Attack Vector guide

What is an Attack Vector? A comprehensive guide on Attack Vectors & their types

6 Mins Read

PUREVPNCybersecurityWhat is an Attack Vector? A comprehensive guide on Attack Vectors & their types

Cybercriminals can penetrate your company’s network in 93% of cases, according to beta news.

An attack vector is when a hacker attacks and penetrates a system with malicious intent. A cybercriminal can attack, manipulate computer systems, and steal large amounts of data.

To put it simply, an attack vector is a method by which an attacker could attempt to breach security and gain unauthorized access or other destructive action on a computer system or other digital devices, such as a Smart TV, smartphone, or similar device.

Classification of attack vectors

Internal attack vectors:

When the attacker gains access to the victim’s computer system within the network. Internal attack vectors rely on flaws in operating systems and other software, physical defects such as insecure door locks and poor site layout, poorly trained employees who may unwittingly allow an attacker to exploit weak points in the company’s defense, flaws in the system design, and other issues.

External attack vectors:

When the attacker gains access to the victim’s computer system from outside the network. External attack vectors are simpler for attackers to execute because they do not necessitate direct access to the victim’s systems.

Attack Vector happens in two ways

Cyberattacks went up by 50% in 2021 against many corporations. Therefore,  it’s important to know the differences between the types of attack vectors and how vulnerable CI systems are. Attack vectors are classified into passive and active (also known as “offensive”).

Passive attack

Passive attack vectors leave no trace of the source or use of the data. Even a vigilant administrator may have difficulty detecting them. Surveillance of user activities, such as gaining access to computer log files or network traffic, or monitoring wireless connections for unencrypted transmissions, are examples of passive attacks.

Active attack

Active attacks necessitate the victim’s participation, such as downloading malware-infected files via email attachments, accepting an infected USB drive, or clicking on a malicious HTML code in a web page link, which results in malware downloads and compromises the cloud environment. These attacks include Denial-of-Service (DoS) attacks, flooding attacks, email spamming, and malware.

How does an attacker get access to a company’s system?

An attacker can gain access to a target computer or device by exploiting vulnerabilities in the code in an application that has not been patched with the most recent security updates. The primary methods are:

  • Overloading the system so that it cannot function properly
  • Circumventing security controls designed to keep attackers out by exploiting bugs or loopholes in them
  • Stealing users’ passwords

Once an attacker has gained administrative privileges on a machine using one of these methods, they can begin installing malicious backdoors for future access. Here’s a recent example of cyberattacks on Ukraine as tensions between  Ukraine and Russia grow every day:

Type of common cyberattacks

If all else fails, some attackers will use social engineering to gain access. Social engineering uses lies and deception to trick victims into disclosing their credentials or clicking on malicious links, allowing malware to infect their computers.

Social engineering

To understand the concept, picture this: attackers will frequently pose as technical support personnel, contacting unsuspecting users and attempting to trick them into installing malware on their system, granting the attacker complete control of the computer. Users may also be duped by fake emails purporting to contain urgent security updates that trigger the download of additional malware when opened or installed without user permission.

Phishing

Email attachments, instant messaging, remote desktop applications, screen sharing services, and other popular applications that an attacker could use are listed below. These methods can also be used in tandem to increase the likelihood that an attack vector will be successful before detection (e.g., using email attachments delivered through instant messenger targets).

Ransomware attack

On May 17, 2017, a ransomware attack known as WannaCry hit over 150 countries. It is thought to be one of the most significant cyberattacks in history. Although reports indicate that North Korean hackers caused it, this has yet to be confirmed. FedEx, Hitachi, and Telefonica were important corporations affected (Porter, 2017). The ransomware attackers asked for a massive ransom in Bitcoin.

Denial-of-service (DoS) attack

Simply put, denial-of-service attacks occur when cybercriminals infiltrate and completely shut down machines, denying employees access. Cybercriminals launch DoS attacks by flooding systems with massive traffic, causing them to crash. Banks, governments, open-trade corporations, and high-end companies were the majority of those previously targeted by DoS attacks.

Brute-force attack

A brute force attack tries every possible combination of characters to crack a password until the correct one is found. For example, if the password was “Apple,” one might try “Apple,” “aPPle,” and so on until they’ve tried every combination with an ‘e.’ This method of attack is typically used with short passwords and is most effective when a dictionary of common words that could be used as a password is used.

Moreover, there’s no theoretical limit to the number of attempts that can be made with this attack, other than the time it takes to make them. However, if this is done, the size of the dataset to be cracked must be considered when determining how many machines to use in the attack. 

If an attacker ran 1,000 machines at 100,000 keys per second for one day, they would have tried 10 billion passwords. The length of time it takes to crack a password grows exponentially with the size of the dataset. If this could be reduced by a factor of 10, it would take 1000 machines one year to crack the same password.

Cross-site scripting

A cross-site scripting attack is an exploit that causes a user’s browser to run JavaScript written by the attacker. This vulnerability typically occurs when a web application receives untrusted input, such as the user’s URL or cookies. It then echoes this input into the HTML document that it dynamically generates. A successful XSS exploit can steal the victim’s session cookie, which is used to authenticate the user on the site.

How can companies combat emerging cyber attacks

There’s no denying that cyberattacks have been refined and optimized over the years. Cybercriminals have perfected their crafts and have found multiple ways to target big companies, acquire data, and launch ransomware attacks. Surprisingly, some cybercriminals can even launch attacks on air-gapped computers (devices with no internet).

  • Manage phishing attacks: Phishing is one of the most common cyberattacks where an employee clicks on a malicious link via email and loses crucial information. Training employees on determining phishing links and alerting everyone else can be a starting point in preventing phishing attacks. Around 60% of ransomware attacks happen due to clicking a malicious email. 
  • Use multi-factor authentication: Multi-factor authentication enhances the security of logging into a website. Because the service requires multiple identifications and verification forms, a threat actor can’t access the website even if they have obtained the necessary login information.
  • Secure all RDPs: When setting up an RDP session on your computer, it is critical to use a strong password. If you want to keep your computer safe from hackers, never use a weak password like “password” or “1234567890.” Even though Microsoft will not block a user after five failed login attempts (allowing someone to brute-force your RDP), we can ensure that we never use a weak password.
  • Patch management: Knowing what systems are in use within the organization is the first step in patch management. These devices must then be inventoried and accounted for, allowing an organization to determine how many patches can be applied simultaneously. Before deploying patches to production systems, patches should constantly be tested in a non-production environment. This will help ensure that the patch does not hurt the system, and it should be closely monitored for any unusual behavior during the first few hours or days of operation on live networks.

Your systems are smart, but cybercriminals are smarter

There’s no such thing as a perfect firewall or security blockages for a cyberattacker who knows the weaklings and has the inside-out picture of a company. The easiest way to mitigate such cyberattacks and securing systems is to ensure all employees know about phishing and protecting data on company devices.

Frequently asked questions

What is an Attack Vector in cybersecurity?

An attack vector in cybersecurity is a path or means by which malicious actors can access a computer system. Cybercriminals employ various attack vectors, including social engineering, phishing methods, web-based vulnerabilities, and software exploits. Attack vectors may also include connecting a computer directly to a network or using portable storage devices like a USB drive.

What attack vector requires no user interaction installing malware?

Zero-click attacks don’t involve any user interaction, and frankly, there’s not much you can do to prevent such attacks. To make a long story short, the malware attack looks like a significant vulnerability, but it’ll install malware into the system.

author

Ovais Khan

date

June 20, 2023

time

9 months ago

Ovais Khan is a tech and cybersecurity expert. He is a strong advocate for online privacy & security, following technological trends and their impact on today's digital era.

Have Your Say!!

Join 3 million+ users to embrace internet freedom

Signup for PureVPN to get complete online security and privacy with a hidden IP address and encrypted internet traffic.