CompTIA CASP+ CAS-004 Certification: A Simple Guide To Security Assessments

This guide will cover the different procedures and methodologies involved in security vulnerability assessments, penetration testing, internal and external audits, and color-team exercises.

Key topics:
- Reconnaissance
- Fingerprinting
- OSINT
- Social engineering
- Malware sandboxing
- Memory dumping
- Runtime debugging
- Vulnerability scan
- Penetration testing
- Assessment methods and types

Structure
- Vulnerability assessment methodology
- Types of penetration testing assessments

Objective
Before an organization’s IT Security team secures a network, it must first evaluate where the security flaws exist. The only way to do so is to conduct an honest evaluation of the network’s current status. Multiple techniques of evaluation should be utilized to account for the many types of vulnerabilities that might occur in a network. This guide goes through many of the types of security vulnerability assessments and the flaws which each one is expected to discover. We also cover ways for detecting various types of security flaws that don’t get discovered by those tools.

Vulnerability assessment methodology
To discover security flaws, a number of evaluation methodologies can be implemented. While some are responsible for finding network flaws, many others are focused on the vulnerable web server and application deployments. The following sections focus on the evaluation methodologies rather than the particular devices, with an emphasis on a conceptual approach.

Malware sandboxing
Malware sandboxing is a technique for detecting malware by running it on a computer and analysing it for signs of infection. One of its objectives is to detect zero-day malware, which is malware that has not yet been recognised by commercial anti-malware systems, and for which, no treatment exists. Cuckoo, an open-source automated malware analysis system, is an example of a commercial malware sandboxing technology. Seculert’s Elastic Sandbox is an example of a cloud-based solution. Customers, partners, vendors, and Seculert’s malware specialists use a web platform or application programming interface to upload suspicious executables to the Elastic Sandbox (API). The behaviour of the code is investigated in the sandbox, including network communications, metadata in network traffic, and host runtime modifications. All relevant information is evaluated using analytics to assess whether the code under investigation is malicious.

The figure below depicts the Elastic sandboxing process, which is only one example of how malware sandboxing works; this sandbox environment may be used by vendors and customers to test malware and benefit from the results of the analysis:



Figure: Seculert Elastic Sandbox

Malware sandboxing may be used to investigate and detect malware that has eluded the attention of the big commercial anti-malware vendors.

Memory dumping, runtime debugging
A core dump, also known as a memory dump, is performed by many penetration testing tools. Information such as sensitive data, passwords, usernames, and encryption keys are stored in memory by applications. Memory-reading tools can be used by hackers to examine all of an application’s memory information. Any vulnerability testing should take this into consideration and use the same methods to detect any vulnerabilities in an application’s memory.

Examples of memory-reading tools are as follows:
- Memdump: This free tool runs on Windows, Linux, and Solaris. It simply creates a bit-by-bit copy of the volatile memory on a system.
- KnTTools: This memory acquisition and analysis tool used with Windows systems captures physical memory and stores it to a removable drive or sends it over the network to be archived on a separate machine.
- FATKit: This popular memory forensics tool automates the process of extracting interesting data from volatile memory. FATKit helps an analyst visualize the objects it finds to help in understanding the data that the tool was able to find.

Runtime debugging, on the other hand, is the process of applying a programming tool to find faults in code that might lead to memory leaks and buffer overflows in addition to identifying syntactic problems. The allocation of RAM is analyzed and monitored using runtime debugging tools. These tools are unique to the programming language used to create the code.
If a hacker is able to induce a memory dump, memory dumping can help evaluate what a hacker might be able to discover. Runtime debugging is the best way to find syntax errors in an application’s code, as well as unexpected issues like memory leaks and potential buffer overflows.

Reconnaissance
Reconnaissance is a step of information gathering that usually precedes a network assault. To identify targets and piece together useful information that may make a target simpler to attack, both technical and non-technical ways might be utilized. This part of the hacking procedure is similar to a bank robber scouting a bank before conducting an attack.

Fingerprinting
Fingerprinting application scans a network, identifies hosts, and determines which services and applications are available on those hosts. They assist a hacker in sifting through the network’s mundane stuff to discover what is actually of interest. A hacker can discover vulnerabilities that may work on a host by fingerprinting or identifying its operating system.

There are two forms of fingerprinting, which are as follows:
- Active: To gather information about a target, active fingerprinting techniques send the packet to remote hosts and analyze the responses for clues about the responding system, such as using NMAP ping sweep or the traceroute command. A ping scan is usually performed first to identify all of the hosts on the network.

The outcome of the nmap scan is shown below:



Figure: NMAP Scan

If you examine the output in Figure 12.2, you can see their ports (21 – FTP, 22 – SSH, 53 – Domain, 80 – HTTP, 110 – POP3,143 – IMAP, 443 – HTTPS, 465 – SMTPS, 587 – Submission, 993 – IMPAS and 995 – POP3) along with their state (Open/Closed), and the services running on those ports. Using this information, the hacker would perform a port and services scan of the machines of interest.

- Passive: Rather than sending packets across a network, it is possible to simply collect and analyze them. A passive fingerprinting tool like NetworkMiner is one example. The output in the figure below identifies the operating system, and you can view greater information by expanding the host; passive scanning is used to collect all of this data:



Figure: NetworkMiner

The figure lists 129 systems or hosts that were discovered by NetworkMiner along with 131 files that may contain anomalies or abnormalities. By tunneling into the details of each machine, you can see the IP address, MAC address, hostname, operating system, and other sensitive information such as images, credentials, sessions in progress, and DNS and porta parameters used to communicate with the users.

Code review
The systematic analysis of the code for security and functional issues is known as code review. It can take many different forms, ranging from informal peer review to rigorous code review.

Code review may be divided into two categories, which are as follows:
- Formal review: This is a very detailed, line-by-line inspection that is usually done by various individuals throughout many phases. This is the most time-consuming sort of code review, but it is also the most effective in terms of detecting bugs.
- Lightweight review: This type of code review is much more cursory than a formal review. It is usually done as a normal part of the development process. It can happen in several forms, which are listed as follows:
- Pair programming: Two coders work side-by-side, checking each other’s work as they go.
- Email review: Code is emailed around to colleagues for them to review when time permits.
- Over the shoulder: Co-workers review the code while the author explains his or her reasoning.
- Tool-assisted: Perhaps the most efficient method, this method involves using automated testing tools.

While code review is most commonly conducted on internal applications, it may also be necessary for other situations. Suppose you’re engaged with a third party to design a web application that will process credit cards. Given the sensitive nature of the application, it’s not unusual for you to request your own code review in order to check the product’s security. Multiple tools should be utilized to test an application in various scenarios. For example, an online banking application that has had its source code updated should be subjected to both penetration testing and a code review of the important models to confirm that no errors are detected.

Social engineering
Attackers employ credible language and user gullibility to get user passwords or other confidential information in social engineering assaults. Phishing/pharming, shoulder surfing, identity theft, and dumpster diving are examples of social engineering hazards to be aware of. Providing user security awareness training is the safest way to combat social engineering risks. Because social engineering tactics are always evolving, this training should be required and repeated on a regular basis.

Phishing/pharming
Phishing is a type of social engineering attack in which the attacker attempts to get personal information such as credit card numbers and financial information. This sort of attack is generally carried out by creating a fake website that seems almost identical to the real thing. On the malicious website, users enter information, including credentials, allowing the attackers to capture any information entered.

Spear phishing is a type of phishing attack that focuses on learning about a single target’s patterns and lifestyle. Because of the information that must be gathered, spear-phishing attacks take longer to carry out than phishing attacks.

Pharming is similar to phishing, except it entails compromising a computer’s DNS cache so that queries for a valid site are sent to another site. Users should be warned not to click on any links included in email messages, even if the message appears to be from a trustworthy source. Users should also verify the URL bar when they visit a site that requires personal information to confirm that the site is correct and that SSL is in use.

Shoulder surfing
Shoulder surfing happens when a user submits login or other private information while still being monitored by an attacker. Users should be encouraged to be aware of who is watching their activity at all instances. The use of privacy screens ensures that data entry is not logged.

Identity theft
Identity theft occurs when someone acquires personal information such as a driver’s licence number, bank account number, or Social Security number and uses it to impersonate the person whose information was taken. The attack can continue in any way after the identity has been assumed. The majority of times, attackers set up financial accounts in the user’s identity. Attackers can also acquire access to a user’s legitimate accounts.

Dumpster diving
In order to gain sensitive information, attackers examine the contents of physical garbage cans or recycle bins, such as personnel information, account login information, network diagrams, and corporate financial data. Shredding protocols for papers containing this information should be implemented by corporations.

Pivoting
Pivoting is a method used by both hackers and pen testers to go from one compromised site to another on the same network. It enables pen test tools installed on the compromised system to route traffic through other hosts on the subnet, potentially allowing access to other networks.

One set of steps that could potentially illustrate pivoting is the following:
Step 1: Compromise a client.
Step 2: Open Metasploit.
Step 3: Choose an exploit.
Step 4: Get meterpreter and type meterpreter> ipconfig.
Step 5: Scan the network you find.
Step 6: Run scans using tools like Nmap, Msfconsole, and others.
Step 7: Add a route from the default gateway to the compromised system so that all traffic from the default gateway must be routed through the compromised machine.

Open-source intelligence
The data obtained from publicly available sources is referred to as open-source intelligence (OSINT). In many circumstances, the information obtained from these sources allows for an assault to be carried out. The sections that follow examine some of the sites where hackers hunt for information that can be used in an attack.

Social media
Organizations are increasingly turning to social media to communicate with consumers and the broader public. While using social media platforms such as Twitter, Facebook, LinkedIn, and others to connect with consumers, create brands, and disseminate information to the rest of the world can be beneficial, they can also mistakenly reveal confidential information.

The following are some of the risks associated with using social media:
- Mobile apps for business devices: Although we can’t entirely blame social media for the usage of mobile apps on corporate devices, the simplicity with which social media and other forms of mobile apps may be downloaded and installed has increased the risk of infection.
- Unrealistic confidence in social media: Proprietary information and business strategies may be accidentally divulged to a friend under the false assumption of secrecy. This is complicated by social networking sites’ security and privacy settings, which are often misinterpreted and changed regularly.
- Malicious code may be hidden behind adverts and third-party programs on social networking platforms. Hackers profit from the way consumers repost links since it allows them to automate the dissemination process.
- Lack of policies: Every company should have a social media policy that specifically states how employees can use social media. A social media director or coordinator should be appointed, and appropriate training should be provided that spells out what users are permitted to say on behalf of the organization.
Adopting a social media strategy that outlines what users are authorized to say on behalf of the firm in social media postings is the best method to prevent information breaches that may be used to attack your network.

Whois
Whois is a protocol for locating private Border Gateway Protocol [BGP] networks on the Internet by querying databases that provide information on the owners of Internet resources such as domain names, IP address blocks, and autonomous system (AS) numbers. This data is a gold mine of information that may be used to improve network assaults. Whois was initially a command-line interface program, but it is now available via web-based solutions as well. Despite the fact that law enforcement agencies in the United States claim that Whois is an important tool for investigating spamming and vishing, the Internet Corporation for Assigned Names and Numbers (ICANN) has called for its replacement with a system that keeps information hidden from most Internet users and only discloses it for “permissible” reasons.

To erase their information from the Whois database, several corporations employ third-party privacy services. Although this is possible, the general public may be left wondering what an organization is hiding. People may be less likely to conduct business with the company as a result. Therefore, you should weigh the benefits and drawbacks while weighing your selections.

The figure below is a portion of the Whois output from a domain name search; as you can see, this tool may provide you with a wealth of information about a company:



Figure: Whois

Routing tables
The OSI model’s layer 3 is where the routing takes place. This is also the layer where IP functions and packets are routed with their source and destination IP addresses. Routers are devices that send and receive data between systems on various IP networks. When computers are connected to multiple IP networks, they cannot interact unless a router is present to route messages to the appropriate networks. Routing tables are used by routers to store information about pathways to other networks. There are numerous ways to populate these tables – administrators can manually enter these routes, or routers can exchange routing tables and information via dynamic routing protocols.

Manual setup, also known as static routing, has the benefit of eliminating the extra traffic generated by dynamic routing protocols and allowing for fine control of routing behavior; nevertheless, it necessitates manual intervention when links fail. Dynamic routing protocols generate traffic, but they may also respond to connection failures and redirect traffic without the need for manual intervention. In terms of security, routing protocols present the risk of routing update traffic being intercepted, allowing a hacker to gather vital knowledge about the network’s topology.

Furthermore, Cisco equipment (possibly the most extensively used networking devices) employs a proprietary layer 2 protocol called Cisco Discovery Protocol (CDP) by default, which allows them to communicate with one another about their capabilities.

Additional information may be gathered by capturing CDP packets, which might be useful in mapping the network in advance for an attack. Hackers can also bring rogue routers onto a network and update or replace a legal enterprise router’s routing table. This might be done by a hacker to understand the network’s routes and basic topology, as well as to contaminate the routing table with wrong routes that could aid in an assault.

The following is a sample of a routing table before it is compromised:
Source Network Next hop Exit interface
- 10.110.0.0 [110/5] via 10.120.254.6, 0:01:00, Ethernet2
- 10.67.10.0 [110/128] via 10.120.254.244, 0:02:22, Ethernet2
- 10.68.132.0 [110/5] via 10.120.254.6, 0:00:59, Ethernet2
- 10.130.0.0 [110/5] via 10.120.254.6, 0:00:59, Ethernet2
- 10.128.0.0 [110/128] via 10.120.254.244, 0:02:22, Ethernet2
- 10.129.0.0 [110/129] via 10.120.254.240, 0:02:22, Ethernet2

The routing table displays the router’s routes to external networks. The source of the routing information is shown in the first column of this example. The router in this situation sees the first column and is aware of the networks thanks to the Open Shortest Path First (OSPF) protocol. The distant network is shown in the second column, the next-hop IP address to access that network (another router) is listed in the third column, and the local exit interface on the router is listed in the fourth column. The routing table looks like the following after the hacker has persuaded the local router to share the routing information and polluted the local routing table:

- 10.129.0.0 [110/129] via 10.120.254.178, 0:02:22, Ethernet2
Take a look at the 10.129.0.0 network’s path. It is now routing to the IP address 10.120.254.178, which is the hacker’s router address. The hacker can then redirect all traffic meant for a safe server at 10.120.154.180 to a server they control at 10.120.154.181. After that, the hacker can gather names and passwords for the genuine secure server.

Routers should be set with authentication to identify and authenticate any routers with whom they communicate information to prevent such attacks. If the connection between them is configured to employ Point to Point Protocol (PPP) encapsulation, routers can be configured to authenticate one another. PPP is a layer 2 protocol that may be easily enabled with the command encapsulation ppp on a router interface. It uses two forms of authentication once it is enabled

– PAP and CHAP. Password Authentication Protocol (PAP) is a protocol that sends a credential in clear text. Challenge-Handshake Authentication Protocol (CHAP) is a superior option since it never sends credentials across the network.

The CHAP process is as follows:
Step 1: The local router sends a challenge message to the remote router.
Step 2: The remote node responds with a value calculated using an MD5 hash salted with the password.
Step 3: The local router verifies the hash value with the same password, thus ensuring that the remote router knows the password without sending the password.

DNS records
Because DNS records identify each device on a network by name and IP address, they are immensely important to an attacker. Because it is feasible to discover the network ID of the network in which each device lives and, thus, which devices are grouped into common subnets, the IP addresses may also indicate how the devices are organized. Types of DNS records are grouped.

The most popular DNS record types are shown below:


Figure: DNS Record Types

DNS harvesting is the process of obtaining an organization’s DNS records for use in network mapping. DNS harvesting is most easily accomplished through illegal zone transfers. However, using the tracert tool on Windows or the traceroute utility on UNIX is one method a hostile user might be able to retrieve a few records. These tools follow a packet’s journey from its origin to its destination. The final few devices on tracert’s list of hops or routers through which the packet has passed are usually inside the organization’s network. If tracert displays the names of those devices, the hacker has access to them.

The tracert output is shown below. Tracert was able to resolve the names of some of the routers in this case, but not the last two. The last few hops frequently time out because the destination network operators have configured the routers to ignore ICMP packets.

The figure below displays this:



Figure: Tracert

Another method of DNS harvesting is to persuade an organization’s DNS server to transfer a zone to the attacker. While this used to be fairly straightforward, it is now a little more complicated if the organization has elected to designate the DNS servers via which zone transfers can be accomplished. You should double-check that you’ve completed this step before attempting a DNS zone transfer from an unauthorized DNS server. A dialogue box from a Microsoft DNS server is shown below; you can define the only servers to which zone transfers may occur on the zone transfers tab of the DNS server’s properties:


Figure: Controlling DNS Zone Transfers

The nslookup command is a command-line utility for diagnosing and testing DNS servers. It has two modes of operation – interactive and noninteractive. Interactive mode allows you to query for either an IP address for a name or a name for an IP address without leaving nslookup mode. The noninteractive mode is ideal when only a single piece of data has to be returned.

As an example of nslookup for a domain, see below. Nslookup finds the IP address and name of the DNS server that the local system is set to use, if one exists, and then returns to the > prompt. You can input an IP address or a name at this prompt, and the system will try to resolve the IP address to a name or the name to an IP address.

The figure below isplays this:


Figure: NSlookup Domain

Search engines
For acquiring reconnaissance information, search engines such as Google, Yahoo, and Bing can be employed. The use of sophisticated operator-based searching to locate exploitable targets and sensitive data through search engines is known as search engine hacking.

Some examples of hacker-friendly search engines are as follows:
- Shodan
- IVRE
- ZoonEye
- Censys
- Test Types

While maintaining network security may appear to be a daunting task, there are several technologies available to assist you. Unfortunately, every instrument with a legal application can also be used for nefarious purposes. These tools are used by hackers to identify, infiltrate, and manage networks, but you may use them to prevent assaults from succeeding. The parts that follow go through some of the most frequent assessment tools.

Penetration test
A penetration test (also known as a pen test) is a type of security test that simulates an attack on a system, network, or application. Its importance stems from its ability to uncover security flaws that could otherwise go unreported. It varies from a vulnerability test in that it tries to exploit rather than just discover problems. Nothing draws attention to a software flaw like the disclosure of sensitive data as a result of the flaw. One of the most useful pieces of knowledge gleaned from these testing is the discovery of single actions that, although benign on their own, cause security issues when employed together. When using a framework like Metasploit or Canvas, these tests may be made more effective.
Penetration testing should be carried out on a regular basis, with the frequency defined by the sensitivity of the information on the network.

The figure below illustrates an example of Retina, a vulnerability tool that may be combined with Metasploit, a penetration testing tool. The test discovered eight major flaws (shown by upward-pointing arrows) in this output – inadequate encryption in terminal services, six Oracle vulnerabilities, and one vulnerability connected to Oracle VirtualBox, a virtualization software on the computer.

The figure below displays the Retina penetration tester:


Figure: Retina Penetration Tester

The steps in performing a penetration test are as follows:
Step 1: Document information about the target system or device.
Step 2: Gather information about attack methods against the target system or device.
Step 3: Identify the known vulnerabilities of the target system or device.
Step 4: Execute attacks against the target system or device to gain user and privileged access.
Step 5: Document the results of the penetration test and report the findings to management, with suggestions for remedial action.

Internal and exterior testing should both be carried out. Internal tests are conducted within the network, whereas external tests are conducted outside the network and are directed at publicly exposed servers and devices. Penetration testing strategies are dependent on the organization’s established testing objectives.

As a candidate for CASP, you should be conversant with the following strategies:
- Blind Test: The testing team is given little knowledge of the network systems and devices and is only given publicly accessible information to execute the test. The security staff at the company is aware that an attack is imminent. This test necessitates extra work on the part of the testing team.
- Double-blind test: This test is similar to a blind test, except that the organization’s security personnel is unaware of the impending assault. This test generally necessitates a joint effort from the testing team and the security team of the firm.
- Target test: The testing team and the organization’s security team are both provided with as much information as possible about the network and the sort of test that will be conducted. This is the simplest sort of test to perform, but it does not offer a complete picture of the security of the company.

Penetration testing is also classified according to the quantity of data supplied to the testing team. The following are the primary categories that you should be familiar with:
- Zero-knowledge test: The testing team is given no information about the company’s network. To collect information about the organization’s network, the testing team can utilize any method available to them. Closed or black-box testing is another term for this.
- Partial-knowledge test: The testing team is given public information about the company’s network. For this sort of test, boundaries can be established.
- Full-knowledge test: The testing team is given access to all information about the organization’s network. This test focuses on the types of assaults that can be carried out.

Black box
Penetration testing may be classified into many types based on the quantity of data that has to be collected. In black-box testing, also known as zero-knowledge testing, the team is given no information about the organization’s network. To collect knowledge about the organization’s network, the team can employ any tool at its disposal. Closed testing is another term for this.

White box
A team begins the white-box testing procedure with a thorough grasp of the application or system. The team uses this information to create test cases that simulate each path, input field, and processing method. The team would have access to all network information in the case of a network, which they could use and leverage in the test.

Gray box
The team is given more information in gray-box testing than in black-box testing, but not as much as in white-box testing. Gray-box testing offers the benefit of being non-intrusive while keeping the developer-tester separation. On the other side, it could disclose some of the issues that white-box testing might miss.

The figure below compares the three testing methods:



Figure: Penetration Testing methods

Consider the security implications of each while deciding between black-, white-, and gray-box testing. Because white-box testing exposes the code to the testers, it should only be done by extremely trusted individuals, such as internal testers. Untrusted entities, such as third-party testers, might benefit from black-box testing. Black-box testing should be performed by a third party with sufficient resources to run as many test cases as necessary and examine all code paths. You should also think about the sort of malevolent activity you’re attempting to predict.

For example, if you want to see if an attack from outside the network is likely, you should perform a black-box test, because anyone trying it is unlikely to have any internal knowledge of the application. On the other hand, if you’re more interested in the sort of assaults that may come from your own employees, gray-box testing, in which the attacker has some knowledge of the system, might be a good fit.
Finally, you should think about how the testing approach will affect the network. White-box testing has a minimal chance of affecting system stability, but black-box testing has a larger risk of causing system instability.

Vulnerability assessment
Irrespective of the elements under investigation (network, application, database, etc. ), the aim of any vulnerability assessment is to identify problems before they are exploited to compromise the component, either intentionally or accidentally. The evaluation process’s design has a significant influence on its performance.

Before an assessment process is developed, the following goals of the assessment need to be identified:
- The relative worth of the information that may be obtained by compromising the components under consideration, aids in determining the quantity and kind of resources that should be allocated to the problem.
- Threats specific to the component; for example, due to the differences in their operation and locations on the network, a web application might not be vulnerable to the similar issues and threats as compared to the network traffic on a firewall.
- Mitigation methods that may be used to address concerns that are discovered, such as identifying common tactics, may reveal difficulties that were not initially expected. When doing a vulnerability test on your standard network operating system image, for example, you should anticipate vulnerabilities and determine how you will resolve them.

A security analyst undertaking a vulnerability assessment must be familiar with the network’s systems and devices, as well as the duties they perform. The analyst will be able to analyze the vulnerabilities of the systems and devices based on the known and possible threats to the systems and devices with this knowledge.

Security analysts should look at the controls that are already in place and see if there are any dangers to them. After that, the security analyst will utilize all of the data acquired to decide which automated tools to employ to look for vulnerabilities. When the vulnerability analysis is completed, the security analyst should double-check the results to make sure they’re correct, then present the findings to management with recommendations on how to fix the problem. Threat modeling should be carried out using this information to determine the dangers that might negatively affect systems and devices, as well as the attack techniques that could be deployed.

A vulnerability management system may be necessary in specific cases. A vulnerability management system is software that centralizes and automates the process of continuously monitoring and testing the network for vulnerabilities to some extent. Without human assistance, such a system can scan the network for vulnerabilities, report them, and, in many circumstances, fix the problem.

While a vulnerability management system is a useful tool to have, no system can replace vulnerability and penetration testing done by skilled specialists, no matter how advanced it is.

Keep in mind that the results of a vulnerability assessment are only a snapshot. Even if no vulnerabilities are discovered, the simplest way to summarize the situation is that there are currently no known vulnerabilities. It is hard to predict whether or not a flaw will be identified in the future.

Self-assessment
While many businesses opt to have third-party vulnerability and penetration testing conducted, organizations should conduct self-assessments in between these examinations. Conducting tabletop exercises is one of the most frequent approaches for this procedure.

Tabletop exercises
Before going on to higher-level testing, a tabletop exercise is the most cost-effective and efficient approach to uncovering areas of risk. A tabletop exercise is a casual brainstorming session in which corporate executives and other important personnel are encouraged to participate. In a tabletop exercise, participants agree on a specific assault scenario on which they will concentrate.

Internal and external audits
Internal and external audits should be conducted as part of any security evaluation and testing plan. All security mechanisms that are currently in place should be tested during an audit.

The following are some suggestions to consider as part of a solid security audit plan:
- At a minimum, perform annual audits to establish a security baseline.
- Determine your organization’s objectives for the audit and share them with the auditors.
- Set the ground rules for the audit before the audit starts, including the audit dates/times.
- Choose auditors who have security experience.
- Involve business unit managers early in the process.
- Ensure that auditors rely on experience, not just checklists.
- Ensure that an auditor’s report reflects risks that your organization has identified.
- Ensure that the audit is conducted properly.
- Ensure that the audit covers all systems and all policies and procedures.
- Examine the report when the audit is complete.

Audits are now required by several rules.

Previously, organizations relied on Statement on Auditing Standards (SAS) 70, which provided auditors with information and verification concerning data center controls and processes linked to data center users and financial reporting. An SAS 70 audit was utilized to ensure that the data center’s rules and processes were really followed. The Statements on Standards for Attestation Engagement (SSAE) Number 16 is a new standard that verifies controls and processes while also requiring a written claim about the controls’ design and operational performance.

A Service Organization Control (SOC) 1 report is the result of an SSAE 16 audit. Internal controls over financial reporting are the topic of this study.

There are two types of SOC 1 reports, which are as follows:
- SOC 1 Type 1 report: This type of report focuses on the auditors’ opinion of the accuracy and completeness of the data center management’s design of controls, systems, and/or services.
- SOC 1 Type 2 report: This type of report includes the Type 1 report as well as an audit on the effectiveness of controls over a certain time period, normally between six months and a year.

SOC 2 and SOC 3 are two further report kinds available. Both of these audits serve as standards for controls relating to a system’s security, availability, processing integrity, confidentiality, and privacy.

A SOC 2 report includes service auditor testing and outcomes, whereas a SOC 3 report just includes a system description and the auditor’s judgment. A SOC 3 report, which is intended for general use, is a level of certification for data center operators that guarantees facility security, high availability, and process integrity to data center customers.

Color team exercises
To respond to security incidents in the most orderly and effective manner, security analysts must practice reacting to them. There are a few tried-and-true approaches to this. This section examines how analyst teams, both internal and external, might be formed, as well as some well-known names for these groups. War game exercises, in which one party assaults the network while the other seeks to protect it, are commonly used to assess security posture.

These games typically have some implementation of the following teams:
- Red team: The attackers are represented by the red team. It usually conducts penetration testing by acquiring information about the network, scanning the network for vulnerabilities, and attempting to exploit the weaknesses. The rules of engagement specify the activities that this team can perform ahead of time. These are frequently third-party contractors who have no prior understanding of the network. This allows them to practice assaults that aren’t carried out by insiders.
- Blue team: This group is in charge of network defense. The red team’s attempted attack puts the blue team’s ability to respond to the attack to the test. It can also be used as a warm-up for a true attack. This involves looking at log files, employing a security information and event management (SIEM) system, gathering intelligence, and analyzing traffic and data flow.
- White team: This squad of technicians is in charge of officiating the match between the red and blue teams. One of the white team’s responsibilities might include enforcing the rules of engagement, as well as monitoring the blue team’s response to the attack, and taking note of the red team’s specific tactics.

Conclusion
Malware sandboxing, memory dumping, runtime debugging, reconnaissance, fingerprinting, code review, social engineering, pivoting, and open-source intelligence were among the processes addressed in this guide. It also covered the approaches used in security vulnerability assessments, penetration testing, internal and external audits, and color-team exercises.