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

Does Perfect Forward Secrecy (PFS) make Man-in-the-Middle (MitM) attacks more difficult? If not, why?
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15 views

Is traffic not encrypted given ERR_CERT_COMMON_NAME_INVALID?

If I am shown ERR_CERT_COMMON_NAME_INVALID, and I can see that the domains do not match (cert for *.example.com but I am visiting https://foobar.com), do I understand correctly that someone packet ...
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1answer
85 views

How to capture all traffic from a new device?

I have a new IoT type of device that requires a wifi connection to work. I have no use for the device but I'd like to poke around it and learn more about it. How should I go about intercepting every ...
3
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2answers
72 views

As an end user on a network, how can I avoid being MITM'd by an SSID-spoofing device?

I've been looking at SSID spoofing devices lately, including the Wi-Fi Pineapple and similar hardware. While these types of devices seem very useful to someone who's up to no good or working as a ...
4
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1answer
2k views

how to make socat ignore client certificate?

I'm trying to set up a listener to check if an application checks the server's certificate (I'm strongly assuming it is not). So I've created a self-signed certificate fake.pem for a listener and am ...
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2answers
73 views

Why are there duplicated entries in the ARP table in a MitM attack?

All I read when it comes of detecting a man in the middle attack is that the ARP cache table will have duplicated entries for the attacker MAC address, but I can't find the reason why. The way I ...
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1answer
67 views

MITMf arp spoofing inconsistent

using MITMf I'm getting inconsistent results, sometimes it just works, other times it just doesn't... I'm wondering is it like that for others or am I doing something wrong? the command I'm using ...
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1answer
39 views

Is it possible to DNS-spoof Exchange ActiveSync?

My company's SSL Certificate for basically all their websites and Activesync servers have expired long ago. For my upcoming meeting's sake I need to explain how this is very insecure. Unfortunately I ...
3
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1answer
52 views

Opt into strict DNSSEC checking - does DNSSEC provide a way for a zone to request strict signature validation?

Is there a way for a domain good.com to promise that it will sign all of its DNS records, and that any unsigned records for any host *.good.com should be rejected? In other words, is there a way for ...
7
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1answer
133 views

SSL Certificate MITM Attack for Expired Domains

Let's say I have a domain name, like mysupercoolproduct.com. I buy a 2 year SSL certificate for it, and then I am negligent and the domain gets snatched up by someone else. I still have a valid SSL ...
3
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1answer
85 views

How to securely communicate with radio controlled device?

Let's say I have a drone that is controlled through radio and I would like to make sure that nobody else can control and gain data from it except for me. I could encrypt the data with a cipher and ...
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1answer
72 views

MITM of the SSH connection?

We connect to the servers via the "FOOBAR" machine. desktop -> FOOBAR(bar.com) -> server FOOBAR can log our SSH connections, what we type, etc. We log in via the following command: ssh -A -t ...
3
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2answers
621 views

If I visit a https site from a Family Safety-enabled computer, and someone drops in on the connection, will I be notified?

While reading about Family Safety and HTTPS: Since HTTPS is designed to prevent snooping, Microsoft Family Safety would be unable to monitor the encrypted traffic unless it performs what is ...
0
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1answer
52 views

Does ARP or DNS spoofing play a role when performing MITM in fake AP attacks?

I have a test environment, where I try some wireless hacking tools and approaches, and lately I have been interested in evil twin attacks. I created a fake AP using airbase-ng, and specified the IP ...
0
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2answers
52 views

Can I be MITMed when accessing an HTTPS website from my own device through a third-party network? [duplicate]

If I'm using a device which isn't mine for accessing a website, then I assume the administrator of that device/LAN could read anything I do on it, no matter if it's an HTTPS connection or not. But, ...
0
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1answer
93 views

Why does DNS Spoofing not working on HTTP ,HTTPS Sites? [in my case]

I am trying to perform a DNS spoofing attack, but the confusing thing is that when I'm performing the attack on HTTP sites, nothing happens. But when I perform it on HTTPS sites, when I reach the ...
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3answers
145 views

Can a Man In The Middle attack cause a certificate error? [closed]

I was playing around with Ettercap and I performed an ARP spoofing, MiTM attack on a friends computer as a joke. Now (about a day later) she tried to login to a website for work and it said "Your ...
3
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1answer
301 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 ...
3
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1answer
46 views

Making SSH warn of MITM monitoring

I am a bit of a newbee with SSH+security, so I'm not sure if the assumptions in the following question are entirely correct... I am in a hotel which uses zscaler.com to monitor its guests' internet ...
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2answers
36 views

Arpwatch position in network topology

I'm a little bit rusty with MITM attack and its preventions. Where is the right network position where to install arpwatch? If you place it in the router you can only prevent host2gateway mitm. To ...
6
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1answer
217 views

Does HTTPS protocol leak HTTP body length?

It seems that in a MITM attack, hackers may know the whole HTTPS packet size sent through the network (i.e. size of HTTP headers + HTTP body + overhead). Besides that, does the HTTPS protocol also ...
4
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2answers
485 views

Httpclient redirect in coffee shops

In some coffee shops that offer free WiFi (for instance Starbucks), I have noticed that attempting to use HTTP or HTTPS fails unless you accept a notification (on Windows at least) which looks ...
2
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1answer
53 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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1answer
16 views

Are browsers fetching the XSLT namespace over HTTP when transforming XML?

According to the W3C recommendation https://www.w3.org/TR/xslt#xslt-namespace (and according to http://www.w3schools.com/xsl/xsl_transformation.asp), an XSL style sheet using XSLT should be declared ...
3
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2answers
48 views

Does MITM refer to what you do in the middle or how you get there?

Does the term "MITM attack" refer to what happens once an attacker is between two hosts or to attacks like ARP poisoning, DHCP snooping that allow the attacker to insert himself between two hosts in ...
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1answer
81 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 ...
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1answer
61 views

What happens when attacker disrupts the ssl handshake?

I have recently understood how SSL handshake works.I understand that once the handshake is done, everything is shared by secret key between server and client. I want to know what happens if Man in the ...
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0answers
15 views

DNSSEC ZSK compromisation (man-in-the-middle attack)

Assuming I am administering a DNS zone and I operate an authoritative name server that is secured with DNSSEC (split ZSK/KSK setup). When the Zone-Signing-Key (ZSK) ever gets compromised, would it be ...
0
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1answer
67 views

Is HTTP POST insecure?

Is it possible to perform a MITM attack or even bruteforce a HTTP POST? If so how does one perform an attack and how can a developer protect his/her site from such an attack?
2
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1answer
6k views

What is the difference between ARP and ICMP MITM attack?

I want to know the difference between arp and icmp mitm attacks and why someone would use icmp over arp. I am looking for an educated response comprised of the principles behind both attacks, their ...
2
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1answer
56 views

Man-in-the-middle packet injection

I'm currently studying the possibility of a man-in-the-middle attack in a network consisting of a switch and 3 computers: Server/Host Client Man In The Middle The server and the client will change ...
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5answers
3k views

What are the advantages of multi-level authentication?

By multi-level authentication, I am referring to the fact that the user makes use of a primary username password keypair to log into his account. Then, to perform some other actions, such as authorize ...
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4answers
166 views

Can duct tape prevent hackers from watching me?

Since hackers can hack into my mobile phone/computer and use its camera to watch over me, Q1: Can I know if my mobile phone/computer camera has been hacked? Q2: If I was hacked, does putting duct ...
3
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1answer
62 views

What might be the reason for an major antivirus software to not detect an malicious DNS entry?

I recently installed the trial version of Kaspersky as I had always a good impression of the features of their software. I also bought a 1 PC 1 year license, but didn't unsealed it yet as something ...
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3answers
242 views

Decrypting SSL over a mobile network

I work for a large company and we are trying to judge the safety of some proprietary information that is being sent and received in a new application we are developing. After our initial testing we ...
26
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5answers
30k views

Can I detect a MITM attack?

Based on this question here: Are "man in the middle" attacks extremely rare? Is it possible to detect man-in-the-middle attacks, and if so, how would one go about it? In addition, what if ...
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0answers
26 views

Weird connection error prompts, Rootkits & MitM?

Can someone give me insight on these connection error prompts? https://imgur.com/a/FEHJj My internet kept reconnecting two weeks ago and I couldn't access the internet until I performed a hard reset ...
5
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1answer
77 views

Accepting Avast Antivirus MITM certificate “securely”

I have a multiplatform client plugin that has its own trust store (ie this client app does not trust the OS trust store) that is used to talk to a webservice over TLS. Clients that have Avast ...
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1answer
22 views

How to securely pass data for backend update from client?

Suppose I have 3 videos on my page. Client can watch each of the videos, once complete, he would earn npoints depending on which video he has watched. I want to POST that n for the specific client to ...
6
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3answers
2k views

Isn't HTTPS insecure over a hacked router? [duplicate]

I have heard that a hacker can become a proxy using the router your device is connected to and send his own public key to you instead of you getting the server's public key - which the browser will ...
2
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1answer
324 views

Snapchat tracking over company WiFi. What can they see, save or open?

I sent a snapchat to a coworker during company time. I was not on the work wifi, but now I believe they may have been. What will my employer be able to see from the snapchat that was sent and opened ...
2
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2answers
63 views

DROWN vulnerability on root domain affect subdomains?

I maintain a departmental server hosted on a subdomain of my organizational network, as in department.example.com. Both example.com and department.example.com use HTTPS, but run on completely ...
0
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0answers
53 views

Would a hard-coded public key or fingerprint protect against MITM?

Say there's a server and a client. Normally to connect and establish an end-to-end encrypted session, they'd have to carry out key exchange, which potentially gives an attacker the opportunity to ...
0
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1answer
661 views

MitM Attacks - Iptables?

I have looked for the answer to this question to no avail, apologies if I missed it. I would like to know how effective iptables would be against MitM attacks - in the following setup: ALLOW INPUT {...
1
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1answer
37 views

Man in the middle with certificate signed by known CA and DNS spoofing can work?

Assuming that I have a certificate for my local webserver signed by a well known CA like Verisign (so it will be trusted by browsers), and I'm able to DNS poisoning in Man-in-the-Middle to redirect a ...
0
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1answer
28 views

How is using an endpoint for public keys secure?

OpenID Connect has discovery endpoints containing a JKWS endpoint to get public keys to validate Identity and Access tokens. So for example: I have a desktop application which gets an Identity ...
4
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1answer
144 views

Man in the middle attack to a website which uses public key pinning

As far as I know, an attacker can intercept an encrypted traffic by adding custom certificate and CA authority into a victim's browser. I wonder if it works if a website uses public key pinning? I ...
0
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1answer
168 views

Is this company's claim to have solved MITM attacks true?

The Daily Mail reported in Dec 2014 about a company that claimed to have solved the MITM attack. Can someone explain how this is possible or what the difference is from TLS?
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1answer
78 views

Forwarding traffic to SSLSplit from Android

I want to forward non HTTP traffic to SSLSplit in order to do a MITM attack. How would I forward the traffic to SSLSplit from my Android?
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4answers
5k views

What stops someone from just redirecting a HTTPS connection to a HTTP version of the site?

Let's say someone does an ARP spoofing or DNS poisoning attack to redirect traffic to their own web server. If the real site has an SSL/TLS certificate, would that stop the hacker from redirecting let'...