Vulnerability assessments top 8 most useful analysis the method of recognizing, categorizing and characterizing the safety holes among the network infrastructure, computers & package, etc. Few samples of such vulnerabilities resort of a misconfiguration of parts in network infrastructure. A defect in associate degree software system, any ambiguity during a marketable product, etc.
Given below are the different types of vulnerability assessments:
Active evaluation are a type of vulnerability assessment that uses network scanners to scan the network to identify the hosts, services, and vulnerabilities present in that network. This network scanners have the capability to reduce the intrusiveness of the checks they perform.
Passive assessments sniff the traffic present on the network to identify the active systems, network services, applications, and vulnerability assessments. Even passive assessments provide a list of the users who are a recently using the network.
External assessment assesses the network from a hacker’s point of view to find out what exploits and vulnerabilities are accessible to the outside world. These types of assessments use external devices like firewalls, routers, and servers. An external assessment estimates the threat of network security attacks external to the organization. it determines how secure the external network and firewall are.
The following are some of the possible steps in performing an external assessments:
- Determine the set of rules for firewall and router configurations for the external network.
- Check whether external server devices and network devices are mapped.
- Identify open ports and related services on the external network.
- Examine patch levels on the server and external network devices.
- Review detection systems such as IDS, firewalls, and application-layer protection systems.
- Get information on DNS zones.
- Scan the external network through a variety of proprietary tools available or the Internet.
- Examine web applications sickish as e-commerce arc shopping cart software for vulnerability
An internal assessment involves scrutinizing the internal network to find exploits and vulnerability assessments.
The following are some of the possible steps in performing an internal assessments:
- Specify the open ports aria related services on network devices, servers, and systems.
- Check for router configurations and tire wall rule sets.
- List the internal vulnerabilities of the operating system and server.
- Scan for Trojans that may be present in the internal environment.
- Check the patch levels on the organization’s internal network devices, servers, and systems.
- Check for the existence of malware, spyware, and virus activity and document them.
- Evaluate the physical security.
- Identify and review the remote management process and events.
- Assess the file-sharing mechanisms if or example, NFS and SMB/CIFS shares) 0 Examine the antivirus implementation and events.
Also Read : Top vulnerability scanning tools
Host-based assessments are a type of security check that involves carrying out a configuration-level check through the command line. These assessments check the security of a particular network or server. Host-based scanners assess systems to identify vulnerabilities such as incorrect registry and file permissions, as well as software configuration errors. Host-based assessment can use many commercial and open-source scanning tools.
vulnerabilities such as missing patches, unnecessary services, weak authentication, and weak encryption. Network assessment professionals use firewall and network scanners such as Nessus. These scanners find open ports, recognize the services running on those parts, and find vulnerabilities associated with these services. These assessments help organizations determine how vulnerable systems are to Internet and Intranet attacks. and how an attacker can gain access to important information. A typical network assessment conducts the following tests on a network:
- Checks the network typologies for inappropriate firewall configuration.
- Examines the router filtering rules.
- Identities inappropriately configured database servers.
- Tests individual services and protocols such as HTTP, SNMP, and FTP.
- Reviews HTML source code for unnecessary information.
- Performs bounds checking on variables.
An application assessment focuses on transaction web applications, traditional client-server applications, and hybrid systems. It analyzes all elements of an application infrastructure, including deployment and communication within the client and server. This type of assessment tests the web server infrastructure for any misconfiguration, outdated content, and known vulnerabilities. Security professionals use both commercial and open-source tools to perform as, assessments.
Wireless Network Assessments
Wireless network assessment determines the vulnerabilities in an organization’s wireless networks. In the past, wireless networks used weak and defective data encryption mechanisms. Wireless network standards have evolved, but many networks still use the weak and outdated security mechanisms and are open for attack. Wireless network assessments try to attack wireless authentication mechanisms and get unauthorized access. This type of assessment tests wireless networks and identifies rogue wireless networks that may exist within an organization’s perimeter. These assessments audit client-specified sites with a wireless network. They sniff wireless network traffic and try to crack encryption keys. Auditors test other network access once they get access to the wireless network.
- Identify open ports and related services on the external network
- Examine patch levels on the server and external network devices
- Review detection systems such as IDS, firewalls, and application-layer protection systems
- Get information on DNS zones
- Scan the external network through a variety of proprietary tools available or the Internet
- Examine web applications sickish as e-commerce arc shopping cart software for vulnerability.
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Questions related to this topic
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- What are the types of vulnerability scans?
- What are the 4 main types of vulnerability in cyber security?
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