A cookie, also known as an HTTP cookie, web cookie, or browser cookie, is used for an origin website to send state information to a user's browser and for the browser to return the state information to the origin site. The state information can be used for authentication, identification of a user ...

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3
votes
1answer
253 views

What servers or clients are immune to related-domain cookie attacks? (*.example.com)

In this question, I want to identify browsers, servers, or implementations that are immune from related domain cookie attacks (e.g. a.example.com vs b.example.com). Lacking any tangible solution, ...
3
votes
2answers
107 views

Should a session ID ever be sent over an unencrypted connection?

I'm teaching myself a touch of the most basic information security while toying with web dev, so that I can get a better understanding of the whole picture. Let's assume my website has user accounts ...
3
votes
1answer
931 views

How to MiTM insert an iframe using burp or another tool?

So, I am trying to obtain a cookie without the secure flag enabled over HTTPS. After reading about it, I came across an answer: You visit https://secure.example.com/ which drops a cookie on your ...
3
votes
1answer
3k views

Should cookies that contain non sensitive information be encrypted?

I'm in the process of creating a website and uses cookies to track user login. The only bit of information I store in this cookie is the users username. Should I be encrypting the username even ...
3
votes
1answer
183 views

Session Token Embedded in Form

I have a session token that's stored in a browser cookie client side. The cookie is already available for scripting and it's used to validate XHR through Javascript. For a particular page I'm using ...
3
votes
1answer
78 views

HTTPonly cookies

I was tasked to perform as scan against a lab and Nessus returned an "Apache HTTP Server httpOnly Cookie Information Disclosure" vulnerability. What I would like to know is what these cookies contain ...
3
votes
1answer
60 views

Possible issues when one or more cookie not HttpOnly

I have a question related to HttpOnly cookie. Tracking other threads wasn't of much help, hence I am posting my query here to learn if you can foresee any issues with my understanding. There is a ...
3
votes
1answer
497 views

Does using token-based auth make CSRF checks on login unnecessary?

Based on my understanding, avoiding the use of cookies as an authentication mechanism prevents CSRF vulnerabilities entirely (namely token based authentication in an SPA), when authenticated. Does ...
3
votes
3answers
388 views

Are there any same origin issues (SOP) with TOR?

Are there any issues with Same Origin Policy (SOP) with TOR or *.onion addresses? I'm thinking of cookies Plugins (Silverlight, Flash, Java, etc) Javascript
3
votes
2answers
211 views

How can I tell who's using my cookie information on an open LAN?

I think someone is using my cookie info to log into my Facebook account on a public Wi-Fi network. How can I determine if this is happening and from what IP address?
3
votes
1answer
42 views

API which does not allow to invalidate session on server side - how to make it more secure?

I'm writing an app around a REST API which does not allow the server to invalidate a session - i.e. there's no endpoint like logout which will make the cookie my app is using be invalid from now on. ...
3
votes
2answers
2k views

Session Authentication vs Token Authentication

I am trying to get a handle on some terms and mechanisms and find out how they relate to each other or how they overlap. Authenticating a theoretical web application and mobile application is the ...
3
votes
2answers
128 views

Is it normal for a payment procedure to ask for third party cookies to be turned on?

I was trying to pay for mobile phone credit online from a service provider. I selected the amount to pay and clicked next to continues. The following page asked me to turn on third party cookies if I ...
3
votes
1answer
1k views

CakePHP Set-Cookie Response Header

I am familiar with the cakePHP cookie and session settings but I am unsure as to why (when analyzing through the Burp Proxy Suite I am finding 2 separate Set-Cookie responses: Set-Cookie: ...
3
votes
1answer
162 views

Vulnerabilities of having one path of app accessible only via HTTPS but others via HTTP?

Imagine example.com that is accessible via HTTP and HTTPS. Most of content at site isn't secure and it won't be bad if it will be read by attacker. One of paths - example.com/secure_zone is accessible ...
3
votes
1answer
1k views

Storing users cookies in a database on a server

I want to use Apple Push Notification Service, so I need a server. This server will have to check a site every x minutes. How the site that has to be checked requires the user to login. So is it ok ...
3
votes
1answer
26 views

Separate third-party cookies for each website

Instead of blocking third-party cookies (which might be useful), why don't browsers allow them, but keep all cookies separate for each address-bar website? For example, if a third-party website sets ...
3
votes
1answer
211 views

Session Management for Private Key Passphrases in a Web Application

Use Case I would like to encrypt data in a database for a Web Application. The following requirements exist: Decryption should only be possible when a user provides a passphrase Encryption should ...
2
votes
2answers
1k views

Can cookies reveal my email address?

When I visit livescore.com, ten seconds later I receive marketing emails from gambling companies. If I don't visit this site, I don't receive these emails. Similar things happen when I visit Twitter ...
2
votes
1answer
139 views

What's the point of rejecting a cookie?

When you access a website, lynx provide the option to reject a cookie, what's the point of doing so? All I thought about is that if you don't accept a cookie, you cookie won't be stolen during a XSS ...
2
votes
3answers
438 views

What do web trackers know about/think of me?

Many companies use HTTP cookies, flash cookies, and other analytics to track visitors on the web and classify them. How can I find out what my web profile is currently, and what these trackers are ...
2
votes
2answers
52 views

Is it any more or less secure to delete all my cookies vs. individually logging out?

So I've lost all of my Firefox bookmarks (well not since 3.0) or history (3.5?) or my current session enough times (yeah... this still happens) that I don't leave my precious Firefox profile to ...
2
votes
2answers
1k views

What if a browser does not understand the secure flag of cookie

I have two questions related to the same: 1 - As 'Httponly' attribute is understood by a set of modern browsers (https://www.owasp.org/index.php/HttpOnly#Browsers_Supporting_HttpOnly), I was ...
2
votes
1answer
201 views

What will disabling third party cookies block?

What is the difference between 1st party cookies and 3rd party cookies and what are the pros and cons of disabling it? Will facebook and google (and other ad companies) be completely unable to track ...
2
votes
2answers
573 views

How to avoid session fixation (Login CSRF) by MitM attack without HSTS?

I'm writing a web app that already uses TLS encrypted connections (HTTPS), Secure; HttpOnly session cookie, HMAC-SHA1 CSRF token, requires correct Referer header to avoid Login CSRF and changes ...
2
votes
4answers
213 views

New gTLDs are coming. How will browsers handle cookies, SOP and certificates?

Given that the security "zone" varies based on the TLD, how will the new TLS be handled? For example: A browser may permit cookies to be shared and SSL certificates, and wildcard certificates ...
2
votes
2answers
450 views

How attacker can access victim's account without knowing its credentials?

I want to login facebook from a wifi connection and check sign-in page is over https but later when i don't pay attention to address bar (for example when playing games and click on links like a crazy ...
2
votes
1answer
585 views

What is this spam used for?

Recently my secondary e-mail address was exposed by an incident, and soon I received this spam. What is this spam used for?
2
votes
1answer
219 views

Is this a safe way to identify users connecting to a chat server?

Before I start, all information will go over HTTPS. So, my website is basically like a forum with the authentication part finished and working. This forum has a real time chat application that sends ...
2
votes
1answer
915 views

Can a webpage read another page's cookies?

I was listening to Pandora as I logged in here, and the next commercial was about InfoSec. That set me wondering as to whether that was a coincidence (probably) or if they knew somehow. To make a long ...
2
votes
2answers
373 views

how is Google Ads managing to track me? (even if I don't keep cookies!??) [duplicate]

NOTE: in this question I am interested in discovering the actual method used by Google to track me -in my particular case- and in exploring eventual ways to circumvent it. This is completely different ...
2
votes
1answer
2k views

cookie issue with same domain same path but different port

I have two web app running on same host on same path but on different port http://somedomain.com/ and https://somedomain.com/ now when I visit first app it serves the cookie say with name abc, and ...
2
votes
1answer
3k views

Stopping Session Hijacking

If you noticed, I put "stopping" instead "preventing" in the title because I want my PHP application to be as secure as possible. I am wondering if anyone has any better ways to prevent session ...
2
votes
2answers
203 views

Stealing document.cookie from Google domain, is this a privacy breach?

When I am logged into the Google and prints document.cookie I could see following cookies. My doubt is what all an attacker can do if attacker could steal these cookies of the victim using exploiting ...
2
votes
2answers
242 views

Are these two ways safe?

I have two scenarios and want to know if each is secure or which risk there are. Number One: If the User has the edit Link (edit/[md5hash]) he can edit a post. The editkey (the hash) is in an form ...
2
votes
2answers
117 views

The Need for includeSubDomains in HSTS RFC

I am trying to understand the includeSubDomains directive in the HTTP Strict Transport Security standard. In particular section 14.4 of RFC 6797 confuse me. Point 2. says The HTTP request sent to ...
2
votes
2answers
865 views

How does X-UIDH user tracking work and how can I detect it?

See these two EFF articles about how Verizon puts a tracker ID in the header of a http request, circumventing anti-cookie measures: Verizon Injecting Perma-Cookies to Track Mobile Customers, ...
2
votes
1answer
63 views

Is there a strong protection against CSRF executed from the sames server via stored XSS?

If we have a domain with stored-XSS vulnerability. I know it's already critical!.. But, I'm talking about limiting the damage. The hacker can't get the session cookie of the admin, because it's ...
2
votes
1answer
116 views

Conversant, CNAME, Cookies, and PCI complaince

We have been asked to evaluate Conversant Tracking. http://www.conversantmedia.com/solutions/enterprise-solutions From what I can tell its pretty straight forward tracking, like google re-marketing, ...
2
votes
1answer
194 views

How do websites tracker cookies and beacon work?

Could someone please enlighten me, either on a technical level or high level if that detail is not feasible, on how tracker cookies and beacons work. Particularly, how information on my browsing ...
2
votes
2answers
491 views

Bypass cookie validation

I have discovered that a web application allows the setting of certain cookie values through request parameters. Each request param results in a separate Set-Cookie header. i.e. a request like this: ...
2
votes
2answers
349 views

Can sessions be handled securely with cookies disabled?

I've been doing some reading here about session ID handling, and have learned that it's generally a bad idea to include a session ID in the HTML source code, and/or on the query string. For example Is ...
2
votes
1answer
462 views

UUID and Open_id in cookie 'good' enough?

I am using Tomcat 7, jsp to build a small website. I am new to security and it is a school project so using Spring Security is not an option. I am attempting to store UUID and Open_id in the clients ...
2
votes
2answers
537 views

HTTPOnly Cookies: Security Depends on Client Cooperation?

I've been implementing HTTPOnly cookie-based session handling and have some questions about what HTTPOnly means. I realise it's a flag that gets passed around in the HTTP header when setting cookies. ...
2
votes
2answers
674 views

Exploiting a potential ASP.NET web app Session Fixation vulnerability

I am pen-testing an ASP.NET application that is exhibiting Session Fixation behavior. The application is using cookie based sessions. Basically: When you land on the page no Session cookie is ...
2
votes
2answers
98 views

What can websites learn about me when I disable cookies?

I run Google Chrome with Ghostery, Privacy Badger, AdBlock and cookies disabled. If, theoretically, Ghostery is blocking all the trackers, AdBlock blocks ads, and I don't accept cookies, what can the ...
2
votes
2answers
188 views

Why do we trust session info over the wire but not an OAuth access token?

I've been spending a lot of time looking into building an API that needs to be accessible by a single page JavaScript application and how to make it as secure as possible. A lot of what I'm reading ...
2
votes
3answers
172 views

Flash cookie and man-in-the-middle

I am using the Scala Play web framework. In it, there is a PLAY_FLASH cookie used to flash messages to the user (it's a cookie so it will still work after several redirects). I put HTML in the cookie ...
2
votes
1answer
206 views

Session Cookie HttpOnly Set After Initial Server Response Showing as Vulnerable

Is a session cookie set without HttpOnly at first, but added before the client browser finishes rendering, still considered vulnerable? The scanner test I need to satisfy believes so, but is this a ...
2
votes
1answer
506 views

Active Directory: Should Workstations be separated from servers to protect from related domain hacks?

How should I protect domain joined hosts in the same AD domain from the Related Domain Cookie Attack? Suppose there is an AD forest called example.com. This company has a variety of internal and ...