DVWA BruCON Workshop

Welcome to the Reactive Revolution:RSocket and Spring Cloud Gateway by Spencer Gibb at SpringOne Tour 2019

Multi-Tenancy is a critical component of any Software as a Service (SaaS) application, which enables one application instance to serve multiple organizations, or tenants. This presentation by Scott Crespo covers the basics of multi-tenant architectures, and how to implement multi-tenancy using Python, Django, and the open-source project known as Django Tenant Schemas.

About XSS security, their impact on PHP applications. Some examples of xss attacks. Solution for xss attacks.

Key Points What is Cross Site Request Forgery (CSRF)? How Attack Can Happen? Damages caused by CSRF? Mitigations What is Cross Site Request Forgery (CSRF)? CSRF is an attack in which attacker forges the request as a trusted user. The request is essentially made to send unintended data to the site. A vulnerable web application assumes that the data is coming from a trusted user. The root cause is – request coming from browser is trusted by server blindly, if CSRF protection is not implemented. This “blind trust” lets attacker create a forged request, and make the victim perform that request. How Attack Can Happen? Attacker knows about target application, on which the attack is to be performed Attacker forges request and sends it to victim who may be logged into the website by embedding that forged request into a hyperlink Victim clicks on it, and unknowingly sends malicious request to website Website accepts it and processes it. Thus the attacker is successful in performing the attack. Damages caused by CSRF? In Net-banking attacker can forge the request and send it to victim to steal money from Victim’s account Personal health information can be stolen or modified in a hospital database Attacker force victim to perform unwanted action which affect their profile Mitigation Techniques Can be mitigate by two ways CSRF token (a cookie which is introduced in each form and validated by web app) Captcha (implemented to ensure that the request is being performed by a human interaction)

The document discusses security misconfiguration as the sixth most dangerous web application vulnerability according to the OWASP Top 10. It defines security misconfiguration as improper configuration settings that can enable attacks. The document outlines how attackers exploit default passwords and privileges, and provides examples of misconfigured systems. It recommends ways to prevent misconfiguration like changing defaults, deleting unnecessary accounts, and keeping systems updated. The document demonstrates how to detect hidden URLs and directory listings using Burp Suite and concludes that misconfiguration poses a high risk if not properly safeguarded against.

Cross-Site Scripting (XSS) is a web security vulnerability that allows attackers to inject client-side scripts into web pages viewed by other users. There are three main types of XSS attacks: reflected XSS, stored XSS, and DOM-based XSS. XSS has been one of the top vulnerabilities on the OWASP Top Ten list for many years. While XSS attacks can compromise user sessions and steal sensitive data, developers can prevent XSS through proper input sanitization and output encoding. As web applications continue to grow in use, jobs in web application security and penetration testing are also expected to increase significantly in the coming years.

Introduction of Ethical Hacking, Life cycle of Hacking, Introduction of Penetration testing, Steps in Penetration Testing, Foot printing Module, Scanning Module, Live Demos on Finding Vulnerabilities a) Bypass Authentication b) Sql Injection c) Cross site Scripting d) File upload Vulnerability (Web Server Hacking) Countermeasures of Securing Web applications

Cross Site Scripting (XSS) is a type of injection attack where malicious scripts are injected into otherwise benign and trusted websites. XSS has been a top web application vulnerability since 1996. There are three main types of XSS attacks: reflected XSS, stored XSS, and DOM-based XSS. Reflected XSS occurs when malicious scripts come from URLs, while stored XSS happens when scripts are stored on websites. XSS can be used to steal cookies and sessions, redirect users, alter website contents, and damage an organization's reputation. Developers can prevent XSS through input validation, output encoding, and using the HttpOnly flag.

Cross-site scripting (XSS) allows malicious code to be injected into web applications, potentially enabling attacks like cookie theft, account hijacking, and phishing. There are three main types of XSS attacks: reflected, stored, and DOM-based. Reflected XSS tricks the user into clicking a malicious link, while stored XSS embeds malicious code directly into the website. DOM-based XSS targets vulnerabilities in client-side scripts. XSS remains a significant threat and proper input validation and output encoding are needed to help prevent attacks.

This document discusses API gateways as a solution for challenges that arise in microservices architectures. It describes how a monolithic architecture can become complex as services grow quickly. In a microservices architecture, clients could communicate directly with each service but this introduces problems around endpoint management, multiple requests, and refactoring difficulties. An API gateway provides a single entry point, routes requests to appropriate services, and aggregates results to address these issues. It then demonstrates Netflix Zuul, an open source API gateway, and provides a demo of its use with Eureka service discovery and routing between hello and goodbye microservices.

Application misconfiguration attacks exploit weaknesses in web applications caused by configuration mistakes. These mistakes include using default passwords and privileges or revealing too much debugging information. Misconfiguration can have minor effects but can also cause major issues like data loss or full system compromise. It is a common problem caused by factors like human error and complex application interfaces. Proper security practices like regular reviews and testing can help detect and prevent misconfiguration vulnerabilities.

This document summarizes web application security testing. It discusses understanding how web applications work and common security risks. It then outlines the main steps of a security test: information gathering, configuration management testing, authentication testing, authorization testing, business logic testing, data validation testing, and denial of service testing. Specific techniques are provided for each step like using tools like Nikto, ZAP, and Hydra or manually testing authentication, injections, error handling, and more.

This document discusses cross-site scripting (XSS) and cross-site request forgery (CSRF) attacks in HTML5. It begins with an overview of the evolution of HTML and the expansion of the browser attack surface with new technologies. It then covers specific XSS vectors using new HTML5 features like media tags, autofocus attributes, and forms. The document also examines how CSRF can be conducted using HTML5 features like XMLHttpRequests and bypassing the same-origin policy and CORS restrictions. Defense techniques like content security policy headers are also discussed.

I made this ppt for giving presentation in our college on online quiz system, this includes introduction, need, requirement analysis, screenshots etc.

This document summarizes a presentation about OpenID Connect. OpenID Connect is an identity layer on top of the OAuth 2.0 protocol that allows clients to verify the identity of the user based on the authentication performed by an authorization server, as well as to obtain basic profile information about the user. It defines core functionality for modern identity frameworks by standardizing how clients and servers discover and use identity data exposed by identity providers and how clients can verify that identity data. The presenter discusses how OpenID Connect provides a simple yet powerful way to authenticate users and share attributes about them between websites and applications in an interoperable manner.

This document provides an outline for a presentation on pentesting web applications with Burp Suite. It discusses using Burp Suite to scope a target, map content through spidering and directory bruteforcing, replace automated scanning with manual fuzzing using attack paylists, and test authentication through bruteforcing logins. Specific techniques covered include using the Burp spider, intruder, and engagement tools to discover content and hidden directories, importing wordlists to bruteforce hidden paths, and configuring intruder payloads and grep rules to analyze results from fuzzing and authentication testing.

In this session we will discuss about spring security, how it works, authentication and authorization in spring boot application.

Sqlmap Bypass 'larının nasıl çalıştıgı anlatılmıştır.Sorusu olan email adresinden ulaşabilir.

Web For Pentester örnek çözümleri.

Web for Pentester 2 ile Web Uygulama Güvenliğine Giriş

This document discusses Memcache injection, which is a technique for injecting malicious code into Memcached servers. It demonstrates how to inject newline characters to overwrite cached values and execute arbitrary commands. It also lists some programming languages and libraries that are vulnerable, as well as content management systems that could be impacted. Safe libraries and updated systems that have addressed this issue are also mentioned. The document aims to raise awareness of this Memcached injection technique and provide information to help secure systems.

Shawn Merdinger gave a presentation on Shodan, a search engine for internet-connected devices. He explained that Shodan scans the internet and indexes banners from devices to make them searchable. This allows users to find unprotected devices like IP cameras, industrial control systems, and medical devices. Merdinger showed examples of sensitive devices he discovered, including traffic lights, TV station antennas, and gas station pumps. He emphasized that while concerning, the visibility provided by Shodan can encourage better security practices.

This document outlines a presentation on hacking given by Ömer Çıtak at DEU's 2016 Computer Science Days. The presentation introduces the ADDIE model for designing training and discusses examples of hacking humans, drones, websites, governments, and universities to achieve various targets or results. It concludes by thanking the audience and providing Ömer Çıtak's website and social media information.

Bilgi Sistemleri Güvenliği Metasploit Sunumu

Akademik Bilişim 2016 etkinliği kapsamında Aydın Adnan Menderes Üniversitesi'nde vermiş olduğum seminerin sunumu.

Bu döküman Linux nedir neden tercih edilir gibi sorulara cevap arayanlara kısa bir bilgilendirmeden sonra Sanal makinaya Linux Ubuntu dağıtımının kurulumunu göstererek genel linux terminal ve komutlarının anlatımıyla son bulmaktadır.Lİnux ve özgür yazılım farkındalığını artırmak için giriş seviyesinde bir dökumandır.İşinize yaraması dileğiyle iyi çalışmalar.Soru,görüş ve önerileriniz için ahmet@gurelahmet.com a mail atabilirsiniz.

BTRisk ISO27001 BGYS Uygulama Eğitimi

Bilgi Güvenliği Akademisi Ekibi Tarafından Hazırlanmış Dokümandır. Bu Sunum Fireeye APT Etkinliği için Hazırlanmıştır.

The top 10 security issues in web applications are: 1. Injection flaws such as SQL, OS, and LDAP injection. 2. Cross-site scripting (XSS) vulnerabilities that allow attackers to execute scripts in a victim's browser. 3. Broken authentication and session management, such as not logging users out properly or exposing session IDs. 4. Insecure direct object references where users can directly access files without authorization checks. 5. Cross-site request forgery (CSRF) that tricks a user into performing actions they did not intend. 6. Security misconfiguration of web or application servers. 7. Insecure cryptographic storage of passwords or sensitive data. 8

How a new HTTP response header can help increase the depth of your web application defenses. Also includes a few slides on HTTP Strict Transport Security, a header which helps protects HTTPS sites from sslstrip attacks.

Slides for "HTML5 Security Realities" talk at W3Conf: Practical Standards for Web Professionals 2013. Brad Hill - PayPal @hillbrad

This is a multi-faceted workshop that explores new concepts in web security. After a solid grounding in well-known exploits like cross-site scripting (XSS) and cross-site request forgeries (CSRF), I'll demonstrate how traditional exploits are being used together and with other technologies like Ajax to launch sophisticated attacks that penetrate firewalls, target users, and spread like worms. I'll then discuss some ideas for the future, such as evaluating trends to identify suspicious activity and understanding human tendencies and behavior to help provide a better, more secure user experience.

This document discusses techniques for preventing SQL injection and cross-site scripting (XSS) vulnerabilities. It proposes using prepared statements with separate data and control planes as a "safe query object" approach. It also discusses policy-based sanitization of HTML and focusing code reviews on defect detection through annotating suspicious code regions. The overall goal is to help developers adopt architectures and techniques that thoroughly apply technical solutions to recognize and fix security weaknesses.

The document discusses various security issues that can occur on web portals, including cross-site scripting (XSS) vulnerabilities that allow altering of content or stealing cookies, and cross-site request forgery (CSRF) attacks. It provides examples of how these attacks can be carried out, such as using XSS to change website branding or send a user's cookies to an attacker. The document recommends mitigation techniques like input filtering, consistency checks, and tying sessions to IP addresses to help prevent these types of attacks.

The document discusses techniques for fingerprinting web servers by analyzing differences in their responses to common HTTP requests. It then outlines how this information can be used to identify specific web server software and versions. The document also examines how web server fingerprinting could enable cross-site tracing attacks if certain HTTP request methods like TRACE are enabled.

The security of an application is a continuous struggle between solid proactive controls and quality in SDLC versus human weakness and resource restrictions. As the pentester's experience confirms, unfortunatelly even in high-risk (e.g. banking) applications, developed by recognized vendors, the latter often wins - and we end up with critical vulnerabilities. One of the primary reasons is lack of mechanisms enforcing secure code by default, as opposed to manual adding security per each function. Whenever the secure configuration is not default, there will almost inevitably be bugs, especially in complex systems. I will pinpoint what should be taken into consideration in the architecture and design process of the application. I will show solutions that impose security in ways difficult to circumvent unintentionally by creative developers. I will also share with the audience the pentester's (=attacker's) perspective, and a few clever tricks that made the pentest (=attack) painful, or just rendered the scenarios irrelevant.

The security of an application is a continuous struggle between solid proactive controls and quality in SDLC versus human weakness and resource restrictions. As the pentester's experience confirms, unfortunatelly even in high-risk (e.g. banking) applications, developed by recognized vendors, the latter often wins - and we end up with critical vulnerabilities. One of the primary reasons is lack of mechanisms enforcing secure code by default, as opposed to manual adding security per each function. Whenever the secure configuration is not default, there will almost inevitably be bugs, especially in complex systems. I will pinpoint what should be taken into consideration in the architecture and design process of the application. I will show solutions that impose security in ways difficult to circumvent unintentionally by creative developers. I will also share with the audience the pentester's (=attacker's) perspective, and a few clever tricks that made the pentest (=attack) painful, or just rendered the scenarios irrelevant.

This document discusses responsive image techniques for adaptive web design. It begins by explaining browser sniffing versus feature testing, and recommends using feature testing to determine browser width, screen resolution, and bandwidth instead of browser sniffing. It then covers techniques like using background-size to control image sizes, SVG for smaller file sizes, and font-based solutions. The document also discusses server-side techniques like .htaccess rewrite rules and client-side techniques like picture and HiSRC. It advocates for a mobile-first approach using CSS media queries and a single pixel GIF for responsive images.

This document summarizes common web application vulnerabilities like SQL injection and cross-site scripting (XSS) for PHP applications. It provides examples of each vulnerability and discusses mitigation strategies like input sanitization, encoding output, and using security frameworks. It also covers other risks like cross-site request forgery (CSRF) and the importance of secure server configurations.

This document discusses various techniques for responsive images in web design, including browser sniffing versus feature testing, image sizes for different screen resolutions and bandwidths, and different implementation methods like .htaccess files, the <picture> element, and JavaScript libraries. It covers topics like using the browser width to determine layouts, screen resolution detection, and bandwidth testing. Workarounds discussed include using background images, SVGs, icon fonts, and compressed JPEGs. The document advocates a mobile-first approach and using CSS media queries to adapt designs based on screen size.

This document summarizes techniques for detecting XXE and SSRF vulnerabilities using DNS records. It describes how an attacker can configure their own DNS server to return their IP address instead of the actual domain, allowing them to detect if the application makes external requests. It also discusses challenges of detecting these vulnerabilities, and provides examples of how to test for them including checking web server access logs for requests to domains controlled by the attacker. The document then covers additional techniques like bypassing content security policies, detecting real users behind Cloudflare, and exploiting URL encoding to bypass input filtering.

This document provides an overview of the Open Web Application Security Project (OWASP). It discusses OWASP's mission to improve application security and lists some of its key projects, including the OWASP Top Ten, a list of the most critical web application security flaws. It also summarizes several common security testing techniques like information gathering, authentication testing, session management testing, and input validation testing. Tools are mentioned for each technique.

This document discusses techniques for building scalable websites with Perl, including: 1) Caching at various levels (page, partial page, and database caching) to improve performance and reduce load on application servers. 2) Using job queuing and worker processes to distribute processing-intensive tasks asynchronously instead of blocking web requests. 3) Leveraging caching and queueing libraries like Cache::FastMmap, Memcached, and Spread::Queue to implement caching and job queueing in Perl applications.

The document summarizes Christopher Schmitt's presentation at RWD Summit 2014 on adaptive images in responsive web design. It discusses using feature testing over browser sniffing to determine screen resolution and bandwidth. It presents techniques like srcset, picture, and JavaScript solutions to serve appropriately sized images. It also covers workarounds like background-size, SVG, and font-based solutions when native techniques are not supported. The focus is on building responsive images that scale with the device and load quickly.

The document discusses various techniques for hacking client-side insecurities, including discovering clients on the internet and intranet, attacking client-side through JavaScript jacking and pluggable protocol handlers, exploiting cross-site request forgery vulnerabilities, and fingerprinting clients through analysis of HTTP headers and browser information leaks. The presentation aims to demonstrate these hacking techniques through examples and a question/answer session.

This document summarizes Christopher Schmitt's presentation on adaptive images in responsive web design. The presentation covered: 1. Using the browser width, screen resolution, and bandwidth to determine the appropriate image to serve through feature testing rather than browser sniffing. 2. Techniques for serving responsive images including using .htaccess files, the <picture> element, and JavaScript libraries like HiSRC that select images based on various tests. 3. Workarounds for older browsers including using background-size: 100%, SVG images, and font-based solutions.

Caution: This is a dated presentation; uploaded for reference. While the principles remain valid, specifics may have changed. This presentation was made for software developers in Chandigarh - as a part of the NULL & OWASP Chandigarh Chapter activities. It covers the basics of secure software development and secure coding using OWASP Top 10 as a broad guide.

The document discusses security vulnerabilities found in the web interfaces of security gateways. The author details how they used automated scanners, manual testing with Burp, and SSH access to root to find over 35 exploits in various security gateway products since 2011. Common vulnerabilities included input validation issues, predictable URLs and parameters enabling CSRF, excessive privileges, and session management flaws. The author provides examples of compromising ClearOS and Websense gateways, and demonstrates OSRF through Proofpoint's email system. They conclude many techniques are older but there remains a knowledge gap between secure web and UI development.

Today’s digitally connected world presents a wide range of security challenges for enterprises. Insider security threats are particularly noteworthy because they have the potential to cause significant harm. Unlike external threats, insider risks originate from within the company, making them more subtle and challenging to identify. This blog aims to provide a comprehensive understanding of insider security threats, including their types, examples, effects, and mitigation techniques.

Kief Morris rethinks the infrastructure code delivery lifecycle, advocating for a shift towards composable infrastructure systems. We should shift to designing around deployable components rather than code modules, use more useful levels of abstraction, and drive design and deployment from applications rather than bottom-up, monolithic architecture and delivery.

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As a popular open-source library for analytics engineering, dbt is often used in combination with Airflow. Orchestrating and executing dbt models as DAGs ensures an additional layer of control over tasks, observability, and provides a reliable, scalable environment to run dbt models. This webinar will cover a step-by-step guide to Cosmos, an open source package from Astronomer that helps you easily run your dbt Core projects as Airflow DAGs and Task Groups, all with just a few lines of code. We’ll walk through: - Standard ways of running dbt (and when to utilize other methods) - How Cosmos can be used to run and visualize your dbt projects in Airflow - Common challenges and how to address them, including performance, dependency conflicts, and more - How running dbt projects in Airflow helps with cost optimization Webinar given on 9 July 2024

Widya Salim and Victor Ma will outline the causal impact analysis, framework, and key learnings used to quantify the impact of reducing Twitter's network latency.

If you’ve ever had to analyze a map or GPS data, chances are you’ve encountered and even worked with coordinate systems. As historical data continually updates through GPS, understanding coordinate systems is increasingly crucial. However, not everyone knows why they exist or how to effectively use them for data-driven insights. During this webinar, you’ll learn exactly what coordinate systems are and how you can use FME to maintain and transform your data’s coordinate systems in an easy-to-digest way, accurately representing the geographical space that it exists within. During this webinar, you will have the chance to: - Enhance Your Understanding: Gain a clear overview of what coordinate systems are and their value - Learn Practical Applications: Why we need datams and projections, plus units between coordinate systems - Maximize with FME: Understand how FME handles coordinate systems, including a brief summary of the 3 main reprojectors - Custom Coordinate Systems: Learn how to work with FME and coordinate systems beyond what is natively supported - Look Ahead: Gain insights into where FME is headed with coordinate systems in the future Don’t miss the opportunity to improve the value you receive from your coordinate system data, ultimately allowing you to streamline your data analysis and maximize your time. See you there!