Ninja blog

Guestbooks have long been a feature on websites. They allow visitors to leave messages and share their thoughts. Unfortunately, these tools can also be exploited. In this article, we will explore how botnets scan for guestbook installations and the implications for website security. What is a Botnet? A botnet is a network of compromised computers. […]

In recent times, the threat of backdoors in web applications has escalated significantly. A backdoor allows unauthorized access to a system, making it a prime target for hackers. Organizations must understand how these vulnerabilities arise and how to address them promptly. What is a PHP Backdoor? A PHP backdoor is a malicious script programmed to […]

Local File Inclusion (LFI) is a common security vulnerability that allows attackers to include files that are already present on a server. This can lead to serious consequences, including unauthorized access to sensitive information, code execution, and even denial of service. Understanding LFI is crucial for web developers and system administrators alike. What is Local […]

SQL injection remains a critical vulnerability in web applications. One common type is the UNION-based SQL injection attack. This article explores how attackers exploit this vulnerability and offers practical prevention tips. What is SQL Injection? SQL injection is a technique where attackers manipulate SQL queries. By injecting malicious SQL code into input fields, they can […]

SQL injection (SQLi) remains one of the most critical threats to web applications. This attack allows attackers to interfere with the queries made to a database. When poorly constructed SQL queries are exposed, hackers can manipulate them to gain unauthorized access to sensitive data. What is SQL Injection? SQL injection occurs when an attacker provides […]

In today’s digital landscape, securing applications against unauthorized access is critical. One common vulnerability arises from the use of default login parameters in Spring Security applications. Attackers leverage these defaults to perform brute force attacks, targeting the j_username and j_password fields. Understanding the Vulnerability Applications that utilize Spring Security often accept login credentials via default […]

OAuth has become a widely adopted standard for authorization. However, its implementation can lead to vulnerabilities. Recently, an OAuth brute force attack was intercepted, raising concerns among developers and security professionals alike. The Nature of OAuth Brute Force Attacks Brute force attacks aim to guess passwords or tokens by trying numerous combinations until the correct […]

The XBShell backdoor is a significant threat in the security landscape. It allows attackers to gain unauthorized access to systems and execute malicious commands. This backdoor is particularly concerning due to its stealthy nature and the wide range of operations it can perform without detection. How XBShell Operates XBShell typically infiltrates a system through vulnerable […]

Backdoor vulnerabilities represent a significant threat to web application security. These vulnerabilities often allow unauthorized access to a system, bypassing standard authentication measures. Cybercriminals exploit them to install malicious software or steal sensitive data. What is a Backdoor? A backdoor is a method of bypassing normal authentication in a computer system. It provides remote access […]