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Questions tagged [http-proxy]

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Which is more secure and better practice? Setting up a reverse proxy on backend with localhost or on a separate VM and route to other VMs/services?

I wanna know if it's better in terms of security, availability and best practice to set up a nginx reverse proxy on my backend and use it with localhost or to set up a VM that handles everything for ...
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1 vote
1 answer
74 views

What can evil HTTP proxy do, when using HTTPS?

I am connecting to a HTTPS service with SSL through a HTTP (not HTTPS) proxy. I am using Chrome/Firefox proxy settings. (Chrome does not directly expose them, but it can be set via chrome extension or ...
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44 views

Browser Corporate Proxy - Intranet vs Internet

Most corporations have a forward proxy to channel all traffic from devices on the intranet to the internet, for various security reasons. When the device is on the internet, I suppose the proxy is not ...
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1 answer
181 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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1 answer
169 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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1 answer
77 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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0 answers
202 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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2 votes
1 answer
151 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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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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2 votes
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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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1 answer
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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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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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1 answer
240 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 ...
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10 votes
1 answer
1k 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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1 answer
119 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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  • 103
2 votes
3 answers
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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1 vote
1 answer
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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1 vote
0 answers
102 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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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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408 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 ...
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1 vote
1 answer
989 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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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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  • 145
1 vote
3 answers
434 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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1 vote
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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 ...
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2 votes
1 answer
305 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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1 vote
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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 ...
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2 votes
0 answers
104 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-...
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2 votes
1 answer
143 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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1 vote
2 answers
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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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  • 113
1 vote
2 answers
3k 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 ...
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3 votes
1 answer
657 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 ...
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1 vote
1 answer
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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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395 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 ...
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1 vote
1 answer
262 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....
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2 votes
1 answer
446 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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2 answers
2k 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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0 votes
2 answers
93 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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0 votes
1 answer
1k 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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0 answers
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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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0 votes
2 answers
134 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?
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1 answer
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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 ...
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2 votes
1 answer
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 ...
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  • 151
2 votes
3 answers
11k 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 ...
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  • 151
1 vote
1 answer
537 views

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

Regarding ESNI RFC (https://datatracker.ietf.org/doc/html/draft-ietf-tls-esni-02) it copes with many possible security vulnerabilities. However I'm interested how is it supposed to prevent ...
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1 vote
1 answer
230 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 ...
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0 votes
2 answers
185 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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  • 103
-1 votes
1 answer
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 ...
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  • 153
13 votes
2 answers
10k 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 ...
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6 votes
4 answers
14k 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 ...
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6 votes
1 answer
285 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 ...
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