That One Privacy Guy's VPN Comparison Chart. Understanding and selecting authentication methods. If you are serious about computer/network security, then you must have a solid understanding of authentication methods. Debra Littlejohn Shinder takes a moment to lay out the role authentication plays in a security plan. Computer/network security hinges on two very simple goals:Keeping unauthorized persons from gaining access to resourcesEnsuring that authorized persons can access the resources they needThere are a number of components involved in accomplishing these objectives. One way is to assign access permissions to resources that specify which users can or cannot access those resources and under what circumstances.
(For example, you may want a specific user or group of users to have access when logged on from a computer that is physically on-site but not from a remote dial-up connection.) Access permissions, however, work only if you are able to verify the identity of the user who is attempting to access the resources. That’s where authentication comes in. Security LLC - Chargen - If You're Typing The Letters A-E-S Into Y. Understudy note In tonight’s performance (January 2015) and onward, the role of MIKE TRACY will be played by JEFF JARMOC. A “young, cool-people’s” coffee shop on the first floor of an old office building in downtown Chicago. “My band is playing” notices line the wall. A hipster in a tight t-shirt hands a cappucino to JEFF JARMOC while THOMAS PTACEK waits impatiently. Did you see that? What? He got all those little beans and put them in the thing and tamped them down and Whatever. And he clickity-clack clickity-clacked with the machine and Jeff!
Jeff walks to a table at the side of the shop, grabbing a lid and a sleeve for his coffee. Miffed I don’t know. Why SSO? Jeff is maneuvering around people entering the shop through a door leading out to the hallway. It’s got crypto in it. Thomas follows Jeff, walking towards the elevators. Yeah, that could work. Print an invoice. Yeah, this will work. So, a base64 blob AES encrypted with a key both servers share? DING. You’ll be surprised. Oh, ok. Sorry. Uh… Why are free proxies free? Node.js Security Tips | via @codeship. Customizing OpenStack RBAC policies. OpenStack uses a role based access control (RBAC) mechanism to manage accesses to its resources. With the current architecture, users' roles granted on each project and domain are stored into Keystone, and can be updated through Keystone's API.
However, policy enforcement (actually allowing or not the access to resources according to a user's roles) is performed independently in each service, based on the rules defined in each policy.json file. In a default OpenStack setup (like Devstack), two roles are created: The Member role, which when granted to a user on a project, allows him to manage resources (instances, volumes, ...) in this project.The admin role, which when granted to a user on any project, offers to this user a total control over the whole OpenStack platform.
Although this is the current behavior, it has been marked as a bug. Attributes available to build custom policies Four types of attributes can be used to set policy rules: Example: admin and super_admin Notes. I was just asked to crack a program in a job interview ! I was just asked to crack a program in a job interview. and got the job. Hello everyone, i am quite excited about my new blog here.I am planning to write couple of blog posts every week. Since the title gives you a brief information about general concept , i would like to tell you my story about a job interview that was held in Ankara,TR. I applied a position named as "Software Security Engineer" and In the interview , they asked me really low level stuff some of them i know , some of them i dont.
Then they send me an email which includes an attachment for a protected and encrypted binary. ("CRACK MEEE! ") When i got home , i downloaded it and it asked me only a password to unlock it.They wanted me to find that password :) At first , it looks pretty hard but i will try to introduce the general concept that i had followed :) Here is the first thing i typed in the terminal root@lisa:~# . I typed something stupid keyword 3 times and it quited. :) Ok. Let's do this. Oh! Root@lisa:~# strace . #! Recommended Reading | The Homepage of @attrc. This page lists books that I have found to be highly relevant and useful for learning topics within computer security, digital forensics, incident response, malware analysis, and reverse engineering.
These books range from introductory texts to advanced research works. While some of these books may seem dated, the information contained is still very useful to people learning today, and much of the information is essential to becoming proficient in the information security realm. Please note that, in order to avoid ranking individual books, each category is listed in alphabetical order and each book is listed in alphabetical order within its category.
If you notice any errors with this page or have books that you think should be listed then please contact me. I will only list books that I have personally read and for which I am willing to vouch. Application Security - Native Application Security - Web Cryptography Database Forensics Digital Forensics and Incident Response Linux Usage Networking. WebSockets – Varnish, Nginx, and Node.js. This post was published 2 years ago. Due to the rapidly evolving world of technology, some concepts may no longer be applicable. Like many others I have been drawn in by the appeal of websockets and their use in (near) real-time communication. As such one of my current projects uses Node.js and websockets (via socket.io). To maximize compatibility, I would, of course, like my Node.js site to run on port 80. My server, however, is not used exclusively for this project – it also has traditional PHP/MySQL sites running on it.
Which brings me to my problem: My current setup has Varnish as a caching layer – to cache the dynamic PHP scripts – and Nginx as a webserver. As is good practice, static content will be served from a separate subdomain, but I would like all remaining content (including the websockets) to be served from the main domain. To recap, the objectives are: My server stack is Varnish Below is an edited version of my /etc/varnish/default.vcl.
Nginx Tracking a Request. Информационный портал по безопасности SecurityLab.ru. XSS Filter Evasion Cheat Sheet. Last revision (mm/dd/yy): 07/4/2018 This cheat sheet lists a series of XSS attacks that can be used to bypass certain XSS defensive filters. Please note that input filtering is an incomplete defense for XSS which these tests can be used to illustrate. Basic XSS Test Without Filter Evasion This is a normal XSS JavaScript injection, and most likely to get caught but I suggest trying it first (the quotes are not required in any modern browser so they are omitted here): XSS Locator (Polygot) The following is a "polygot test XSS payload. " javascript:/*--></title></style></textarea></script></xmp><svg/onload='+/"/+/onmouseover=1/+/[*/[]/+alert(1)//'> Image XSS using the JavaScript directive Image XSS using the JavaScript directive (IE7.0 doesn't support the JavaScript directive in context of an image, but it does in other contexts, but the following show the principles that would work in other tags as well: No quotes and no semicolon Case insensitive XSS attack vector HTML entities Malformed A tags <!
<! Cross-site Scripting (XSS) This is an Attack. To view all attacks, please see the Attack Category page. Last revision (mm/dd/yy): 06/5/2018 Overview Cross-Site Scripting (XSS) attacks are a type of injection, in which malicious scripts are injected into otherwise benign and trusted websites. XSS attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser side script, to a different end user. Flaws that allow these attacks to succeed are quite widespread and occur anywhere a web application uses input from a user within the output it generates without validating or encoding it.
An attacker can use XSS to send a malicious script to an unsuspecting user. Related Security Activities How to Avoid Cross-site scripting Vulnerabilities See the DOM based XSS Prevention Cheat Sheet See the OWASP Development Guide article on Phishing. See the OWASP Development Guide article on Data Validation. How to Review Code for Cross-site scripting Vulnerabilities Description onmouseover <%... Underground InformatioN Center - Компьютерная безопасность. Packet Storm. SecurityFocus. Computer Security - Internet Security - Network Security - Anti Virus Information Portal - Anti Virus Hacking Alerts Bulletins - InfoSysSec. BugTraq.Ru.