What is the Heartbleed vulnerability and how does it impact web applications?
The Heartbleed vulnerability is a serious security flaw that was discovered in the OpenSSL cryptographic software library in April 2014. OpenSSL is widely used to secure communication on the internet, including web applications. This vulnerability allows an attacker to exploit a flaw in the OpenSSL implementation of the Transport Layer Security (TLS) heartbeat extension, which
How does reflected XSS differ from stored XSS?
Reflected XSS and stored XSS are both types of cross-site scripting (XSS) vulnerabilities that can be exploited by attackers to compromise web applications. While they share some similarities, they differ in how the malicious payload is delivered and stored. Reflected XSS, also known as non-persistent or type 1 XSS, occurs when the malicious payload is
- Published in Cybersecurity, EITC/IS/WAPT Web Applications Penetration Testing, Cross-site scripting, XSS - reflected, stored and DOM, Examination review
How does the tool Zoom assist in username enumeration for WordPress installations?
Zoom is a widely used tool for web conferencing, but it can also be leveraged by attackers for username enumeration in WordPress installations. Username enumeration is the process of discovering valid usernames for a target system, which can then be used in further attacks such as brute-forcing passwords or launching targeted phishing campaigns. In this
What is cross-site request forgery (CSRF) and how can it be exploited by attackers?
Cross-Site Request Forgery (CSRF) is a type of web security vulnerability that allows an attacker to perform unauthorized actions on behalf of a victim user. This attack occurs when a malicious website tricks a user's browser into making a request to a target website where the victim is authenticated, leading to unintended actions being performed
- Published in Cybersecurity, EITC/IS/WASF Web Applications Security Fundamentals, Practical web applications security, Securing web applications with modern platform features, Examination review
What was the vulnerability in the local HTTP server of Zoom related to camera settings? How did it allow attackers to exploit the vulnerability?
The vulnerability in the local HTTP server of Zoom related to camera settings was a critical security flaw that allowed attackers to exploit the system and gain unauthorized access to users' cameras. This vulnerability posed a significant threat to user privacy and security. The vulnerability stemmed from the fact that Zoom's local HTTP server, which
How was the vulnerability CVE-2018-71-60 related to authentication bypass and spoofing addressed in Node.js?
The vulnerability CVE-2018-7160 in Node.js was related to authentication bypass and spoofing, and it was addressed through a series of measures aimed at improving the security of Node.js applications. In order to understand how this vulnerability was addressed, it is important to first comprehend the nature of the vulnerability itself. CVE-2018-7160 was a vulnerability that
- Published in Cybersecurity, EITC/IS/WASF Web Applications Security Fundamentals, Managing web security, Managing security concerns in Node.js project, Examination review
What is the potential impact of exploiting the vulnerability CVE-2017-14919 in a Node.js application?
The vulnerability CVE-2017-14919 in a Node.js application has the potential to cause significant impact on the security and functionality of the application. This vulnerability, also known as the "decompression bomb" vulnerability, affects the zlib module in Node.js versions prior to 8.8.0. It arises due to an issue in the way Node.js handles certain compressed data.
How was the vulnerability CVE-2017-14919 introduced in Node.js, and what impact did it have on applications?
The vulnerability CVE-2017-14919 in Node.js was introduced due to a flaw in the way the HTTP/2 implementation handled certain requests. This vulnerability, also known as the "http2" module Denial of Service (DoS) vulnerability, affected Node.js versions 8.x and 9.x. The impact of this vulnerability was primarily on the availability of affected applications, as it allowed
Explain the concept of SQL injection and how it can be exploited by attackers.
SQL injection is a type of web application vulnerability that occurs when an attacker is able to manipulate the input parameters of a SQL query in order to execute unauthorized actions or retrieve sensitive information from a database. This vulnerability arises due to improper handling of user-supplied input by the application, allowing malicious SQL statements
- Published in Cybersecurity, EITC/IS/WASF Web Applications Security Fundamentals, Injection attacks, Code injection, Examination review