a cross site request forgery attack causes a visitor of a malicious website to send a request to a legit website to which he is already logged in including the session cookie.

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1answer
84 views

Is it possible to trick a person into going to a website, and running JavaScript, without them knowing? (no iframes)

My website is W. If you make a GET request to my website, it gives you JavaScript, and if you execute the JS, then you do some action (if you are logged in and have a session cookie). Can someone ...
0
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2answers
31 views

How is JSESSIONID determined in this CSRF test?

I'm working on testing CSRF protection for one of our webapps. We have a test case like the following: <!DOCTYPE html> <html> <head> </head> <body> ...
4
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1answer
40 views

Is there any effective server-side prevention technique against PHP-aided CSRF?

I'm gonna start by saying it: I'm merely a cybersecurity enthusiast, not an expert. Thus, I'm gonna state what I think I know so far, please feel free to correct me at any time. Through my readings, ...
1
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2answers
104 views

Should I use one CSRF token per page or per form?

Is it safe to use one CSRF token per form on my page, ex: <form> <input type="hidden" name="token" vale="<?=$data['login_token'];?>" />" </form> <form> <input ...
2
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1answer
67 views

Will same-site cookies be sufficent protection against CSRF and XSS?

I must say, that I like this idea and it seems that it will bring a new form of protection against CSRF and XSS or at least it will reduce those attacks. So, how effective will this protection be? ...
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0answers
35 views

Security issue with CSRF token

My website has CSRF vulnerabilities. I have tried to mitigate the risk. Whenever users try to perform CSRF attack, they will be redirected to login page for re-authentication. On top of that, I ...
3
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2answers
61 views

Signing Double Submit Cookies, where the value is a pseudo random string and a signature of it. Is this more secure?

I'm not sure if I am describing something that has already been proposed. If not, I would like to coin this "Signed Double Submit Cookies" as a method to improve the Double Submit Cookies technique ...
0
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2answers
88 views

Website doesn't provide cookie (csrf token) when connecting over proxy. Why/how?

The Python code below should grab a "csrf token" cookie from Instagram.com, but I get an error message when running the program through any sort of https or socks5 proxy, informing me that the "csrf" ...
2
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2answers
56 views

What can a user do in order to protect against CSRF attacks?

If I'm browsing while I'm logged in into my hosting panel or router or any other application, there is a chance of being hacked by a CSRF exploit. So, the question here is about user or client-side ...
1
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0answers
37 views

Are Web Services vulnerable to CSRF?

I'm testing an android application, it uses web services for every action, so I saw the requests don't have tokens or another anti-automation mechanism, they just need to validate a token to identify ...
4
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2answers
81 views

Why would a modern browser allow internal resources to be loaded from an external page

Recently someone announced that several Arris surfboard models lacked any form of authentication to perform functions such as reboot and factory reset a modem with a single http call. Read more on ...
3
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2answers
114 views

Can CSRF protection work even if an XSS vulnerability exists?

Need for CSRF protection that withstands an XSS attack One of the big dangers of XSS is that it can often bypass CSRF protection and thus perform any action the victim can perform. If it would be ...
0
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1answer
83 views

Is JWT in cookies with any CSRF solution just as vulnerable to XSS as JWT in localStorage?

I've read that JWT tokens shouldn't be stored in localStroage because XSS attacks can read them. The proposed solution is to store JWT tokens in HTTPOnly cookies and use anti-CSRF w/ double-submit ...
3
votes
1answer
47 views

How does the same-origin-policy protect against PUT/DELETE CSRF?

I've read the OWASP guide for cross-site request forgery and it states that "other HTTP methods", such as PUT and DELETE could be theoretically used for CSRF. However with the same-origin-policy ...
1
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1answer
58 views

CSRF Prvention Token Mechanism: Back button Navigation

I have a legacy web application and need to prevent it from CSRF. I tried to resolve the issue without compromising application functionality and got issues related to navigation. The main concern ...
4
votes
2answers
57 views

Can an attack that does not change the server state be considered a CSRF attack?

From Wikipedia: A real CSRF vulnerability in uTorrent (CVE-2008-6586) exploited the fact that its web console accessible at localhost:8080 allowed mission-critical actions to be executed as a ...
3
votes
1answer
54 views

CSRF on login page

I have a CSRF Token on the login page, which works as expected. So when user has the login page open for a long time (the token has expired in the background). When they enter their login credentials ...
3
votes
3answers
177 views

Mitigating Login CSRF on 3rd party websites

I'm working on a project that requires to have a signup/login functionality exposed to partners who manage their own website. For some of these websites they reuse our own backend, and just change the ...
4
votes
2answers
126 views

Why are cookies considered more secure against XSS?

This article discusses storing session tokens in a cookie vs in localStorage: https://stormpath.com/blog/where-to-store-your-jwts-cookies-vs-html5-web-storage/ The article states: Cookies, when ...
1
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1answer
83 views

How specifically should I implement CSRF protection?

There are a ton of articles explaining what CSRF is and that I should use a CSRF token to prevent CSRF. A few of them mention details such as using SHA256 over MD5. However, none of them explain how ...
1
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1answer
74 views

CSRF in API calls from Javascript on the browser

I noticed tokens used in form submissions to prevent CSRF attacks, though in 2016 a lot of people are moving to JS frontend & restful API backends. I'm puzzled, with this approach is there no need ...
5
votes
5answers
181 views

Should I use CSRF protection for GET requests?

I've seen several blanket statements on the web to the effect that you don't need CSRF protection for GET requests. But many web applications have GET requests that return sensitive data, right? Then ...
2
votes
2answers
207 views

Is a JWT usable as a CSRF token?

I'm in need of a CSRF token, for a certain application that submits a form with POST. Ideally, I'd like to not make a DB call for each submission, to avoid storage and DB traffic & latency. To ...
1
vote
2answers
106 views

When should server side sessions be used instead of client side sessions?

From an information security perspective, when should server side sessions be enabled instead of client side sessions? From what I gather, "secure client side sessions" are cookies that contain data ...
3
votes
3answers
165 views

What CSRF attacks will 'First-Party-Only' cookies protect against?

The new 'First-Party-Only' cookie attribute: ... allows servers to assert that a cookie ought to be sent only in a "first-party" context. This assertion allows user agents to mitigate ...
5
votes
3answers
587 views

Can CSRF attacks steal log in information?

Sorry very new to security. If a user is logged into a secure site (credentials are SSN and a password) and then is victim to a CSRF, can their log in information be at risk?
3
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1answer
82 views

Could somebody explain how the ASDA site is vulnerable?

I'm sure many of you will have seen the CSRF exploit highlighted by Paul Moore that ASDA have known about for two years (Paul's blog) I am trying to find an explanation as to WHY the website is ...
1
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1answer
86 views

Security concerns of HTML echo endpoint

Consider a website with an endpoint that, when a payload of an HTML string (full document or partial segment) is POST to it, the server will transform the payload (and sometimes no transform is ...
0
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0answers
435 views

Avoiding Client impersonation with Rest Api

I'm sure that this use case has a known solution, but I can't find anything on google or I don't know which keywords to use. We are building an Angular app that is backed by a Rest Api. For ...
1
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1answer
236 views

Single Page Application session management

I have a Single Page Application which is fully HTML+JS+CSS (using frameworks such as jQuery and AngularJS) and a server side API using ASP.NET WebApi. The SPA is served in a server similar to a CDN ...
1
vote
2answers
131 views

Can F5's Big-IP ASM protect against CSRF for AJAX calls?

I know that F5's Big-Ip ASM offers protection against CSRF regarding links and forms. However, when it comes to AJAX calls their documentation is somewhat ambiguous. I understand that they DO NOT ...
-1
votes
1answer
91 views

Token in URL changes on click [closed]

Logging into OpenCart admin, I find a token in its URL: http://localhost/opencart/admin/index.php?route=common/dashboard&token=xOHq2UzQ0YwKTubXgxNpGFySmAA9W90z The synchronizer token pattern is ...
1
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1answer
49 views

Logout CSRF Protection [duplicate]

I am making a CMS and I have a CSRF protection in settings, new article. Should I also put this protection in the logout ?
4
votes
2answers
132 views

Prevent CSRF attack using regular expression, session storage, and auth token?

User login to my Web API Service using his user name and password. Web API Service response auth token to client browser. Client browser save auth token to session storage using JavaScript. Client ...
9
votes
2answers
61 views

Personal stylesheets

In reference to this question, I was researching whether or not there would be any security risks in letting users add their own stylesheets. He brings up a scenario in which a dev might use ...
4
votes
1answer
38 views

CSRF issues in “stateless” web app?

So I have developed a web application, which also has an API. API supports both GET and POST requests. The API is completely stateless, means nothing is stored or modified in a database/file when ...
6
votes
1answer
220 views

Alternative to anti-CSRF tokens for AJAX request (Same Origin Policy)

I'm working on a PHP website based entirely on AJAX (via jQuery). It's a single page in which all requests are made by AJAX. Related to the protection against CSRF I have encountered the problem of ...
1
vote
1answer
111 views

CSRF tokens in Single Page Applications (JavaScript/Angular)

I have an AngularJS SPA served by Apache on a cheap web host. All communication to the backend is via Ajax REST calls to an expensive cloud server running Tomcat. How can the REST calls be protected ...
0
votes
1answer
155 views

Exploiting CSRF PUT request

If the application uses RESTful communication, does it need to have CSRF protection for PUT and DELETE requests? As per my understanding its not possible to trigger a PUT request using JavaScript and ...
0
votes
1answer
65 views

Does creation of dump data would be considered as vulnerablity?

Problem behind the question : We were a small firm developing a small web application which was similar to fb,gmail,etc [in terms of functionality]. We have a signup form and I was assigned to test ...
1
vote
1answer
74 views

CSRF Encrypted Token Pattern — need for 'nonce'?

For anti-CSRF Encrypted Token Pattern, the OWASP page describes the pre-encrypted token as being composed of three items: the user's ID, a timestamp value and a nonce. The programmatic need for the ...
1
vote
3answers
61 views

Is there any danger from CSRF if a webservice doesn't impact server data?

I've been reading about CSRF and how it works, and, if I understood correctly, the 'only' thing an attacker can do is force the user to perform actions he didn't intend. I understand the danger if ...
5
votes
2answers
110 views

What to use as 'state' in OAuth2 Authorization Code Grant workflow

I'm using csrf protection in my web app. Now I'm planning to trigger a OAuth2 Authorization Code Grant workflow, starting with a static template opened in a new browser window using ...
2
votes
0answers
24 views

Why has the “Origin” HTTP header not been universally adopted? [duplicate]

After running tests on a few browsers on browserscope.org, I noted that neither Firefox or IE have adopted the "Origin" HTTP header. This header is a useful and valid way of helping prevent CSRF ...
1
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0answers
24 views

CSRF attack - Set custom CSRF Header [duplicate]

The title is a little bit unclear but I had no idea to describe the following issue in there. I found a vulnerability in a website where I am able to bypass the CSRF protection (Bug Bounty ...
3
votes
0answers
93 views

How does github.com implement CSRF mitigation

I had a look into CSRF recently. The recommended mitigation strategy is to implement the Synchronizer Token Pattern. When you look at the details, the question comes up how often these tokens need to ...
0
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0answers
33 views

XSS script syntax problem

I have a server running on port 4444 on localhost that just echoes messages it receives. I have a JS script embedded in a message that is supposed to send the cookies of whoever looks at it. Here ...
5
votes
4answers
121 views

How does a CSRF logout pose a potential threat to a website?

Websites like SuperLogout logs the user out from several websites at one go. I want to know in what way does this pose a potential threat to the users of the website? How can this be combined with a ...
2
votes
0answers
86 views

Is it secure to use one CSRF token multiple times?

I am new to the CSRF problem and I am studying how CSRF protection is implemented in popular applications like Facebook, Instagram etc. Now I am studying how CSRF protection is used in OAuth ...
1
vote
3answers
299 views

Need help understanding Windows Authentication mechanism

Even if I enforce HTTPS and use anti-forgery tokens, it seems like Windows Authentication could be inherently insecure because it does not require that the user explicitly passes credentials from the ...