The word "proxy" is mostly used as short for "proxy server", which is a server that acts as an intermediary between a workstation user and the Internet so that the enterprise can ensure security, administrative control, and caching service.

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How to config Squid SSL bump to let Paloalto PA series firewall recognize App-ID

A Paloalto firewall(PA-2050,POS 4.1x) was capable of recognizing the websites which users are visiting(thru http/https) then flag them with a App-ID and apply application control on the traffic, for ...
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1answer
37 views

MITM attack in a star network with proxy server

My community centre has a public computer center. I am pretty sure that it's connected in a star topology with some switch in the center. It also have a proxy server which we need to enter a username ...
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1answer
66 views

SSL decryption without installing a certificate on each client

Given a proxy performing MITM SSL decryption and inspection, is it possible to install a wildcard certificate (*.domain.com) on the proxy signed by a root CA (such as VeriSign or GoDaddy) such that ...
5
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1answer
124 views

What Steps Does An Anonymous Artist Need To Take to Retain Anonymity? [closed]

I read these questions which had great information: How can I keep my identity anonymous as a website owner/administrator? and How much can I trust Tor?, however I wonder if this is too extreme for my ...
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2answers
83 views

How to get net anonymity while browsing?

I am a college student and am getting free wifi for using the 'Hostel campus" facility ', to access net, I have to put a proxy IP address to my browser. I have heard that they can see what all ...
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54 views

exploiting HTTP HOST header based redirection in apache reverse proxy for intranet resource

I'm looking for suggestion on a POC which I'm doing. I'm trying to solve a use case where in a user accesses the intranet websites from some corporate mobile app when he is not on corporate network ...
2
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1answer
348 views

HTTP Reverse Proxy: Correct way to do SSL to backend

If I have a HTTP reverse proxy that communicates with it's backends in an untrusted datacenter, or across datacenters, I would want to use HTTPS in the backend, as talked about here: Reverse Proxy ...
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0answers
32 views

How do I detect a Socket Secure (SOCKS) proxy?

I've been trying to detect a Socket Secure (SOCKS) proxy server using PC fingerprint, but everything looks the same, regardless of the proxy's presence. Are there ways to block the sock access?
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0answers
17 views

Drop cookie or inject HTTP traffic

Is it possible to drop cookies while being MITM? What tools are may be useful? I can use Ettercap filters or some transparent proxy, so I can modify http traffic. The problem is that filters work all ...
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3answers
1k views

How to block the websites on client machines

In our office we are blocking sites like Facebook, Twitter etc.The problem is that some of the users bypass our proxy and firewalls through external proxy sites like www.youhide.com or ...
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1answer
93 views

Does an HTTPS proxy encrypt traffic between proxy client and server for HTTP requests?

To bypass censorship in a DIY fashion, I plan to set up private proxies for my personal use. One of the possible methods I would try is to use an HTTPS proxy (not a web proxy, to be explicit) hosted ...
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1answer
36 views

Protecting encryption of outdated software with a server

I have a 1st generation iPad, and I usually use it for web browsing when I'm home. The 1st gen iPad can't run newer versions of iOS (I'm stuck with iOS 5). I went to a website that tells if your SSL ...
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4answers
163 views

If you connect through a website via a proxy, and the proxy doesn't save information, can you still be linked back?

Say I connect to a specific proxy that I know will not keep information/data about who connected to it, and I go to a website and do something deliberately illegal. If the "middle-server" doesn't have ...
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2answers
44 views

Security risk of Microsoft AD Certificate Services?

We have an internal CA server for our domain located at http://cert_srvr.local.domain/certsrv/certrqxt.asp. This server runs Microsoft Active Directory Certificate Services. When I went to the ...
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1answer
77 views

Strange bug in ModSecurity with the rule 950901

I have a classic ModSecurity configuration (apt-get...) SecRuleEngine Off SecPcreMatchLimit 1000 SecPcreMatchLimitRecursion 1000 SecAction "phase:1,t:none,nolog,pass, \ ...
27
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9answers
14k views

Can my company see what HTTPS sites I went to?

At work my company uses internet monitoring software (websense). I know if I visit a https ssl-encrypted site (such as https://secure.logmein.com) they can't see what I'm doing on the site since all ...
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1answer
86 views

What can entreprise admins do with our secured sessions?

The enterprise where I work has a proxy server that traces and filters our web activities. Employees claim that they can know the links that we visited and see the content of HTTP web sites, but they ...
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2answers
540 views

How does dnsleaktest.com find my DNS provider

Can't see how they find this over the web. I'm on Windows, its in my network config. It changes when I use a VPN provider, but not when I use a local socks proxy connected to a remote server over ...
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1answer
62 views

Why are certain languages chosen for security application development over others?

Specifically, why are the most popular attack proxies written in java? Is there any particular security posture to the design of the java language that makes writing tools like these simpler? Easier ...
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1answer
86 views

Reverse Proxy SSL

I am having trouble finding out if a potential server configuration is secure. I have a server running a nginx reverse proxy that is accessible from a public ip address on the ports 80 and 443. I then ...
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3answers
1k views

SSL VPN Detection and possible to block

Is it possible to determine the difference between a VPN on port 443 compared to standard SSL traffic? In order to access SSL websites you need port 443 open but if you setup a VPN Service on port ...
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1answer
111 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 ...
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0answers
45 views

How should I configure my Tor-dedicated firewall for optimum security?

I'm setting up a Tor-based isolating proxy using the 'Anonymizing Middlebox' iptables rules specified here: https://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy i.e. iptables -t nat ...
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0answers
42 views

Reverse proxy which only proxies published query strings?

I'm setting up a reverse proxy to limit access to a protected resource. The protected resource provides a status page (http://protected.local/info). That page contains a number of links with query ...
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1answer
106 views

How to prove iOS app is vulnerable to MiTM

I'm updating an iOS app and I want to prove that it is vulnerable to MiTM attack. I have set up Charles Proxy on my mac and configured the Simulator so that it trusts Charles CA Certificate, per ...
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2answers
408 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, ...
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1answer
198 views

Using Proxy Server, can gateway know which URL i am trying to open

I am using a Proxy for example UltraSurf, if I try to open a URL in my web browser, obviously web browser is going to send this information to my Proxy, then Proxy is going to communicate my Gateway. ...
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1answer
177 views

Which is more secure - a VPN, a proxy-server, Tor, etc.? And why so, exactly? [closed]

I want to know how to ensure the most complete anonymity when browsing the internet and connecting to remote servers: I want to be as anonymous and secret as possible. I don't know exactly how VPNs ...
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3answers
4k views

Proxy vs. Firewall

I understand that very simply put a proxy is a sort of 'man in the middle' allowing/denying access to certain services/resources. Strictly in terms of security (I mean here privacy, parental control ...
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0answers
57 views

Reverse proxy and corporate PKI

Here at OU=PKI we've been requested to issue a certificate with CA capabilities to install it in our reverse proxy, so that it could issue trustable certificates for every single web. (SSL ending) ...
3
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2answers
855 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. ...
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1answer
52 views

Determine if Tor works

I have installed Tor on my Mint computer, but how do I determine if Tor is working? When I visit http://whatismyip.com, my old IP is shown. Should it not be a different IP when I'm using Tor? Here is ...
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1answer
68 views

Using Fiddler to capture few important Details

I want to implement the following requirement. In an online Bank Transaction, a User wants to send an amount of $1000 to an Account A. I want to see that the request is going unmodified to Banking ...
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3answers
327 views

Go through proxy server to Find an original IP Address [closed]

I work for a small company who has troubles with third parties selling our products on Amazon. Sometimes those third parties have websites and when I use an IP address finder online it gives me ...
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2answers
107 views

Are SSL encrypted communications through a company network safe?

If I'm using Skype, Facebook, or another type of communication at my work, can the network administrator see my Skype and Facebook conversations, although its encrypted with SSL? I found this text: ...
8
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2answers
734 views

HTTPS login vs MITM attack

http://www.troyhunt.com/2013/05/your-login-form-posts-to-https-but-you.html My question is, if the threat is that someone controls your internet connection and can serve up bad login pages, couldn't ...
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2answers
120 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 ...
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1answer
234 views

bypass proxy using another ip address

I have a scenario in which i have two computers with static ip address that run under common proxy..and lets say computer A is blocked from accessing certain site lets say,www.facebook.com and another ...
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3answers
147 views

Can ISP detect a proxy connection's contents?

No idea if this is right place to ask. In my country, by law, all ISPs are required to block certain websites. People can not access such sites. But, through proxy websites every one can access ...
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1answer
80 views

How to get orignal ip of user even if he is using proxy [duplicate]

Question is clear from title, is there a way to track user even if he is using a proxy. The point is, am i secure enough to surf internet with proxy to hide myself?
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2answers
375 views

Tor - chain of connected nodes?

For a long time now I have been wondering how to find out where you actually connect to with Tor. The only thing you can do in Vidalia is show a Network Map of all available Nodes worldwide, which is ...
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2answers
70 views

Using a Proxy to Log Http/s requests and Performance Evaluation

I have to read http/https messages sent from a client system and see that the messages are not being modified within system by any malware and the server receives what exactly the user wants to send. ...
0
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1answer
104 views

Which OpenSource Proxy is Better and easier to use? [closed]

I have to read http/https messages sent from a client system and see that the messages are not being modified within system by any malware and the server receives what exactly the user wants to send. ...
0
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2answers
239 views

OWASP ZAP Proxy HTTP issue?

I am using ZAP 2.2.2 and I have generated a dynamic SSL certificate and added it to my Firefox browser. I then started a proxy on localhost with port 8090 and configured Firefox to use it. When I ...
0
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1answer
53 views

Is it reasonable to use a security proxy when integrating two web applications?

Background: We're in the process of integrating two web applications. The other one, application A, is a publicly accessible Internet service, which is provided by a third party and which offers Web ...
0
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1answer
53 views

Key Management in Interception Proxies?

I'm reading Jarmoc's Black Hat presentation on SSL/TLS Interception Proxies and Transitive Trust. I have a few questions on some of the key management practices. In the paper, Jarmoc states: To ...
1
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2answers
2k views

Is it possible to spoof the last proxy of an X-Forwarded-For Header?

I'm using a firefox plugin https://addons.mozilla.org/en-US/firefox/addon/x-forwarded-for-header/ to spoof the X-Forwarded-For Header to 8.8.8.8. For the following php page: echo ...
1
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1answer
119 views

Is authentication through proxy sites safer?

usually in office or wherever whenever we are blocked with gmail and facebook websites,we used to browse the site with the proxy sites,we used to pass our login data through proxy sites,my question is ...
3
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4answers
446 views

Outbound proxy which whitelists by server certificate?

Short version: Are you aware of any proxy or firewall device which will permit outbound SSL connections to hosts with approved* SSL certificates only? Long version: Consider the following ...
2
votes
2answers
139 views

Does reverse proxy between two web servers impact security of both?

Situation: Consider the site: example.com, hosted at web server A. A WordPress blog is to be installed on a different web server, B. In order to route a WordPress installation to a subdirectory on ...