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, bridging wlan interface to virtual wired interface at0

I'm trying to execute a Man in the Middle attack on my mobile phone, I have two wireless cards, one inbuilt in the laptop, running AR9285 atheros drivers, the 2nd is an Alfa AWUS036NHA card with an ...
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Arp Spoofing Causing Dropped Connections

I have had a lecture today based on Arp Spoofing. However, i can not get it to work. Scenario: My laptop - running kali Target laptop (housemate - with permission) - running windows 8 Commands ...
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53 views

How to prevent browser from rendering malacious content if request or response is hacked

We are currently working on OWASP security fixes and we identified one attack scenario for which we are trying to figure out a possible solution: User hits a valid HTTPRequest to our application. ...
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62 views

IKEv2 Authentication - why/how does it work?

I am currently trying to understand the IKEv2 protocol which is used for IPsec and am wondering why/how the authentication process works. From my understanding, in the prior IKE_SA_INIT exchange, the ...
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127 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 ...
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53 views

WEP man in the middle

my workplace is currently using a wireless router that is secured using WEP. If I connect a laptop to the wireless router with a cable, would someone that has cracked the password still be able to ...
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36 views

Application of digital watermarking for session hijack

I know digital watermarking can protect the media from man-in-middle and replay attack. Is it good also for session hijack attack or phishing attack?
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50 views

Bogus HostName Causing Suspicion of Man In The Middle

I have servers on a LAN reporting my laptop with a bogus hostname. This is making me suspect a man in the middle attack. Here are some details: From an Ubuntu Linux 14.04 laptop, I logged into an ...
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48 views

Is it possible to perform one-way OTR MITM?

Here's something that is bugging me recently: suppose that me and my friend establish an OTR session and - as a result of that - DH key exchange is performed. My friend verifies my key, but I cannot ...
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145 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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81 views

How to incorporate the man-in-the-middle

I am designing a web-based back-end for an online service. The service could support web based portals and mobile apps as front end. But I am stuck on how to support third-party, i.e untrusted, web ...
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95 views

How is this MITM attack being performed and what steps can I take against it?

Today, when I tried to access the internet (google on HTTPS), my browser (Google Chrome) gave me the following error: I am on my own home Wi-Fi, which has WEP. When I tried to reload google on ...
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458 views

Can a malicious Tor exit node perform a HTTPS man-in-the-middle attack to see/modify your HTTPS traffic?

Let's say I am browsing the Internet using Tor - visiting https://example.com/login.php - and the NSA is operating the Tor exit node which I am currently routed to use. Can that NSA exit relay swap ...
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88 views

Compromised submarine cables and the consequences to internet?

I recently read an article that Google wants to build a submarine cable connecting to my country supposedly to increase overall speed and while I hope my government will never allow this kind of thing ...
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1answer
107 views

What does this mismatching SSL certificate hint at?

I'm currently visiting China, and I use a well known VPN service for both my laptop and my phone. Every now and then, I get certificate errors when using my phone when I'm connected to a VPN, but ...
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1answer
588 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 ...
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43 views

Origins of the “man-in-the-middle” analysis

Who first formulated communication security in terms of the "man in the middle" attacks? The earliest source I have so far is: Larsen, Gerald H. “Software: A Qualitative Assessment, or The Man in ...
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2answers
145 views

Can First Hop Man in the Middle be Defeated with TOR or VPN?

I was reading this article about a certain in flight WiFi provider issuing fake SSL certificates for Google. This doesn't really surprise me all that much since I'm well aware of the concept of ...
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How do certificates work in protecting against a man-in-the-middle attack? [duplicate]

As I understand it, if Alice and Bob wants to communicate securely, they must first agree on the protocols that will be used. Then they must confirm that they are indeed communicating with each other. ...
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68 views

Security of certificate when using DNSSEC

When setting up secure server, it is suggested not to use self-signed certs and instead to be signed by a CA. Of course, post-Snowden we now know that there may be problems with CA's that could allow ...
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4answers
155 views

Is it possible to communicate securely entirely over the internet given a global, resourceful man in the middle?

Assuming a global, resourceful man in the middle, is it possible to Securely communicate (I don't mean storing encrypted data off site) completely establishing and sending messages over the internet ...
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181 views

Are VPNS vulnerable to active man in the middle attacks?

I know that with SSL/TLS, man in the middle attacks are not possible. For example if Alice and Bob are trying to communicate and Trudy is trying to perform a man in the middle attack, then when Alice ...
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How to securely install software on Ubuntu?

How to install a software like Sublime Text on Ubuntu 14.04 LTS and mitigate against a MITM attack? There is a PPA available, but the PPA must be added manually. I don't see any PGP keys or MD5 ...
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171 views

Why is a valid SSL certificate required for SSL-Strip?

From what understand, SSL-Strip sits between the target user and the server, establishing a HTTPS connection between itself and the server, and an unsecured, plain old HTTP channel between itself and ...
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1answer
204 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 ...
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208 views

“What's my IP” shows a different result when running over https than over http [closed]

We had issues with one internet provider, and switched to another one. However, we received word that the new internet provider is somewhat affiliated with the previous. When running a "what's my ip" ...
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120 views

MITM faking certificates

I am looking at the theory behind MITM attacks in order to see some unencrypted packets from the 3DS. From research here is what I understand so far: 3DS > Proxy > Nintendo server I am going to try ...
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186 views

With HTTPS, what information would a MitM attacker be able to glean?

Consider a user accessing a site that is using HTTPS for all its traffic. A hacker is trying to use a man-in-the-middle to snoop on the user. What information can he glean? Obviously the content is ...
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1answer
127 views

Is it possible to intercept traffic by using a WAN facing DHCP server on an ISPs cable network?

I am running pfSense on an edge firewall conncted to a cable line. I can see many DHCP requests hitting my firewall. I guess this requests are getting send by cable modems currently booting up and ...
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87 views

MITM on program with no proxy settings

I'm trying to inspect the traffic of a program (which is running on my computer) that uses SSL over TCP to a non-standard port. The traffic may or may not be HTTP traffic, likely isn't. Neither ...
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1answer
297 views

TLS Authentication/OpenVPN/MITM Attacks on Public Wifi [duplicate]

My question is about how an SSL VPN connection such as OpenVPN is protected against MITM/Spoofing attacks on a public Wifi. For example, if somebody has a 'pineapple' or router setup as a honeypot ...
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124 views

Victim loses Internet connection during MITM attack

I tried to do MITM attack on my network. I enabled ettercap, marked my router as TARGET1 and my second computer as TARGET2. Then I enabled 'ARP Spoofing'. I do not know why - but after this operation ...
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435 views

What is the best way to run MitM attack on my wireless network?

For research purpose, I want to launch a MitM attack on computers that are connected to my wireless network. I wonder what is the best way to do so. Notice that I control the router, and do not want ...
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59 views

BTLE pairing: Where does the code come from?

When trying to pair 2 bluetooth LE devices (e.g. 2 iPhones), a popup shows up that requires to input a code displayed on the other device. I am aware of the concept of out-of-band authentication, and ...
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270 views

Remediation against relay attacks (ie. NFC)

Question first: Is there any remediation for passive MITM? I've come across examples of NFC relay attacks which use phones to get around the proximity requirement for NFC payments. It looks ...
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1answer
134 views

Local AP - Outside Router MitM Attack?

Let's say that we have our computer inside the local network. Our local network is connected to the Internet by AP+Router that connects to the router in other network which is connected to the ISP. ...
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841 views

Intercepting SSL traffic on Android app

I am trying to intercept SSL traffic from my Android app to test the security. I am using certificate pinning in the hopes I can prevent people from snooping. I have tested by configuring ProxyDroid ...
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2answers
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Can I create a fake AP with my wireless card? [closed]

I type iw list and these are the supported modes: Supported interface modes: * IBSS * managed When I run hostapd hostapd.conf I get this: Failed to create ...
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537 views

How well is the SSL/TLS handshake protected against modifications?

The SSL/TLS handshake is protected against downgrade attempts by the Finished message, a signed and authenticated hash of the master secret and all previous handshake messages. Consider a client that ...
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184 views

How much does a GET request over HTTPS reveal to an eavesdropper

Correct me if I am wrong, according to HTTP v1.1 a simple CONNECT request initiates a SSL tunnel between the server and a client. its only after the tunnel is created that the complete GET or POST ...
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280 views

Why Sniff Session Cookies when UN/PW should also be available?

I've recently been reading on session cookies and how they can be hijacked via man-in-middle attacks. It seems this is mainly possible on an unencrypted connection between a client and a webserver. ...
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2answers
186 views

Decrypting TLS Traffic

Context: I want to reverse engineer a protocol in place for the Nintendo 3DS. The implementation however, uses TLS, which makes it difficult to reverse engineer. I'm currently able to sniff packets ...
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3answers
230 views

How to capture the traffic of a computer in my LAN?

I have a machine with the Windows 10 preview installed and I want to capture all the traffic it sends for a day and then block all the MS hosts it sent data to without my direct permission. I don't ...
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6answers
3k views

Does the US government protect its physical internet lines in the US?

It seems like there are lots of ways to prevent man in the middle attacks. I've read many on here and on the rest of the internet. According to wiki you need a secure channel as well to completely ...
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2answers
3k views

Why is TLS_FALLBACK_SCSV secure against a MITM attack?

It is recommended, to mitigate POODLE, if SSLv3 cannot be disabled entirely, to make use of TLS_FALLBACK_SCSV, a signaling cipher suite value that indicates that fallback has occurred. The draft ...
134
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4answers
15k views

Is there anything preventing the NSA from becoming a root CA?

There are now tons of Certification Authorities (CAs) that are trusted by default in major OS's, many of which are unrecognizable without online lookup or reference. While there have been attempts ...
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382 views

SSLv3 cannot be disabled, can I use weak cipher as a workaround?

We're using lighttpd 1.5.0-2349 which unfortunately doesn't support the option to disable SSLv3. I think a potential workaround would be to only allow it to use some cipher which has already been ...
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189 views

What to do about “approved” direct banking MITM sites like sofort.com?

Brussels Airlines allows several payment types, only two of which are free: Maestro and Sofort Banking: The second option was new to me, but direct debit is usually a free and practical way to pay: ...
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85 views

Securing commands

For a project I'm working on, I need to securely send commands between servers. These commands should not be able to be altered, and there should be some security about not being able to just keep ...
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176 views

arp spoofing in VMware ESXi

I have a VMware ESXi server and I want to create two virtual machines with specific public IP addresses. Is it possible for the 2 virtual machines to sniff each other's traffic ? If so how can it be ...