Questions tagged [http]

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 clients (such as Web browsers) and servers communicate via HTTP request and response messages. The three main HTTP message types are GET, POST, and HEAD.

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How can I properly secure the WiFi setup process of an IoT device?

My company develops a WiFi-connected IoT product. I want to make sure that the process of getting the user's WiFi credentials into the device is as safe as possible. At the moment, the product is in a ...
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WiFi Fingerprinting RFC2617 Linux Device Cannot Unauthenticate Unless AP Password Changes

There is a Cisco WiFi Access Point in the office that is intended for guests. It is an open network in that you can associate without providing a password with the SSID. It supports RFC2617 and so the ...
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Cross Origin Resource Sharing question

I have some mockup html/javascript on my desktop, I made an ajax GET call to: http://www.bungie.net/platform/Destiny/TigerPSN/Account/4611686018429149347/Character/2305843009215132906/Activities/ ...
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How Can Exploit Xss and Sqli via HTTP Verb Tampering?

I was reading a paper about 'HTTP Verb Tampering' here: https://blog.jeremiahgrossman.com/2008/06/what-you-need-to-know-about-http-verb.html The author said: 2) HTTP Verb tampering is generally ...
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Bruteforce https post using single tcp connection

So I've tried bruteforcing my server using thc-hydra's https-post-form, but it floods the server very quickly and the requests start timing out. However, If I go through the browser where the HTTP ...
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800 views

Bettercap 2.x SSLStrip Is Not Converting Links

I posted this before. I am creating a new post because of all the changes I would need to [edit] out. I have the latest version of bettercap. I have the latest version of Kali Linux using the latest ...
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Clickjacking vulnerability of file attachment downloads?

A portion of our system exposes an HTTP file handler that transmits a file to the client provided that authentication and file ID are correct, and no response if not. The ASP.net server this is ...
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162 views

Random Alphabetical String Added to URL

I originally asked this question over at Stack Overflow, but someone there suggested asking here because it might be possible that something malicious may be causing the following issue: Users have ...
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1k views

how to fix Out-of-band resource load (HTTP) issue identified by BURP scan

I have Salesforce application which is using my web application hosted in one of our customer's server (IIS 8.0). BURP Scan has identified one issue in my web application. Issue is something like ...
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182 views

Assymetric auth like AWS4-HMAC-SHA256

I wondered if there exists a defined mechanism similar to AWS4-HMAC-SHA256 (as a scheme in Authorization HTTP header), but using asymmetric algorithm, probably ed25519, and how secure it would be to ...
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577 views

HMAC authenticated API calls with multipart/form-data file uploads

We have an existing API where 3rd parties can push data. The API calls are authenticated with HMAC using the same scheme as described in Ruby's ApiAuth library which I use to verify signed requests. ...
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61 views

Http Content-Length too long - Time Out

I was recently going through the HTTP Desync attack presented here: https://portswigger.net/research/http-desync-attacks-request-smuggling-reborn This raised one question concerning the way the HTTP ...
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1answer
223 views

HTTP request smuggling, basic TE.CL vulnerability

Im trying to learn about http request smuggling and Im trying out the labs for burp suite. Im stuck on the TE.CL vulnerability, Ive clicked on the solution (see below:https://portswigger.net/web-...
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1answer
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Is this a threat if website to connect to is in clear in the TLS SNI extension or when using an HTTP proxy?

As per my understanding, after the TCP three-way handshake we send a TLS ClientHello which has the SNI field in clear text and anyone can see which website I am trying to connect to. Isn't it a ...
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50 views

Cross site security for public REST API

This seems a common use case, but I have not been able to find a satisfactory answer. We have a public REST API, which we want 3rd parties to be able to write their own Progressive Web Applications ...
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59 views

Security risks on returning encrypted JSON web token without prior authentication

I am architecting a passwordless REST API where public/private keys are the primary form of authentication. In order to create a new session you must prove that you hold the private key to the public ...
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1answer
39 views

Securing implicit tokens (Example: Moltin)

I'm fairly new to security but I'm trying to understand how companies have their APIs set. One such case is Moltin's Implicit Token. Basically they provide you with a read-only (for the most part) ...
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101 views

How to limit web API microservice communication to specific list of machines?

I have an PHP API that I want to be consumed only by one static website. However the HTTP is not secure as from what I suspect any header can be spoofed (IP - I may be wrong here, domain name, and so ...
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61 views

How is Indonesia blocking images in e2ee applications?

Indonesia's minister in communication and informatics supposedly blocked the sending of images and videos through social media from 22nd May until 25th May, in order to prevent hoaxes from spreading ...
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HTTP body E2E encryption protocol

I have 2 servers that communicate each other in HTTP and they are both behind an API gateway. Between the servers and their API gateways the communication is in HTTPS with mutual authentication using ...
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35 views

Origin VS Authority and Domain certificates and Unique IPs

Disclaimer, I am new to InformationSecurity, so sorry if I not following rules as good as expected. I asked this post on stackOverflow, and I was suggested to transfer it here So far I get: Origin = ...
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222 views

How to bypass NTLM HTTP authentication?

Is there any way to bypass HTTP authentication rather than brute-forcing ?
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56 views

Bloom filter to prevent replay attacks in signed HTTP requests

I'm thinking about an authentication sheme of a REST API in a setting where the only thing the server stores about a client, is their public key (the asymmetric encryption scheme should not matter). ...
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172 views

Hide data from wireshark on localhost

Assuming you're working with an old network protocol, or insecure/unencrypted protocol (HTTP for example), is there a way to make it difficult for network sniffers from capturing the packets? An MITM ...
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92 views

Security of AWS Lambda Communicating to Non-HTTPS API

Wondering what attacks might look like in the following scenario. I have a web service that pings an AWS lambda (behind API gateway), which makes a couple of transactions (sends email, adds to ...
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Why doesn't a CORS preflight request cause another?

According to MDN documentation, every non-simple request is doomed to fall into an infinite recursion: I want to send a non-simple CORS request (with the verb PUT e.g.) My browser tries to send a ...
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367 views

THC Hydra false positives on Foscam login

I bought a Foscam C1 Lite this week and I want to try to brute force the login page with THC hydra. But currently I am getting false positives with the following command: hydra -s 88 -l user -P ...
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222 views

Invalid certificate error appears on my web server for 10 minutes and then disappears

I have a raspberry pi that hosts a web server and has a DDNS registered through no-ip. I just had an issue connecting to my webserver because a certificate appeared to be installed on this server that ...
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Concerns when passing all OPTIONS requests through authorization proxy gateway

I have a React based application which uses RESTful services on backend distributed on private network. To communicate with such services using AJAX, client application sends all its request through ...
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726 views

HTTP security headers for native and webview based mobile applications

OWASP Security Headers Project recommends the following security headers for web applications. Out of the following which headers are relevant to mobile applications? HTTP Strict Transport Security (...
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No fields captured in BurpSuite

I am using burpsuite to bruteforce my routers login form, but I have encountered an issue... When I enter something into the password field, BurpSuite shows the request, but not what was entered. For ...
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135 views

Is the appearance of “Action Not Found” and a list of tried URIs a security concern in Play?

The Routing in Play documentation has been read and multiple code samples have been run including this one. When one navigates to an unknown URI it returns a list of tried URIs: Expected outcome The ...
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174 views

Bizarre HTTP requests to VPS, former malware command and control server?

I just bought a new VPS with Linode. I installed Apache and noticed some very strange behavior that I have been seeing consistently throughout the logs. So basically, I keep receiving stranger HTTP ...
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220 views

MAC spoofing under a OPN Access point HTTP does not work

I want to do a demo on the wifi security. So, I have one Wifi router and two client. I configured my router without security (OPN) and with a MAC filter. One of the two client is connected to the ...
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53 views

Transmitted sensitive user data

At the moment, I have set up mitmproxy and can record all HTTP/HTTPS communications between the client and server. For research purposes I am looking to find a way to detect potential leakage of ...
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iSniff-GPS: Certificate Verification

iSniff-GPS I came across an interesting sounding project on GitHub, called iSniff-GPS. I decided to check it out, but i experienced some issues when trying to use the web interface. Instructions ...
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Is there a “smart cache” device which provides cache if authorized?

Is there an implementation of a HTTP (or decoded HTTPS) optimization device which would allow for "smart caching" - i.e. the ability to release some cached content (initially transferred by someone ...
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Can user identifying information in Dropbox be derived from subscription data?

I've noticed that my Dropbox installation really loves sending unencrypted information over the net including a "user_id" and it's user-agent. What i want to know is if it's possible at all to ...
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Is my approach to anonymous certificate based HTTP(s) authentication and secure private messaging sound?

I'm trying to work out a somewhat anonymous secure messaging system, and was hoping someone could validate my overall approach. Keep in mind, this all takes place over HTTPS. Authentication While ...
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Linux Hydra issue - random correct password success

I have an issue with Hydra when I use it. I have tried the same command lines given in guides directly supported by the Damn Vulnerable Web Application (DVWA) v1.8. Ok so.. here is my attempt output....
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1answer
829 views

How to filter secure (HTTPS) websites by URL with regular expression?

I need to block access to certain pages on a website using regular expression and/or wildcard. The site uses https and therefore cannot be blocked using regular parental control filters (this is ...
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52 views

Security Considerations To Account for When Redirecting From Microservice to Another

I am evaluating the above service design where I want to have mechanism to pass a user through multiple microservices. In this simple example, the user goes through a sign-up process and once done, ...
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1answer
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Signing webhooks: symmetric vs asymmetric

I want to sign webhooks so that client services can verify that a request came from my service. Looking around, it seems that most SaaS use symmetric keys shared by the client and the SaaS. Obviously,...
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Method to bypass \n in WAF (\n vulnerability)

I have this application that has an input box where the data is going to be sent in a JSON format. The JSON payload might look like this {“message”: “hello\nmy name is andi”} But the problem is the ...
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Deserialization Opportunity?

I have minimal experience exploiting deserialization vulnerabilities and I am working on and I have identified the following URL endpoint. This is it URL Decoded: /Account/Register?Count=0&Keys=...
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Is it OK to use HTTP for internal communication between two micro-services deployed on AWS ECS fargate?

I have micro services deployed as AWS ECS Fargate containers. For internal communication they are using service discovery end point. In my opinion, it is OK to use HTTP for internal communication. ...
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How to read SlowHTTPTest range attack when Nginx is the server?

I'm running an application hosted on Firebase and did some tests using SlowHTTPTest. For SLOW HEADERS, SLOW BODY, and SLOW READ the output is quite similar, i.e. the service is available which makes ...
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Should I hash responses from server?

I am hashing all requests to my server with a secret token known by only the server and my mobile app to prevent malicious apps from using my servers. Should I also do this on the responses from the ...
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How does Google restrict API access by mobile App ID?

Google Cloud Platform API service has an option to restrict API access to specified iOS bundle identifiers. How is Google able to accomplish that since any mobile clients can easily spoof the bundle ...
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Can I intercept and impersonate a server over an HTTP wireless connection?

Let's assume I have a strong enough antenna at exactly the same frequency as the victim. If it sends a request over unprotected http to the router, could I then listen to that request and respond to ...