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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2
votes
2answers
744 views

Exploiting HTTP content in HTTPS page [closed]

I recall hearing there is a range of attacks one can mount against a page which mixes HTTP and HTTPS loaded content (say, https://Secure-Site.com loading an image from http://Not-A-Secure-Site.com) ...
16
votes
8answers
2k views

Should a site have SSL if it doesn't have a login form?

We have a site at work that is used for the following: Our homepage, which is just some info and contact info. Job applications are also handled on our site. There is no place where you can login ...
6
votes
5answers
2k views

SSL/TLS - Distinction between self-signed cert and self-signed CA, and other questions?

I have a small personal website which I wish to serve securely over HTTPS. At the moment I do not wish to use a third party CA to sign my certs. I was reading this document on generating a self-signed ...
-2
votes
1answer
432 views

Are GET parameters secure over https? [duplicate]

Since GET parameters are passed in the url, how can they be secure from someone with access to network logs. He would be able to see what urls are accessed, even if he cannot see the request and ...
0
votes
4answers
3k views

How is HTTP PUT and DELETE methods insecure, if they really are? [duplicate]

If I really need to use these methods, how do i make sure they are secure? Edit: Is there a link or source where I can see how to make sure that 'PUT' and 'DELETE' methods are not able to delete or ...
1
vote
3answers
170 views

How can someone access data that I am requesting when I use HTTP?

I have heard that HTTP use plain text communication. If it is so how can a hacker or someone tap it. From my little knowledge I know that if we sent a request to a web server it replies back to us ...
7
votes
3answers
2k views

Detecting Tor proxy by reading request headers

I am a newbie to the field of security. As I was trying to explore more about HTTP request and response headers, I came across this website which provides a detailed analysis of the request header ...
1
vote
3answers
555 views

ModSecurity errors related to REQUEST_METHOD HTTP/1.1 and GET

I asked my host to switch on the log file, and it have increasing a lot since then. Its have been increasing with 700 mb for the last week. It’s filled with error messages related to Mod Security. ...
20
votes
11answers
5k views

Prevent my site from being copied

Is it possible to protect my site from HTTrack Website Copier or any similar program? Without setting a max number of HTTP request from users.
4
votes
2answers
7k views

Specific risks of embedding an HTTPS iframe in an HTTP page

I need help listing the specific risks of embedding an HTTPS iframe that enables credit card checkout inside of an HTTP page. Are there security issues with embedding an HTTPS iframe on an HTTP page? ...
2
votes
1answer
410 views

Are there any vulnerabilities when making cross-domain HTTP requests during an SSL connection?

I recently starting using the Calomel SSL Validation plugin for Firefox to test the SSL security on the sites I visit. When navigating to American Express' log in page, I noticed Calomel reports the ...
8
votes
1answer
316 views

Build a secure channel without SSL/TLS

I'm looking at possible options to build a secure channel between multiple embedded devices with limited cryptography capabilities and an HTTP server (It could be some sort of web service). 1. ...
2
votes
1answer
161 views

HTTP Basic Auth is enough?

I have WebSVN, Gitlab and phpMyAdmin hosted on my dev server. Now, all of it, I password protect the pages (not their individual login) using HTTP Basic Auth, is this the best practice that I can do?
5
votes
3answers
920 views

Is it possible to pass TCP handshake with spoofed IP address?

Little time ago, me and my friends argued if TCP handshake can be passed with a spoofed IP address. Assume I have a https web server that allows only admin's IP numbers. Can anyone connect that web ...
-1
votes
1answer
129 views

Who can view my https browsing habbits? [closed]

I was wondering about HTTPS security and how easily is compromised. I have already read the similar threads in here, but I have some more questions: Let's say I am searching something at Google. ...
1
vote
2answers
1k views

How secure is using a blank index.html / index.php? [duplicate]

When you put a blank index.html into a given directory on a web server, web browsers will not display a file listing for that directory. But is it secure enough for other purposes other than ...
6
votes
5answers
463 views

Is including a secret GUID in an URL Security Through Obscurity?

I know that this question is a little bit on the side of Opinion/Discussion, but I think there's a provable answer to it. I think the common view of "Security Through Obscurity" is that the security ...
4
votes
2answers
2k views

CSRF protection and Single Page Apps

I am in the process of writing a thick client web app using Angular.js (single page app) and was wondering what are the best practices for securing the app using a CSRF token. Should I send a CSRF ...
20
votes
6answers
3k views

Malicious Links that Respond to Browsers but not curl or wget

There are some emails with links to people's cracked websites with a malware download Like this kind of email: fake DHL pack station email ... the links often take the form of: http:// ...
-1
votes
1answer
242 views

Wireshark Decode HTTPS Root Certificate

I'm currently dealing with a "Sniffy" java application. Well I can see it connecting to some kind of server using HTTPS. I would like to see what its sending or getting over HTTPS. i have read some ...
5
votes
3answers
3k views

How can I block an IP, if I'm getting many http requests in a second?

If some one tried force burst attack on my website, how can I block them? Ideally, I want to block an IP if I have many http/Apache requests in a second.
3
votes
2answers
682 views

How can I implement authentication in my proxy server?

I have a proxy server, it will have a captive portal page. Users will be required to sign in before gaining access to the internet. So far I am aware of IP and/or MAC address based authentication. ...
1
vote
1answer
131 views

Simple and secure remote installation method that accepts input via a web page?

When installing software on a remote server: Is it possible to let the admin (i.e. the user that installs the software) define admin username and password via a HTML page, in a secure manner? ...
4
votes
2answers
624 views

I'm being followed on the web. Explanations for mysterious behavior

Am I being stalked? I was recently doing some basic Python development scripting. Python has a nice feature where it can run a simple HTTP server that serves the contents of the local directory, on ...
-1
votes
2answers
546 views

Allow embedded videos while keeping youtube blocked [closed]

Our organization has launched a training program for employees. the hosting server(internal), has YouTube videos embedded. we have YouTube blocked, and employees access the internet via proxy. How can ...
6
votes
1answer
124 views

Are there any situations when one can only mount a passive MITM?

This came up while discussing Web & insecure HTTP - Using RSA for encrypting passwords on the client side Is there any such situation possible when requesting an HTTP page where an attacker is ...
4
votes
1answer
1k views

If SSL encrypts urls, then how are https messages routed?

I've googled around and it seems like SSL encrypts URLs. (Correct?) As I understand it, if I go to a site like http://security.stackexchange.com then a DNS server looks at the URL, says hey, he wants ...
2
votes
4answers
408 views

How to identify the Java program that is maliciously accessing my web site from many client addresses?

For many years, my personal web site receives numerous pairs of hits that look like this, every day: 202.xx.xx.xx - - [22/Apr/2013:12:02:26 +0000] "GET / HTTP/1.1" 200 5923 "-" "Java/1.4.1_04" ...
16
votes
3answers
711 views

Vulnerable code suggested on OWASP?

Session Hijacking Prevention It is good practice to bind sessions to IP addresses, that would prevent most session hijacking scenarios (but not all), however some users might use anonymity ...
8
votes
3answers
699 views

Is it possible to “protect” against MITM attacks over HTTP?

In a conversation on twitter I warned a site about a security vulnerability. Specifically, the possibility of a MITM (Man in the Middle) attack used to compromise their registration form. The ...
31
votes
9answers
1k views

Use additional “password” in Referer to hide private site?

I have a private (= I'm the only user) site at example.com/private/. Nothing else is published at this host (it's my domain). I don't want anyone to know that there is anything at example.com, ...
4
votes
7answers
2k views

Is it compulsory to have https on e-commerce site?

I saw that some e-commerce scripts can also run without ssl, but everyone recommends to activate it to protect sensitive data. I just saw a site that has an e-shop link, if i click it my browser says ...
1
vote
1answer
163 views

Following redirects from HTTPS to HTTP - Secure?

So I have an HTTP client which supports HTTPS. However, it doesn't follow the HTTP spec recommendation for redirects on POST(which is to ask the user before redirecting) This means, in theory, if you ...
-1
votes
2answers
387 views

Keyloggers and Email Accounts [duplicate]

This morning, I was experimenting with some keyloggers and noticed that they have a feature to send e-mails to the attacker. How can these e-mails be intercepted? Let us say that I have a packet ...
0
votes
1answer
638 views

What are the ports used by Online Email Accounts such as Yahoo Mail, Gmail, etc.?

Let us say that I send an email using Yahoo Mail or GMail. Can this email be intercepted using a packet sniffer? On which port does the email travel? HTTP, SMTP, POP3?
2
votes
1answer
609 views

Web service HMAC authentication/anti-replay

I am creating a web service, which handles various requests from web clients. The client and server share a big secret key S, and when one part wants to send data, it calculates the token as follows: ...
3
votes
1answer
5k views

How does DHE-RSA-AES256-SHA compare to RC4 as the Cipher for SSL?

I read a lot of issue [1] currently stating that RC4 is broken and is at risk. I just checked my web server (nginx) and it is using the default settings, which is DHE-RSA-AES256-SHA How does this ...
1
vote
1answer
3k views

Web Applications (http): Don't get how token based authentication is secure

See something like this: http://stackoverflow.com/questions/10826293/restful-authentication-via-spring/10864088#comment21706215_10864088 Or more specific: Token-based authentication - Securing the ...
73
votes
2answers
37k views

What is the difference between https://google.com and https://encrypted.google.com?

Is it there any difference between the encrypted Google search (at https://encrypted.google.com) and the ordinary HTTPS Google search (at https://google.com)? In terms of security what were the ...
5
votes
1answer
126 views

What's the risk in putting semantically meaningful data in an HTTP session identifier?

I'm currently looking at performance optimization and am considering a way of speeding up cookie based session handling. There are advantages to having a session identifier in place when there is no ...
3
votes
3answers
967 views

HMAC What is secure manner to distribute shared secret between client and server?

I am looking at ways to secure http communication using HMAC. My understanding is that in this scenario the client and the server both know a secret. This means the secret must be first generated on ...
1
vote
2answers
177 views

Is it bad practice to send decryptable data?

If I'm authenticating an action, is it a bad practice to authorize the connection using a decryptable hash that does have a specific algorithm, but only the remote machine knows? Is sending ...
16
votes
4answers
940 views

Credit card forms on HTTP pages a MITM risk?

The other day, there was a web developer mailing list thread about a fundraiser page. One person noted that the page with the credit card form was HTTP, not HTTPS. In response, one person said that ...
2
votes
2answers
94 views

Actual issue? Phone switches from 3G to router makes session switch from https to http

I heard that a security issue exists in some cases when a mobile phone has: Connected to a website via https via 3G Connects to a router I'm told that that in this particular scenario the router ...
2
votes
2answers
322 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. ...
8
votes
4answers
2k views

Can URLs be sniffed when using SSL? [duplicate]

I know that http requests can be sniffed, so sniffer can see the requested URL from the victim. So 2 days ago I my bank made me a web-account to see, send money etc... The thing I saw is my session ...
4
votes
4answers
257 views

Security risk of adding a HTTP Header with server identifier

We are about to deploy a web application to a web farm of quite a few web servers. During our testing we have found issues happening in one of the servers but not in others. Most of them because of ...
9
votes
5answers
1k views

Apache/Linux server, DoS attack from own IP

I have an unusual problem I've been trying to diagnose for a while: It's about a Debian server running a custom compile of apache 2.2 with PHP, Red5, MySQL 5.5 (standard binary), sendmail (distro ...
1
vote
2answers
485 views

Secure against HTTP FLOOD ATTACK

What is the best way to defend your web site against HTTP FLOOD POST/GET ATTACK ?
-3
votes
2answers
249 views

Cannot use HTTPS or download stuff from sourceforge with a mac, what kind of soft does that? [closed]

I'm at a public library (france). I have a http library login to access that wifi. I just want to download some SFML zip to make some app, but many things are blocked, mainly https. I can't even ...