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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13 views

Bluecoat sc-filter-result: DENIED but s-action: ALLOWED

I have a bluecoat server which sometimes creates rows which don't make sense: { ... "sc-filter-result": "DENIED", "s-action": "ALLOWED" } How is it possible to be both DENIED and ALLOWED?
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1answer
30 views

Difference between X-Forwarded-For IP, X-Real-IP, VPNs and TOR

I have this Google Chrome Privacy Preserving Extension that I am working on. Where I can spoof the header information e.g user agents and else. When I spoof X-Forwarded-For IP and go to ...
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0answers
31 views

Possible Infection - fkapp.herokuapp.com [on hold]

So recently I noticed that when I open a new tab, in chrome, then try to enter either a search term or a website, the notification in the bottom left of the window tells me that it is: "Waiting for ...
4
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1answer
74 views

What kind of attacks can target static resources?

Static resources and their caching interests me from the security perspective. Let's say we have an .jpg file requisted from the origin -> going through a reverse proxy with caching -> reaching the ...
4
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1answer
92 views

Is it possible to trace a backend through a reverse proxy?

I'm creating a reference network topology for a WebSocket chat application at work, and I'd like to have something clarified for my own understanding. The current topology involves a reverse proxy ...
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3answers
48 views

How secure is socks5 proxy over ssh?

At work we are all using Windows 7+, with full administrative privileges. Each PC has a dedicated IP and a proxy is used. It is set as a HTTP proxy and the option to use this for all types of ...
3
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1answer
76 views

How should certificates be shared between a proxy and a frontend?

At work, I've been asked to look into creating a reference topology for a WebSocket chat application, which includes a proxy between the web-facing frontend server and the backend. At the moment, I am ...
2
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4answers
138 views

SSL encryption process and its security

I know the basics of SSL encryption and how certificates work, but there are some points that are not clear to me regarding the SSL security: If there is a intercepting proxy between the web server ...
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1answer
35 views

Reverse Proxy SSL container

Technically and security wise, can a reverse proxy act as a "container" for SSL certs ? Meaning, for example currently my web server is running on ssl (https). Can I move the SSL cert to the reverse ...
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2answers
51 views

Charles Proxy can not capture message sent over SSL connection [closed]

I have setup Charles Proxy app and it can captures my https request/response sent through browser. Now instead of using the browser, i have an app that setup a SSL connection to the server, and then ...
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1answer
40 views

detecting proxy [duplicate]

say u host a website and people come and place orders with you while your away, u come back and see the orders have been placed by somebody, how will you find out if the person who placed the order ...
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2answers
62 views

Protect SSL connections from MITM for users with modified clients

I'm working on a web app that uses SSL. I'm afraid that some people might access the app via a network that uses a proxy to intersect and inspect the SSL traffic [MITM]. Some people might access the ...
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1answer
108 views

What is the simplest way for a Proxy/UTM to block HTTPS traffic using URL filtering?

I'm building a UTM using ubuntu, How can I block HTTPS traffic using URL filtering? (For example I want to block https://facebook.com) I'm using Squid as a transparent proxy server. Solutions I don't ...
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2answers
95 views

Is a reverse proxy worth it?

Is a reverse proxy worth it? There are so many unsecured sites using a reverse proxy and I feel like that doesn't protect them. After all if they have an error in their SQL that could be use for ...
1
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1answer
61 views

Does a TLS-connection to a proxy-server encrypt the destination url's?

If I use a browser through a proxy-server over a secure connection (i.e. the proxy is HTTPS) - does that mean that everything is encrypted, or just the page returned from the site? And who does the ...
2
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1answer
120 views

SSL Decryption why is the root CA certificate required on clients?

Maybe a quick question. We have Palo Alto's that perform SSL Decryption using a sub CA certificate issued by our internal Root CA. This is working for our internal windows domain computers as the root ...
3
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2answers
208 views

How does my browser detect my location, even via proxy?

How does my browser detect my location even via proxy? I have tried this code via VPN and got the same result as without it. According to the specification my browser should detect it from: ...
2
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1answer
124 views

Safety of exposing an internal web application to the internet using a reverse proxy in the DMZ

I am creating a web application which needs to make direct connections to internal resources (e.g. database servers), but will also need to be accessed from the internet. The web app exposes web ...
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1answer
78 views

configuring burp to use in proxy environment

my university internet connection runs behind proxy.its host name is 192.168.1.103 and port no is 3128.how to configure proxy in burp suite if i should enter above proxy setting in my firefox browser. ...
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0answers
99 views

Logging all traffic crossing SSH proxy

Is there a way to log SSH sessions proxied through a machine (User-> SSH Proxy -> Server (with SSH)) without modifying the SSH daemon on the proxy? I need to log all the commands as well as responses ...
1
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1answer
69 views

Can Web Proxy Autodiscovery leak HTTPS URLs?

The WPAD protocol can in some circumstances allow an attacker to get clients to use a malicious PAC script. It appears to be well documented, that this can be used to perform MITM-attacks on HTTP ...
6
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4answers
154 views

Solution to remain anonymous on a website that dismiss tor users?

I want to access to a website who recognize tor users and dismiss them. I have read that if you connect to a proxy after your tor exit node, the website wouldn't know that you are a tor user and ...
0
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1answer
37 views

In What Ways Can X-Foward-For Header Information Be Used In An Attack

By enabling X-Foward-For on our proxy, we would essentially be advertising our internal IP addresses externally. However, we use a private range. Everything goes through NAT. So, the best anyone would ...
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1answer
66 views

How to fully mask my computer without using tor? [closed]

I want to mask myself and therefore I configured a proxy server. I use debian and squid 2.7. It actually works fine, however, I visited the site whatismyip.com and I can still see that I'm accessing ...
1
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1answer
259 views

Has anyone used this ICLOAK USB device? [closed]

Does anyone know about this ICLOAK USB device? Opinions or how well they work? I'm looking for a security solution when I'm using PCs where I work. Occasionally we have to log into to web sites, ...
2
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1answer
79 views

ettercap use as local proxy [closed]

Hi everibody and sorry for my english, I'm looking for a way to use ettercap (or another program) to alter TCP traffic (coming from local) on the fly. I used "netsed" with iptables, but netsed is too ...
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1answer
52 views

SSL Test Server with typicals Flaws [closed]

i am testing different SSL-Proxys and want to know more about their failure-handling. Do you know about an public (test)server (HTTPS) which provides the typical flaws like: Expired certificate ...
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1answer
73 views

Official proof (document) that Linux is safer and faster than Windows [closed]

I work for the Mexican government, and even though everyone involved in Linux knows that it is safer and runs faster in most instances, I have not found an official document or authority that I can ...
0
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1answer
57 views

Decrypting SSL within Multiple Products

I've read the various questions tagged [ssl] and [mitm] and [proxy] and I couldn't find a duplicate. I cannot find any documentation on this subject online. All of the traffic is currently flowing ...
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1answer
49 views

Splitting data between wifi networks for security

Does there exist, software or technology, that can use more than one wifi network, in such a way that only part of the data travels through each 'side'? You would probably need an end address like a ...
0
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1answer
137 views

How does a reverse proxy change the security posture of a web server residing in the DMZ? [closed]

How does the reverse proxy change internal and external security posture with a reverse proxy compared to not having a reverse proxy? For example, you have a publicly accessible iis server, what is ...
3
votes
2answers
103 views

proxy servers and restricted work computers

I have a work-issued computer that I have limited access to the Internet due to the security protocols in place on the device. I want to use this machine at home, for work. I want to be able to hide ...
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0answers
160 views

VPN Server + Anonymity + Adblock for mobile Devices

In order to improve private security and anonymity while browsing the web on my mobile devices I wanted to tunnel all traffic to my own server via VPN and use a proxy software to filter unwanted ...
1
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1answer
323 views

End-to-end encryption with a reverse proxy and an application server

Lets say that I have an nginx reverse proxy that proxies the traffic to a Tomcat on the same server. I think the most common way to configure this setup is to enable SSL on nginx and then proxy the ...
1
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2answers
117 views

Using free subdomains to circumvent web filtering systems

(I was told that this was the place to ask this by someone from Webmasters, if I've got it wrong again please give me a chance!) I'm running a personal proxy service for the use of myself and some of ...
0
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1answer
123 views

Sniffing external networks from a public network (place)

There is something that I can not understand. If you are preparing, building up an attack from a public place (coffee shop, restaurant ect.). How can you be tracked by law enforcement? I'm asking ...
2
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0answers
129 views

Rogue WPAD server attack

Today I encountered something I have certainly not seen before first hand. Our IDS blocked some outbound traffic attempts from 5 servers with no WAN access. This traffic was leading to an inactive ...
53
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4answers
4k views

What security risks are posed by software vendors deploying SSL Intercepting proxies on user desktops (e.g. Superfish)

There has been quite a bit of concern noted relating to the recent discovery that Lenovo are pre-installing a piece of Adware (Superfish) which has the capability of intercepting SSL traffic from ...
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0answers
57 views

Proxpy- certificate issue

I am using proxpy, a proxy server written in Python. It comes with its certificates and after installing one of the certificates in Firefox, I got 'Connection is untrusted'. Any help in this regard ...
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2answers
225 views

How to force clients to browse Internet through Squid Proxy

I am using Windows Server 2012 in which I have shared internet through NAT to a secondary LAN card using routing and remote service. The problem is that when my clients are browsing through proxy ...
2
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1answer
707 views

Intercepting HTTPS Android app traffic

I'm trying to intercept Android application traffic from my Android phone....Basically what worked before was that i had simply installed fiddler proxy on my PC, exported the root certificate (and ...
1
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3answers
74 views

Secure tunnel set up in an office environment

Suppose I am a rogue employee and I want to syphon some sensitive data out of the office and I only have office internet access for this. My office internet access needs to go through a proxy server, ...
2
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0answers
112 views

Securing elasticsearch behind a reverse proxy

I intend to run an Elasticsearch index to store a persistent copy of data retrieved from an external service. My plan is to host the Elasticsearch index on AWS, and have it listen on 127.0.0.1 only. I ...
1
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3answers
884 views

How to intercept and analyze mobile SSL application traffic?

What is the best way to analyze requests sent by a mobile application over SSL? The communication protocol is not necessarily HTTP/S so intercepting them with BURP/ZAP/Fiddler or any other HTTP proxy ...
2
votes
2answers
97 views

Security of HTTP proxies

If POST requests are being made to a website via a browser using an HTTP proxy from sslproxies.org, is it possible to trace the origin of those AJAX requests without having access to the proxy being ...
3
votes
1answer
243 views

How can I intercept XMPP traffic on Android?

I have been learning about security testing on Android apps, and to intercept traffic I was using Burp Suite. I know it works perfectly for HTTP/HTTPS traffic, but most of the messenger apps are using ...
1
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0answers
92 views

HTTP GET Request to a webpage that does not exist [closed]

I am seeing a machine is making a HTTP GET request to webpage (ex: www.sample.com/1.png), proxy devices respond with status code 407 (proxy auth required). But when I checked for the site via ...
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votes
1answer
176 views

Proxies, and how they can be traced

When you make an connection with a proxy and you do something shifty to a server, the people working the server could just call up all ISP's and then your ISP sees the last connection you made was to ...
2
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1answer
216 views

Can a corporate proxy downgrade an SSL handshake?

At work, I'm behind an NTLM Proxy. When the SSL Poodle flaw came out, I hardened the configuration of my private server, and found out that even if the client and server shared common ciphers, some ...
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1answer
700 views

Interpreting anti-hacker-alliance analysis [closed]

One of security tools available for web browsing is (http://anti-hacker-alliance.com) Please find below two readings: a) Reading for IP 205.x.x.x that state among other-things "you are using proxy ...