Brute Force Attack

Glossary

What is a Brute Force Attack?

A brute force attack systematically attempts various values, such as passwords or encryption keys, to gain access to a server.

It employs methods like dictionaries or traditional approaches, estimating the time needed based on factors such as attempts and system efficiency. Similar to trying different keys to unlock a door, this attack exploits vulnerabilities like weak passwords to access confidential data within web applications. Automated tools streamline these attacks, potentially compromising sensitive information. 

These attacks, similar to persistent attempts to breach defences, exploit weaknesses in user credentials through repetitive trial and error. With automated tools, attackers can efficiently execute these assaults, bypassing security measures to access privileged information or administrative controls within web applications. Successful intrusions may compromise confidential data or expose vulnerabilities, underscoring the necessity for stringent password policies and proactive security measures. 

Natures of Brute Force Attacks 

  1. Dictionary Attack: An attacker, using a dictionary attack, makes use of a pre-compiled list of frequently used words, phrases, or passwords. The attacker methodically attempts every item on the list until they either identify the right one or run out of options. 
  2. Hybrid Attack: A hybrid attack blends brute force methods with dictionary attack components. To improve the odds of success, it could include word mutations or adjustments from the dictionary list, like adding digits or special characters. 
  3. Credential Stuffing: Using login and password combinations that have been stolen from previous data breaches or exposed databases is known as credential stuffing. The process of attempting to access illegal content on different websites or services using these credentials is automated by the attacker. 
  4. Rainbow Table Attack: A rainbow table attack uses precomputed tables with hashes of popular passwords or phrases. By providing the attacker with easy access to the original password associated with a particular hash, these tables greatly accelerate the brute force operation. 
  5. Reverse Brute Force Attack: An attacker using a reverse brute force attack fixes one password and looks for several usernames that match it. This method works especially well against passwords that are weak or simple to figure out, giving the attacker quick access to numerous accounts. 

Common Indicators of a Brute Force Attack 

  1. Unusual Login Patterns: Repeated attempts to log in using multiple credentials are a common feature of brute force attacks. One way to spot such an attack is to keep an eye out for a high volume of unsuccessful login attempts coming from the same IP address or strange login periods. 
  2. Increase in Failed Login Attempts: A brute force attack may be indicated by an abrupt increase in unsuccessful login attempts, especially for user accounts with administrative capabilities. Such activity can be found by keeping an eye out for patterns of unsuccessful attempts in login logs. 
  3. Repeated Access to Authentication Pages: A continuous brute force attack may be indicated by persistent access to authentication pages, such as password reset or login forms, without any successful login attempts. Finding recurring visits to these pages through server log analysis can assist in identifying questionable activities. 
  4. Account Lockouts or Suspensions: After several unsuccessful attempts at logging in, brute force attacks frequently result in account lockouts or suspensions. A continuing attack may be detected by keeping an eye out for an increase in locked or suspended accounts. 
  5. Unusual Network Traffic: As the attacker tries to authenticate several times, brute force attacks cause a large volume of network traffic. This attack may be ongoing if network traffic is observed for any unexpected spikes in activity, particularly from particular IP addresses or geographical areas. 

How can iZOOlogic help my Company or Organisation? 

Find out how iZOOlogic can protect you against Brute Force Attack threats with the Web App Threat Protection solutions. 

To find out more about how iZOOlogic can help protect your company’s cyber security, schedule a demo.