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Questions tagged [http-proxy]

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84 views

SNI leakage prevention with proxy

In TLS 1.2 / HTTP(S) context, plaintext target hostname could potentially leak in 3 different ways: In DNS query prior to TCP/TLS/HTTP connection. In TLS handshake, ClientHello message, in SNI ...
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1answer
55 views

Does Forcepoint Security Manager 8.5 (WebSense) allows SFTP petitions?

Can I use Forcepoint Security Manager 8.5 (WebSense) as an http proxy for my SFTP client connections to external Servers? Currently when doing http requests I'm able to specify an http proxy to fetch ...
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1answer
32 views

Online platform control (proxy)

To connect to the online platform of the company I work for, I have to use a proxy. Is it possible for the person responsible for this platform to check if I am currently using other programs in ...
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72 views

Basic authentication after mTLS?

I work for a software company and I'm currently doing research for an enhancement request. Essentially we have a application client which talks to a rest end point which is authenticated using basic ...
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1answer
103 views

Whats the point in setting up an open proxy?

Decided to have a look at a list of "open" proxies. I've noticed that a good deal of these proxies are on residential IPs. One of the IPs, 68.188.59.198, is owned by Charter Communications ...
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59 views

Should I strip the "Origin" header from client requests?

I'm trying to setup an nginx reverse proxy to a web product I can't modify (it's an appliance). Client --> https://myapp.com --> nginx --> https://10.1.5.9 I managed to do so, but it ...
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0answers
52 views

http smuglling how can i do a poc in a big websites?

i try to find http smuggling in big bug bouny program if i send this to the server POST /path HTTP/1.1 Host: subdomain.domain.com User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 ...
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1answer
72 views

Is it possible to completely obfuscate proxy servers?

Stripe's fraud detection documentation claims it has Proxy Detection When I search for how it might be detecting traffic from proxies, I see this great answer, which show how to detect that traffic. ...
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2answers
379 views

What does using a VPN offers over HTTPS + DoH in terms of protection?

What are the security risks that someone using HTTPS (everywhere) + DoH is vulnerable to, comparing to someone using a "trusted" VPN?
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1answer
140 views

Is it worth using an http proxy?

Sorry for my lack of terminology in the field, that's something I've little (or none any) practical knowledge about. I've browsed similar questions on the security risks of using (web) proxies, but ...
10
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1answer
933 views

Is basic HTTP proxy authentication secure?

I have been looking for cloud based proxies, and I notice that it's very common to authenticate to a proxy using basic auth over an unencrypted connection. I don't understand why this is considered ...
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1answer
53 views

Is it possible to view the cipher suites offered on my behalf by a MITM proxy?

I'm trying to discover what cipher suites are being offered by my corporate proxy. It's set up as a man in the middle so my "secure" connections are to it, and it attempts to create a ...
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3answers
2k views

Intercept HTTP Traffic of an android app?

I was trying to test and intercept traffic from an app developed on Rhodes open source framework, I setup a proxy with burp, and of course I have installed burp certificate on my device hence I can ...
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1answer
1k views

Verifying client certificate by passing client cert in the header

I'm implementing client certificate authentication. My server is behind a proxy to which I have no control of. And also I don't have any control over the client side communication. During every ...
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0answers
63 views

Can server-side caching misconfiguration lead to stolen logins?

If a webapp sends Cache-Control: private it shouldn't be cached for example with nginx proxy_cache. What could happen if it was cached anyhow? Could another visitor see the personalized login of ...
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122 views

Burp not intercepting live video stream

I have set up Burp proxy to intercept requests of an Android app. I am able to intercept app API calls except for live video streams. I am not aware of how the video stream is implemented but assuming ...
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0answers
287 views

Monitor HTTPS URL logging of a specific device of a Network

Goal The main goal is to monitor all the URL logging (HTTPS) of a specific device in my Network. So I’m decided to buy a Security tool WifiPineApple from Hak5 store. Ex. Alexa, Chromecast, and maybe ...
1
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1answer
596 views

Private ip address revealed by nginx, should I worry?

I run nikto on a server, let's say www.example.com and it says the following: OSVDB-630: The web server may reveal its internal or real IP in the Location header via a request to / over HTTP/1.0. ...
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0answers
333 views

A mesh of Cookie in Header & HttpOnly token - secure "enough"?

This is another attempt of mine to make sense of securing my web-app, which is built with two frameworks: Django REST API - serves as the backend. It generates both a token upon correct login, and a ...
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3answers
319 views

Is it possible to scan the whole IP range to find a domain behind the CDN?

I am very curious if it is possible to find the real IP address of a domain "protected" by a CDN service. For example, www.cnn.com uses Fastly service, and the domain name only resolves to a Fastly ...
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0answers
594 views

How can I proxy traffic of macOS Mojave APPS using Burp Suite?

If I do a web search for proxying macOS apps using Burp Suite, I don't get any useful info. Instead, I get dozens of results talking about how to proxy iOS or Android apps. I am talking about desktop ...
2
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1answer
222 views

Is there a difference between editing HTTP messages manually or with burp for example? (WebGoat HTTP intercept exercise "problem")

I am diving now into WebGoat, there's this little exercise in the "general" tab calle d "http proxies" which asks you to use zap/burp to intercept and modify a request, this is what is being us asked. ...
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0answers
140 views

Am i being MITMed?

Lately i was experiencing weird behavour from some big websites. More specifically, when i normally tried to connect to facebook, i would be greeted with this login page: I have placed these with ...
2
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0answers
64 views

Benefit of authentication with a gateway

Given... a public web service with enabled SSL/TLS the web service enforces authentication using JSON Web Tokens a client on a LAN without an Internet connection a proxy on the LAN that grants point-...
2
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1answer
99 views

Secure GET-based remote API access via PHP

I am programming a way in PHP for my users to be able to access a remote API though my website. I was wondering if any of you had some input on whether or not this was secure (NOT considering any ...
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2answers
777 views

Is it possible to tunnel my whole linux machine through http proxy? [closed]

For some reason i access my internet through a HTTP proxy. Is there a way to tunnel my whole Linux machine (currently am using ubuntu 18.04) through http proxy. If i change proxy setting in the ...
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2answers
2k views

SSL handshake not visible in Wireshark

In my organization we have a cloud proxy that work on a loopback address. The vendor of this proxy has deployed an app on our machine which listens on the loopback address. I have captured the apps ...
2
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1answer
404 views

SSL MITM Proxy Security - Can we rely on it?

In my organization, we have an SSL MITM (Man-in-the-middle) proxy (like ZScaler proxy). If I browse an HTTPS website and check the certificate, I can see that the proxy has issued a separate ...
1
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1answer
95 views

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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0answers
309 views

Can charles proxy (with root cert installed) intercept and read all traffic between mobile app and server? [duplicate]

I have a mobile app that queries various 3rd party API/sites (these are https links). I have a concern that SSL proxies (e.g. Charles) can be used to intercept the traffic - man in the middle. Are ...
1
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1answer
185 views

URL rewrite spoofable

I am considering using URL rewrites in kubernetes nginx proxy to publish selected context paths in microservices which are run in a cluster running internal services. For example https://public....
2
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1answer
339 views

Why isn't an Expect-CT violation report sent when I use a certificate generated with Burp Suite?

I wanted to test the Expect-CT security header. So I searched for sites and found that LinkedIn uses the Expect-CT header: Expect-CT: max-age=86400, report-uri="https://www.linkedin.com/platform-...
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2answers
1k views

CORS Anywhere to bypass CSRF protection

CORS Anywhere helps with accessing data from other websites that is normally forbidden by the Same origin policy of Web browsers. Can CORS Anywhere be used to bypass CSRF protection? Reason to ask ...
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2answers
56 views

Why do we have to specify HTTP proxy specs when inside a LAN that is behind a proxy server?

Following this post, outgoing traffic will go through the proxy only if the requesting app knows the proxy url, if it doesn't then sending the request out of the LAN is denied by the proxy. In this ...
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1answer
806 views

Defeating proxy using hosts file

I had somebody say that it would be possible to defeat any http proxy url blocking, "by editing the hosts file and so that some whitelisted site maps to an IP address they control, with a server set ...
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0answers
44 views

Preventing admin from changing proxy settings

I am using a proxy server for my environment deployed on premises for internal hosts and on the cloud from BYOD. When a user takes their device off the premises, the proxy changes to an external proxy ...
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2answers
92 views

Why is the SSL message red?

The site Phonel.ir uses a SSL certificate. Why is the Error message in red? Is there a problem with the SSL certification? I sometimes use a proxy. Can that be the reason?
0
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1answer
256 views

https: Is my company connection intercepted?

I wanted to find out whether my company can see what I'm posting online as soon as using websites using a valid https certificate. I know there are a lot of posts here about whether my company can ...
2
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1answer
2k 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 ...
2
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3answers
10k views

Bettercap 2.x SSLStrip Is Not Breaking TLS (Without HSTS)

I have the latest version of bettercap. I have the latest version of Kali linux using the latest version of VirtualBox on the latest version of Windows 10. My target machine is the lowest possible ...
1
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1answer
465 views

ESNI (Encrypted Server Network Identification) with HTTP CONNECT (HTTP Proxy)

Regarding ESNI RFC (https://tools.ietf.org/html/draft-ietf-tls-esni-02) it copes with many possible security vulnerabilities. However I'm interested how is it supposed to prevent confidential ...
1
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1answer
167 views

Protect app from Http Proxy like Charles [duplicate]

I am using https request for web API in my app. But I know Charles allowed to access https request also, via install root certificates on device. So, someone downloaded the app from PlayStore and ...
0
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2answers
139 views

How does proxylist sites discover new proxy?

I always got proxies from proxylist websites but I never asked me how these sites discover new proxy. So how?
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1answer
1k views

Risk in having the PAC file in a server with no authorisation

So basically I’ve put my PAC-file under a non-secure web server with no authentication whatsoever in my organization. Later, I found out that there have been many attacks using this file type in other ...
13
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2answers
9k views

Would a reverse-proxy authentication server be a secure setup?

I work at a small consultancy and we often make web apps for our clients. One part of the web app that is often repetitive to write is the authentication system. In a lot of our web apps we would ...
5
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4answers
13k views

Burpsuite: just passthrough firefox detect portal

When I enable Burpsuite's Proxy I continiously get http GET requests for firefox's detectportal as seen in the following image: How I can configure it to somehow just pass though theese requests ...
6
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1answer
233 views

How SSL/TLS handshake happens when we use Cloudflare Service?

I was reading about the offerings of the Cloudflare and then I read about the working of Cloudflare. Based on my understanding, the domain name of my website(alice.com) is resolved to the IP address ...
2
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0answers
27 views

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 ...
0
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1answer
77 views

How to capture HTTP Traffic if the application uses Automatic Configuration Script?

I am testing an application that requires "Automatic configuration script" to be configured in web browser. How can i intercept HTTP traffic in such case. I am aware of temper data add-on but is ...
0
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1answer
137 views

POST Request to Server

Assume that a user logged in to a webpage with their own account, then makes a POST request and captures it. With some modification to the captured request, it is being executed. Sure. It goes through ...