Definition: HTTP - the Hypertext Transfer Protocol - provides a standard for Web browsers and servers to communicate. The definition of HTTP is a technical specification of a network protocol that software must implement. HTTP is an application layer network protocol built on top of TCP. HTTP ...

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81 views

Are MITM attacks possible on HTTP loopbacks?

I have a web server running at example.com. The web server performs a server-side request to example.com which results in a loopback, so the request never passes over the network. Is this request ...
1
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2answers
64 views

HTTP Header disabling non-SSL (or TLS) content on this page

Is there an HTTP Response header that disallows any non-SSL content from being displayed on the current page? The idea is some times external content that needs to be on the website (cough, ad ...
1
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3answers
116 views

HTTP authentication: identify the client

We have a web-site, where each user has to log-in to access a private area. Inside the private area, there are some information about the user, a profile, including some sensitive information (home ...
0
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2answers
121 views

Is the lack of https reason enough to abort form submission?

Preamble: Am in awe about the quality of both questions and answers on https / SSL on this site. My humble question below pales in comparison. Both on professional and amateur websites I've ...
0
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5answers
241 views

Are all URL shorteners unsecure/vulnerable?

The OWASP state that open redirect is a vulnerability: An open redirect is an application that takes a parameter and redirects a user to the parameter value without any validation. This ...
0
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1answer
70 views

Secure end-to-end when part of conversation must be over HTTP

We have a situation where a user's identity can be verified as follows: the network provider knows the identity of the user and injects secure headers into the HTTP request, which our servers can use ...
2
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2answers
460 views

Content-Security-Policy hash of script

<?php header("Content-Security-Policy: default-src 'sha256-".base64_encode(hash('sha256', 'console.log("Hello world");', true))."'"); ?> <script>console.log("Hello world");</script> ...
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1answer
138 views

HTTPS encryption and internet proxy [closed]

I'm not sure if this is the right place to ask this question. Please tell me, and I'll delete it. I want to modify a Word document hosted on my OneDrive account. I see that it is using a SSL ...
6
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3answers
1k views

Why can't we do MiTM attacks when using secure connection

I have this silly question that is bothering me. When not using secure connection (HTTP for example) cookies can be intercepted and used to connect to the site as if we have the id and password. We ...
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2answers
405 views

Why do we need WTLS?

Please excuse my probably gross misunderstanding of how all this works. I just started reading SSL & TLS Essentials by Stephen Thomas, and in chapter 1 he talks about how TLS is a separate ...
2
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2answers
226 views

Is HTTPS as secure or more secure than SSH if both have an IP address whitelist?

I'm wondering whether an HTTPS API endpoint would be as secure as or more secure than SSH. API Endpoint The API endpoint would require HTTPS The API authentication would use a POST'd API key. The ...
0
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2answers
54 views

Self signed certificate secure when just client sends sensitive information?

Is it secure to create a self signed certificate when just clients will send sensitive information to the server? After checking out the topic "What are the risks of self signing a certificate for ...
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0answers
261 views

Testing Basic Authentication with ncrack

I'm conducting some basic pen testing against a page protected with Basic Authentication. I've sucessfully tested with Medusa and Hydra but am struggling to get the syntax correct for ncrack. the ...
2
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2answers
130 views

On an “uncritical” site, is there any reason to NOT trust a self-signed certificate?

There are many sites that have self-signed ("untrusted" in Firefox) certificates. I then have the option to trust them or not. If I not trust them I can either leave the site or only visit the site ...
4
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3answers
129 views

Preventive security action in Android App

Currently, I'm developing a bank related android app. I would share my knowledge and also maybe you guys are more expert than me so you can add your ideas to the list. Bank is a very special client. ...
2
votes
2answers
354 views

What was the security vulnerability behind Box and Dropbox and what's different now?

Earlier today I received a number of comments saying that my shared links were disabled. I looked around and saw a number of articles explaining what happened, and Dropbox posted an official statement ...
4
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4answers
178 views

What risks are introduced by the browser passing the “referer” to the next site visited from a link to another domain?

As of today, I believe every major browser will by default reveal to a third-party site which site I came from, and more specifically, the exact URL I came from. What are the privacy implications of ...
0
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1answer
74 views

Sending GET requests to non-servers?

I ran a couple of wireshark runs for my computer and noticed inbound GET requests. Is it legitimate traffic for there to be GET request traffic inbound to my home computer if my home computer isn't a ...
10
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3answers
1k views

Is the HTTP TRACE method a security vulnerability?

I saw many posts here on this site dishing out advice on disabling HTTP TRACE method to prevent cross site tracing. I sought to do the same thing. But when I read the Apache documentation, it gives ...
3
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1answer
76 views

Can we detect malicious redirections by retrieving the webpage's headers? [closed]

Is it possible to know if there are URL redirections (to malicious websites) by retrieving the HTTP request and response headers of the legitimate website ?
4
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2answers
1k views

Securing remotely accessible IP cameras that do not support HTTPS

I have some IP cameras set up on my home network, which is WPA2 protected. These cameras are setup to be accessible from the Internet thru my router's DDNS address, and port number. So for example, ...
-2
votes
2answers
146 views

How to avoid session sharing inside the same network

I was thinking about a situation to avoid session sharing or hijacking, validating the IP the user logged in against the ip that is accessing any page after log in. It was working until I figured it's ...
0
votes
1answer
100 views

Do I need an SSL Certificate for a HTTP only site?

The cert for our public facing site is about to expire soon. Our site is entirely http. The site runs on SharePoint, and with SharePoint working with NTLM, the credentials that are passed over the ...
0
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0answers
86 views

Will http only cookie work while using chrome bandwidth saving feature in Android?

I am developing a site which uses http only cookies for authentication. By design[w3 standard] these cookies are XMLHttpObjects and will only be submitted to the domain they originated from to prevent ...
1
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1answer
82 views

How do you identify a website's form-type?

How do you know which attack method to use when using software like thc hydra, brutus, etc? e.g. http-get, https-get, http-form-get, http-form-post, etc? For example, for sites like Yahoo, Gmail, and ...
1
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2answers
123 views

How to prevent attacks before HSTS is established for the first time? [closed]

What is the best way to accomplish this and prevent attacks like SSL Strip?
0
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1answer
125 views

HTTP Status Codes - security considerations [duplicate]

I am designing an authorization framework and now I am thinking about the error codes which I should return when someone is trying to access a resource and he doesn't have the required permissions. ...
0
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2answers
440 views

Why don't more websites implement Perfect Forward Secrecy?

From what I understand, all it takes to enable PFS on a webserver is adding ephemeral cipher suites (ones that use DHE and ECDHE for the key exchange) to the list of cipher suites used in SSL/TLS ...
2
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2answers
126 views

How to prevent popping up a login dialogue using a malicious hotlinked image and HTTP Basic Auth header?

While using Firefox to browse my forums, I noticed that a malicious user posted an image (via hotlinking, not by uploading to my server) with the extension .png which complies with the forum rules ...
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1answer
56 views

Detect xss from httprequest and response

I scanned my site using a tool that detects xss vulnerabilities. As a result, the tool generates a report that contains httprequest and response of vulnerable pages. Now my question is how this ...
1
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2answers
141 views

How Web-proxy and Virtual-Hosting are complications for HTTPS?

While studying HTTPS and related transport layer security protocols(SSL/TLS), I came to know that HTTPS suffers from two complications - Web-Proxy and Virtual-Hosting. I can understand how ...
2
votes
3answers
416 views

Does http support encryption without https (like STARTTLS)?

Does http support encryption without https, akin to STARTTLS in smtp? This may sound like a stupid question, but just think about it. Banks require strong encryption, and cannot do business without ...
0
votes
3answers
162 views

HTTP/HTTPS on the same site

Suppose a site allows connection to be established with HTTP or HTTPS .If you establish a connection to http://www.example.com or https://www.example.com then all further link's on the page displayed ...
3
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5answers
288 views

Free SSL Certificate when encryption is needed and not trust?

My understanding is that SSL certificates are expensive because you are paying a 3rd party to vouch for your identity, and apparently the most secure form of trust is the trust you have to pay for. ...
3
votes
3answers
198 views

If an attacker has the ability to modify data transferred over an Internet connection, can he or she affect TLS?

Now that Google, Twitter, and some other sites require a TLS connection to access their sites, when you go to http://www.twitter.com it redirects to https://www.twitter.com/. If an attacker had access ...
2
votes
4answers
247 views

Why aren't we all compromised on the internet?

Well, I've been thinking about this for a while now. Within the last decade, we've used various ways to make our websites look dynamic and live. For example, in JavaScript, it's quite easy to send ...
1
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3answers
149 views

Https forms on tens of domains

What is the optimal way (cost-wise, too) to secure page forms (https) on a large number of domains&subdomains? Are certificates required for all domains? Is putting all the page forms on a single ...
2
votes
3answers
172 views

Is it secure for a site to serve the login page with HTTP, but have the actual site in HTTPS? [duplicate]

On some websites, the login page (where you enter your login details) is served by a regular HTTP connection with no encryption. However, once I login, the page immediately switches to a secure HTTPS ...
1
vote
1answer
106 views

Suspicious http requests in my logs: *.html/RS=^

I see some strange (suspicious?) http requests in my webserver. Example: 192.161.x.x - - [14/Mar/2014:21:55:36 -0300] "GET /ce/c02i.html/RS=^ADAD3F3nOTvuESWLtAiP39aTQZiSRQ- HTTP/1.0" 404 881 ...
0
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1answer
190 views

CAPTCHA Bypassing with Captcha Clipping Attack is Like MiTM between servers, Is that even Possible?

Sorry if this is a very amateur question. I was checking out some article regarding CAPTCHA bypassing. And I though this article seemed interesting ...
33
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5answers
4k views

Why do some websites enforce lack of SSL?

When trying to visit https://www.ebay.com, I noticed that I get redirected to HTTP immediately. Here's what cURL says about that: $ curl --max-redirs 0 -v -L https://www.ebay.com * Rebuilt URL to: ...
2
votes
1answer
62 views

Danger of having my website make arbitrary web requests

I'm setting up a small code-hosting web site, in the vein of github or bitbucket. I would like to allow users to specify an arbitrary URL from which my site's server will initially clone their ...
8
votes
1answer
174 views

How to force “expensive calculation” when clients connect to my server?

Page 183 of Secrets & Lies on countering denial-of-service attacks: Some researchers have proposed defenses that force the client to perform an expensive calculation to make a connection. ...
0
votes
1answer
438 views

Should Access-Control-Allow-Origin need to be domain specific

Infosec has recommended us to use this header : Access-Control-Allow-Origin:http://domainA.mycompany.com,http://*.mycompany.com But I also own domain : http://domainB.mycompany.com So, if i just ...
1
vote
1answer
158 views

Legitimate use case of man-in-the-middle attack for DPI?

I am working on a device that should sit between the end-user and the server, and that will do deep packet inspection. It is basically a parental control node. This device will be sold to the user, so ...
1
vote
1answer
64 views

Can I reliably identify Apple devices that have not patched against the gotofail vulnerability based on user agent string?

The title pretty much says it. Do the security patches to address the gotofail security issue in multiple Apple products employing SSL change the User Agent string for the respective systems? And, of ...
0
votes
2answers
460 views

Is SSL a mitigating factor for HTTPonly not set on cookies?

I have a few sites that are using HTTPS (no mixed mode HTTPS/HTTP). The cookies do not have a HTTPOnly flag set. They do pass along session IDs. Also some of the sites do not have a "Secure"flag set ...
0
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1answer
41 views

How could a comments plugin be securely loaded from domains people are already logged into?

The fundamental idea is to load a blog comments plugin (like Disqus) from a domain someone is already logged into to save users time and increase engagement. I like the facebook comments plugin ...
1
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3answers
1k views

NGINX Hacking Attempt

Every time I start my test-server and let it run for some days I get this in my log-files (in different variations): 111.241.26.165 - - [18/Feb/2014:22:16:45 +0100] "\x04\x01\x00\x19\xCBER!\x00" 400 ...
0
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1answer
203 views

Can closing port 80 lead to more security?

If a website is running on HTTPS only, is it reasonable to close port 80 of the web server and only leave port 443 open? Does this action provide more security for the website?