responding to each one — legitimate or not — is a time-consuming and arduous task. 

By combining comprehensive data gathering; standardization; workflow analysis and analytics; and security orchestration, automation and response (SOAR), technology companies are working to provide organizations the ability to easily implement sophisticated defense-in-depth capabilities based on internal and external data sources like the ATT&CK framework. As a result, government agencies are beginning to adopt SOAR, seeking to quickly and effectively resolve a significant portion of the thousands of alerts they receive each day while also ensuring that processes and standards are enforced through automation. This will free up their security experts to spend more time on complex investigations, creating innovative processes, and proactive threat hunting.

From optimal productivity and performance to the ability to respond to incidents faster, collaboration delivers invaluable benefits to security operations in the public sector. Because the private sector controls the vast majority of the world’s critical infrastructure systems, government security will depend on effective, global collaboration with industry security professionals using resources like the MITRE ATT&CK framework. 


Securing the Cisco Security Monitoring, Analysis, and Response System | killexams.com real questions and Pass4sure dumps

This chapter is from the book 

As you can see, depending on your environment and the location of hosts, a complex set of rules can be required on your firewall. Don't let the complexity prevent you from properly configuring the firewall, however. A little work initially can mean a better, more secure monitoring solution.

The following sections discuss issues regarding firewall protection for MARS and network-based IPSs and IDSs. The suggestions given are a good place to begin, but they by no means work in every network. For example, the TCP and UDP ports described in the preceding sections are only defaults. You can configure most of these services, which are common in many networks, to use other ports. Check Point firewalls, for example, are commonly configured to use different ports than the defaults of TCP ports 18184, 18190, and 18210.

Ingress Firewall Rules

To simplify the work involved, you should define some network object groups on your firewall. If you're not familiar with this term, think of object groups as variables that you can use while configuring the firewall to make life easier. Rather than referring to a large list of IP addresses or TCP/UDP ports, you can simply refer to a name instead. The following examples use an object group called CORP_NET, which consists of all IP addresses used on your organization's network.

Ingress traffic refers to traffic that is inbound to a firewall (toward CS-MARS) from a less trusted network. Figure 4-1 shows both ingress traffic and egress traffic, or traffic that leaves CS-MARS to go toward the less trusted network.

The following ingress rules are a good starting point for most companies:

  • Step 1 Permit syslog and SNMP trap traffic (UDP 162 and 514) from security operations (SecOps).
  • Step 2 Permit NetFlow traffic (UDP 2049) from SecOps.
  • Step 3 Permit HTTPS (TCP 443) from SecOps if a large number of people will be accessing the web console of MARS to run ad hoc reports. Otherwise, permit HTTPS to a restricted range of addresses.
  • Step 4 Permit SSH (TCP 22) to a very restricted set of addresses. If the security management network has its own VPN gateway, which might be a function of the firewall, you might want to require administrators to establish a VPN connection before permitting SSH.
  • Step 5 Permit HTTP (TCP 80) from any monitored web servers running iPlanet or Apache. If you're using NetCache appliances, permit HTTP from it as well.
  • Step 6 If your MARS deployment consists of multiple MARS LCs that communicate to a centralized MARS GC, permit required management traffic between those systems (TCP 443 and 8444).
  • Step 7 Deny all other traffic.
  • Egress Firewall Rules

    Egress firewall rules refer to filters that restrict traffic from the protected network to less trusted networks. Ideal security would restrict outbound traffic to only those ports that are necessary for proper functioning of the MARS appliance. However, in real life, this might be unmanageable. You need to determine the proper balance between security and manageability.

    For example, a strict default egress policy might make sense for your company's public-facing web server. Hopefully, connectivity from the Internet to your web server (ingress rule) is permitted only on either TCP 80 or 443, depending on whether your web server uses encrypted HTTP. The egress policy should deny all traffic that originates from the web server to hosts on the Internet. In other words, someone should never be allowed to browse the Internet from your web server, to download files from the web server, or to have other communications from the web server to the Internet. By applying a proper egress rule on the firewall that denies it, an attacker is also denied that same communications path. In most instances where a web server, or any other server, is compromised by a hacker, the hacker's next steps include copying files to the web server. This is either to deface websites, install root kits, or retrieve the software needed to further hack into the network. Strict egress filters raise the difficulty level, often to a level that exceeds the capabilities of the hacker.

    Depending on your environment and which MARS features you're using, strict egress filters might be unmanageable. However, you should evaluate them to see whether they are workable in your environment.

    The following list of egress filters serves as a good starter set for most networks:

  • Step 1 Permit traffic required for name resolution to CORP_NET—for example, Domain Name System (DNS) and Server Message Block (SMB) for Windows hosts (TCP and UDP 53, TCP 137 and 445) to CORP_NET.
  • Step 2 Permit Network Time Protocol (NTP) to specified NTP servers, either on your network or internetwork.
  • Step 3 Permit device discovery traffic on CORP_NET for routers and switches—for example, Telnet (TCP 23), SSH (TCP 22), and SNMP (UDP 161).
  • Step 4 Permit HTTPS to CORP_NET to allow MARS to discover Cisco IDS/IPS sensors as well as to allow event retrieval from Cisco IDSs/IPSs and Cisco routers running IOS IPS, and to allow communications between MARS LCs and GCs. If possible, restrict this range to a subset of CORP_NET.
  • Step 5 Permit FTP (TCP 21) to a centralized FTP server that contains configuration files of routers and switches, if you want to take advantage of this feature.
  • Step 6 Permit Simple Mail Transfer Protocol (SMTP) (TCP 25) to allow MARS to e-mail reports and alerts to your SMTP gateway.
  • Step 7 Permit NFS (UDP 2049) if your MARS archive server resides on a different network (not recommended).
  • Step 8 Permit TCP 8444 to allow communications between MARS LCs and GCs, if they reside in different locations.
  • Step 9 Deny all other traffic.
  • If you want to take advantage of the MARS internal vulnerability assessment capabilities, the preceding list of rules will not work. Instead, use the following egress filter list:

  • Step 1 Permit all TCP and UDP traffic sourced from CS-MARS or a third-party vulnerability scanner.
  • Step 2 Permit NTP traffic to defined NTP servers, if they do not exist locally on SecOps.
  • Step 3 Deny all other traffic.
  • In day-to-day use of MARS, when you choose to get more information about a specific host, the internal vulnerability assessment feature of MARS initiates a port scan of the host. You cannot accurately define an egress rule list that permits the vulnerability assessment to take place while also restricting outbound ports. If you already use a supported third-party vulnerability assessment tool, such as QualysGuard, you do not need to use the internal tool. Otherwise, using the tool can greatly improve the accuracy of information presented to you by MARS.

    Network-Based IDS and IPS Issues

    A network-based IPS offers an additional level of protection to complement that provided by a stateful inspection firewall. An IPS is closely related to an IDS. At first glance, the most obvious difference between the two is how they are deployed.

    An IDS examines copies of network traffic, looking for malicious traffic patterns. It then identifies them and can sometimes be configured to take an automated response action, such as resetting TCP connections or configuring another network device to block traffic from an attacker.

    As shown in Figure 4-2, an IDS is typically deployed beside a traffic flow. It receives copies of network traffic from the network switches, hubs, taps, or routers. Because it does not sit in the flow of traffic, it does not break anything that MARS requires.

    An IDS often issues a large number of alerts based on traffic generated from MARS, especially if you're using the internal vulnerability assessment feature. You need to tune your IDS so that it does not alert on the vulnerability scans that originate from MARS. You might want to adjust the IDS tuning so that scans from MARS to your CORP_NET are ignored, but scans directed to the Internet trigger an alert. It is generally considered a bad practice to automatically scan hosts outside your own network; the practice might even be illegal. Make sure that MARS is not configured to scan anything that is not on your own network. Your firewall egress rules should not allow this either. However, in the case of a misconfiguration, your IDS can alert the appropriate personnel so that the configuration errors can be corrected.

    An IPS sits in the path of network traffic (see Figure 4-3), usually as a transparent device (like a bridge), and watches for many of the same behaviors as an IDS. A major difference between the two, though, is the capability of the IPS to act instantly when malicious traffic is seen.

    Because traffic must pass through an IPS, the IPS can prevent MARS from functioning properly if it is misconfigured. Take time to closely watch alerts generated by your IPS and tune it appropriately. Like the IDS, you should tune the IPS to allow vulnerability scanning to occur from MARS to CORP_NET, while preventing it from scanning the Internet.

    Some of the newest types of IPSs, such as the Cisco IPS, have a feature called traffic normalization. This feature, in particular, causes the MARS vulnerability assessment to fail. Traffic normalization enables several functions, including the following:

  • Prevents illegal combinations of TCP flags from passing, or removes the illegal flags
  • Prevents fragmented traffic from passing, or rebuilds it so that it is not fragmented
  • Changes all packets in a traffic flow to have the same time to live (TTL)
  • This is just a small sampling of what a traffic normalizer does. In general, you can think of it as an engine that takes traffic that does not conform to standards, and either prevents the traffic from passing through the IPS or makes it conform to standards first.

    By itself, traffic normalization breaks a large amount of attacks and reconnaissance activities. It also stops vulnerability assessment tools from being able to accurately determine information such as the operating system that a target host is running.

    If you're protecting your security management network with an IPS that supports traffic normalization, you need to tune it to either ignore the scans from MARS and Qualys (or other vulnerability scanners) or disable the traffic normalization capabilities.



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