A man-in-the-middle attack (MiTM) is an attack against a communication protocol where the attacker relays and modifies messages in transit. The parties believe they are talking to each other directly, but in fact both are talking to the attacker.

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man in the middle attack over internet

I've performed some man in the middle attacks (arp poisoning) using ettercap, stuffs on kali linux and i know how exactly it is working. but i was wondering if this attack could be even performed ...
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If I clear my browsing data, is HSTS protection removed?

I've seen that if I delete cookies and other data on Google Chrome, SSLStrip+ works successfully on those web sites that are not included in the browser list. Is it because HSTS data is cleared too?
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MITM my own SSL connections with e.g. wireshark - no proxy

I'd like to investigate some SSL (https?) traffic coming from one of my computers. The problem is that I don't know for sure which program it comes from, and I most likely can't make it use a proxy (...
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35 views

Does Apple CloudKit prevent 3rd party apps from MITM'ing the API?

One of the issues with SnapChat is that some users were using unauthorized apps to access the backend API, which then allowed for some application level security to be compromised. I am of the ...
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How does someone become a man in the middle?

As I understand it in order to commit a succesful MiTM attack you need to be "sitting" somewhere along the traffic path. I assume this means being hooked up to one of the nodes inbetween the end ...
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120 views

Why does SSLStrip work on some https sites and not others? [duplicate]

I recently tested MITM on my LAN through SSLStrip, but I noticed that on Gmail and Fb doesn't work, while on other sites I can sniff connections easily. What is the difference?
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54 views

Are there “master keys” that can be used to generate valid SSL keys?

I was in a discussion about SSL, and I was explaining that it's impossible to decrypt data sent over SSL if you don't have the key. Someone responded with the following, that really confused me: ...
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51 views

Rightscorp Scaleable Copyright - How would they avoid making this a massive security risk?

I recently read an article about a new copyright protection system that RightsCorp America is trying to get ISPs to help implement. From the Article: “Single notices can be read and bypassed ...
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50 views

How to perform a MITM between a server and a client program whose local ports are randomly spawned?

I usually used Burp or similar tools for browser-based communications. The client program in question doesn't offer a proxy option to be configured. So I can't use Burp in this case, besides ports are ...
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4answers
282 views

How can I detect HTTPS inspection?

In my company I do use my computer for private things like online banking and personal email during lunch time. I've always thought that when Firefox shows me the green lock symbol that a valid HTTPS ...
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1answer
46 views

Intercept pinned SSL connection with private key

Can I intercept https traffic that uses certificate pinning using fiddler if I have the private key of the cert? I am trying to intercept traffic between our mobile apps and API, and the mobile apps ...
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2answers
109 views

Is it safe to use TFTP on a local network

Is it safe to use TFTP on a local network to backup configurations? For example we had an experiment where there was an attacker using MITM technique to read all traffic destined for a server. On a ...
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54 views

Does using Tails make one a target? Is it possible to identify users of security-focused operating systems like Tails?

I'm wondering if Tails takes countermeasures to prevent the techniques that http://panopticlick.eff.org/ uses from identifying Tails users as such. (Presumably adversaries could identify users that ...
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How can I protect against cross-build injection and other dependancy management threats in Play Framework?

I am using Play Framework's inbuilt dependancy management to download a library (HTMLUnit), to do this I add the dependancy to the build.sbt file like so: libraryDependencies += "net.sourceforge....
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66 views

Is it possible to run a MITM attack on WIFI hotspot [closed]

(completely opened hotspot) Example: can an attacker sniff traffic and credentials from a bar?
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58 views

MITM Traffic forwarding not working on Kali

I'm doing a ARP Spoofing MITM attack like this: arpspoof -i wlan0 -t 192.168.1.112 192.168.1.1 -r And I can see the traffic from the target (192.168.1.112) showing up in the sniffer, but the target ...
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38 views

Should sensitive data be encrypted before a POST request? [duplicate]

If sensitive data is being passed through an AJAX POST request, should this data be encrypted beforehand, or is simply using HTTPS enough to protect the data from man in the middle attacks?
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3answers
204 views

How to check if I have a rogue SSL/TLS certificate?

It's known, that if someone manages to install their certificate as a trusted certificate on your Windows computer, they can read all you SSl/TLS traffic with man-in-the-middle attack and you won't ...
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59 views

Why does Canonical not enable https here?

It is always verify disk images before using. In Ubuntu's website, many pages are sent through https. However, some of the most crucial pages are not. For example, http://releases.ubuntu.com/trusty/. ...
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128 views

Is email sent form a Java web-app over a HTTPS connection encrypted?

I'm working on a Java web-application which runs on a HTTPS connection. This application sends emails to its users. I want to protect those emails from man-in-the-middle attacks and other potential ...
58
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3answers
5k views

Why aren't IMSI catchers rendered ineffective by standard MITM defenses?

There's been a lot of reporting in the past few years about law enforcement agencies using IMSI catchers (also known as Stingrays after a popular brand of them) to intercept cellular communications. ...
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191 views

MITMproxy doesn't display HTTP/HTTPS traffic of Android Apps

I am using mitmproxy to analyse the https traffic of some Android Apps. A few days ago I was able to intercept all the traffic without any problem and now mitmproxy doesn't seem to work properly. ...
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81 views

What is Credential forwarding attack?

What is credential forwarding attack? Does this happen only when the client connects to two servers with same credentials?
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48 views

mitmproxy not displaying ARP-poisoned traffic

I have a target computer at 10.0.0.14 and gateway at 10.0.0.1. I successfully insert myself as a MITM by running sudo arpspoof -i wlp3s0 -t 10.0.0.1 10.0.0.14 sudo arpspoof -i wlp3s0 -t 10.0.0.14 10....
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122 views

Server-side man-in-the-middle/eavesdropping: attacks between two servers using unencrypted HTTP

I’m new to security, and I’m wondering how man-in-the-middle and eavesdropping attacks between web servers work, rather than between personal devices and servers. Most questions I see here about man-...
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How long can X.509 certificate chains be?

Usually, I only see certificate chains with a root CA, an intermediate one, and a third one for the particular SSL/TLS website; but can X.509 certificate chains be deeper than 3 levels? Is there a ...
6
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170 views

Does Perfect Forward Secrecy (PFS) make Man-in-the-Middle (MitM) atacks more difficult?

Does Perfect Forward Secrecy (PFS) make Man-in-the-Middle (MitM) attacks more difficult? If not, why?
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MITMf which files can it patch

From this tutorial i found that it is possible using tool MITMf to patch exe files ''victim'' downloads in order to open a meterpreter shell. The commands that have been used are the following: use ...
6
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862 views

How does an attack on a digital signature work?

In our IT Security class we have been told that you need CA's to prevent attacks on a digital signature. Sadly, our docent didn't elaborate how such attack would be performed - I can only guess that ...
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2k views

How is it possible to do TLS through proxy without anyone noticing?

My workplace uses a proxy to connect to the internet, even for https sites. It was my understanding that for this to work, the proxy would be considered a MITM, and the certificate presented would be ...
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53 views

Open source tool to test a WAF against OWASP Top 10? [closed]

Are there any open source tools to test a WAF against OWASP Top 10? Especially I am looking for a tool that tests a WAF against different types of attacks & reports test results.
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99 views

Intercept HTTPS traffic.. with a cert

So I am working with Charles proxy server, I understand I can decrypt HTTPS traffic, if the user accepts the invalid cert warning on the browser or trusts charles as a root CA. However what I have is,...
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Can username/passwords be intercepted on an App using public wifi?

I use the ADVFN finance app for stock prices every morning on the public wifi on my train to work. This requires me to login with my username and password on the app(which are saved). Do apps provide ...
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62 views

How can an attacker downgrade/modify the cipher suites when they are MACed? (Freak, Logjam use downgrade attacks)

In the Finished handshake of TLS all previous messages exchanged are sent from the client to the server (and reverse) and protected by a MAC. This is what also "prevents" TLS_FALLBACK_SCSV from being ...
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56 views

How to add scripts in HTML file passing through network? [closed]

how to add JavaScript file to every HTML document that is passing through your network ?
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46 views

How to prevent injection of Layered Service Provider (LSP) module in application with kernel-level?

LSP technology is often exploited by spyware and adware programs in order to intercept the communication across the Internet. For example, malware may insert itself as an LSP in the network stack ...
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709 views

Why don't ISPs offer encryption?

I was quickly wondering, why don't ISPs offer encryption for the traffic from the customer's router to the ISP-server? Until now, if you want to protect against e.g a MitM-attack you solely rely on ...
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78 views

is it possible to intercept network packets outside lan?

User A is in a different country than user B and they have different IP ranges and ISPs. Is it possible for A to intercept B's communication sent to a third party, without using techniques like ...
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94 views

Intermediate proxy intercepting my SSL data between my computer and the ISP

I did a simple scan of my linux firewall today using grc.com's shieldsup on their website (https://www.grc.com/x/ne.dll?bh0bkyd20). Previously when doing this it shows I have full stealth but today it ...
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44 views

Is there any security implication of using WebRTC over unencrypted channel for streaming?

I've spend a few hours reading about WebRTC and everywhere it's recommended to use a secure connection for contacting with the signal server, so no MitM attacks could be possible. However, my project ...
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1answer
122 views

What can a trusted certificate do?

I am doing some reading about security on mobile applications because I found an article about Man in the Middle Attacks. I saw in that article and in many other places (including security....
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39 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 ...
2
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1answer
240 views

There might be a man in the middle attack against my server

I have a little $7.20/y VPS, and the fingerprint for the ECDSA key has changed three times on me. This time, it happened shortly after I reinstalled the server (same day, in fact.) I always disable ...
0
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2answers
171 views

SSLstrip is not working in the local network

My issue is the SSL stripping is not working in my LAN, but it works if I try to attack a HTTPS website with no HSTS. I am not using any domain name just the IP address of the server. Is there any ...
5
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2answers
501 views

What is the difference between MITMproxy and SSLsplit?

I am aware that MITMproxy only captures HTTP/HTTPS protocols where SSLsplit is a transparent proxy and therefore can capture also other non-HTTP protocol communications. However MITMproxy can operate ...
0
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1answer
52 views

Does subterfuge work on ALL networks?

Does subterfuge's ARP poisoning attack work on all networks? If not, what kind of precautions can be taken against it? Meaning, what kind of networks, if any, does it fail on? My understanding is that ...
0
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1answer
66 views

Where can emails be sniffed from? [duplicate]

I understand that you should not send private information in emails due, in part, to the fact that this traffic is usually unencrypted and can therefore be sniffed while in transit. Where would a ...
4
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2answers
89 views

Check validity of SSL cert on public network?

So my company has just started issuing their own SSL certificates, so HTTPS sites now show as being secure, but if you check the certificate used the root CA is us, not whoever the site used. This ...
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1answer
70 views

Sample attack scenarios on file downloads over HTTP

The websites that serve files over https, can it be considered overkill? or is it a best practice everyone has to follow? The downside to serving files over HTTPS is that you will lose the caching as ...
3
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60 views

Simulate Tor Circuit

So an interesting thought popped into my head as I was thinking over the Cryptowall malware. If you don't already know, Cryptowall utilizes the Tor service to make the back-end service it uses ...