2
votes
1answer
47 views

API request modification

I am building an API that returns data about companies Multiple applications will access the API, some of these applications will have access to one company, some to multiple companies. When a request ...
2
votes
1answer
87 views

How to simulate man in the middle attack in android emulator?

I am new to pen-testing. Yesterday i analysed one android application using dex2jar application and i saw an android application implemented https connection using empty trust manager. class miTM ...
2
votes
4answers
140 views

Mitigating SSLStrip by only serving a site over HTTPS?

So I just learned about SSLStrip now--I feel like I'm so late to the game. What I want to know is: If your site only serves content over HTTPS and hard fails on HTTP requests, with no redirect, are ...
0
votes
2answers
65 views

Installing self-made cert as trusted CA on windows?

I'm looking into using mitm-proxy, but part of the process of filtering/snooping SSL is that you must generate and install a root cert as a trusted CA, so that mitm-proxy can generate and throw out ...
0
votes
1answer
137 views

SSL / TLS Renegotiation Handshakes MiTM Plaintext Data Injection- medium or low risk?

This is a Nessus finding, which is considered medium by default. Basically it may allow for some plaintext injection which may allow for some man in the middling. My question is, has these been ...
2
votes
1answer
42 views

Inconsistant browser warnings for SSL

I am doing a penetration test at the moment, where the client has deep packet inspection for SSL enabled (my guess), as every SSL connection seems to being MITMed. Now, some HTTPS sites, like Gmail, ...
2
votes
5answers
413 views

Does the SSL termination happen with the ISP or a mobile service provider? [duplicate]

Is it true that when I connect to a site over HTTPS , my mobile service provider or the ISP gets to snoop in the communication? Can they play MITM?
1
vote
1answer
32 views

series of SSL errors across multiple sites — reason for concern? [closed]

Rebooted my rMBP late 2013 recently, and saw a set of SSL errors (unable to verify certificate) across a wide range of sites (google, gmail, mubi, medium) and also in the Calendar app as it tried to ...
66
votes
5answers
6k views

How can my employer be a man-in-the-middle when I connect to Gmail? [duplicate]

I'm trying to understand SSL/TLS. What follows are a description of a scenario and a few assumptions which I hope you can confirm or refute. Question How can my employer be a man-in-the-middle when ...
0
votes
1answer
38 views

MITM protection, key distribution

I want to make sure each of my apps users only get their own data, and that nobody tampers with it or sniffs it in a MITM fashion. Encryption of everything should be the solution, right? But how do I ...
1
vote
1answer
59 views

Is code-signing with a non-ssl timestamp unsafe?

Assuming your code-signing tool is secure (e.g., does not suffer from buffer overflow exploits and the like), is there any reason to be concerned if a time-stamping service is not running over SSL? ...
1
vote
2answers
53 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 ...
1
vote
3answers
115 views

Is it secure to be using LDAP, or is LDAPS the only secure option?

I am currently using an LDAP setup. I am wondering if it is secure from Man-in-the-middle attacks or other vulnerabilities?
0
votes
1answer
106 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 ...
1
vote
1answer
92 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 ...
6
votes
3answers
1k views

Why can't we do MiTM attacks when using secure connection

I have this silly question that is bothering me. When not using secure connection (HTTP for example) cookies can be intercepted and used to connect to the site as if we have the id and password. We ...
-1
votes
1answer
625 views

Why is the deprecated SSL 2.0 protocol considered insecure and how can it be exploited?

I am making a presentation to the class about "SSL 2.0 deprecated protocol" and I really have no idea how this exploit is used or how the attacker can use this vul. I understand the impact of this ...
4
votes
1answer
78 views

Decline any custom ssl certificate in a mobile application

Consider the following scenario. Eve creates an access point in a public place. Alice connects to the AP via mobile phone and starts browsing the Web. Eve redirects Alice to a registration page and ...
2
votes
1answer
105 views

MITM SSL connection

I read this article today about an SSL MITM. I am trying to understand this attack. This may be a naive question. My understanding is that the WebView sends a request to domain name, the server ...
11
votes
2answers
1k views

Is Apple's push notification service implementation vulnerable to a MitM attack

Recently(more info) I've spotted a strange message in the logs on my quite recent, fresh installation of OS X Mavericks 10.9.2 Apr 27 15:26:47 Ivans-MacBook-Pro.local apsd[194]: Unrecognized leaf ...
2
votes
2answers
160 views

What prevents me from using ARP poisoning to force a client to use HTTP?

So I was just thinking about how ARP poisoning can be used to intercept a clients request, forge an SSL cert, and send it back, with the caveat of not meeting certificate validation, but what if I ...
2
votes
1answer
267 views

Why is the SSL handshake not shown in Wireshark?

I am trying to figure out if some Android applications with login functions are vulnerable to man in the middle attacks or not. I have set up a MITM proxy (as an attacker) on my lubuntu machine and ...
0
votes
2answers
137 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
votes
2answers
751 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 ...
2
votes
0answers
69 views

Threats against website running without TLS but with PGP messages

Are there any threats against a web site that isn't running SSL but uses PGP to encrypt all information to the server (except session identifier) The information flow is as such: 1. Session ID set on ...
14
votes
5answers
3k views

How safe is SSL? [closed]

If I got an SSL certificate for my website and use an SSL secured connection (HTTPS), is this safe enough to send my login and password data or should I add some encryption or hashing? And how safe ...
0
votes
1answer
151 views

CAPTCHA Bypassing with Captcha Clipping Attack is Like MiTM between servers, Is that even Possible?

Sorry if this is a very amateur question. I was checking out some article regarding CAPTCHA bypassing. And I though this article seemed interesting ...
1
vote
1answer
106 views

Behavior of trusting a self signed SSL certificate

I have just deployed a Turnkey appliance which comes configured with a self signed certificate. This is a server that only I will be using, so I don't want to pay for a certificate. If I add this ...
1
vote
1answer
121 views

Legitimate use case of man-in-the-middle attack for DPI?

I am working on a device that should sit between the end-user and the server, and that will do deep packet inspection. It is basically a parental control node. This device will be sold to the user, so ...
2
votes
0answers
226 views

What is going on with my download of the recent Apple security update?

The update in question is the Mavericks combined update which, among other things, claims to fix the recent SSL vulnerability/gaping hole. This issue really annoyed me, so I decided to procure ...
1
vote
1answer
87 views

Is it dangerous to sync my data with my personal server through unencrypted http?

Since Apple force iPhone users to use iCloud to sync contacts & calendar, I moved to a local ownCloud instance that works well. However, it would be more convenient if I could sync everywhere and ...
1
vote
2answers
116 views

Why do client certificates not protected against improper server certificate validation

I understand the question of client certs and MITM attacks has been asked several times, but I don't believe this specific scenario has been answered. It was my (seemingly incorrect) assumption, that ...
1
vote
2answers
418 views

Actually, isn't it bad to redirect http to https? [duplicate]

I have a two-part question about question #570288 over on ServerFault. Question: Is it bad to redirect http to https? Accepted answer (185 up-votes): [...] Hell no. It's very good. Part 1 ...
0
votes
2answers
571 views

Is using an SSL Session ID along with a cookie based session verification more secure or not really?

I am using Django which is a web framework for Python. I love it but the session handling is cookie-based. Now over SSL I'm sure it's reasonably "secure" but I don't think there is any kind of fail ...
3
votes
2answers
351 views

Any MITM tool for forcing weak SSL cipher suite?

Let's say I'm trying to reverse engineering communctions between an Android app and a web server uing HTTPS. At beginning, I tried to do MITM using webmitm and a fake cert. But the app failed to ...
0
votes
1answer
2k views

Javascript http to https redirect - how vulnerable/how secure? [duplicate]

If I had a website http://site.com redirecting to https://site.com via javascript (with a HTTP/1.1 403 Forbidden), what are the attack vectors I could be vulnerable too? Why is this not a good ...
3
votes
2answers
523 views

How a provider can tap an internet line even for SSL encrypted connection [duplicate]

I heard once from someone I trust, that the French governement is about to buy and certify a software to put on tap an internet line even for HTTPS connection. I don't really care about the legal ...
1
vote
1answer
275 views

Does Skype Trump SSLStrip?

I am using SSLStrip against my own computer, but am not being redirected to HTTP. Skype automatically starts up and logs in at my computer's startup, so I was wondering whether the fact that port 80 ...
0
votes
1answer
209 views

Sniff HTTP(S) from PPTP VPN server

I've setup an PPTP VPN server on my Debian 7 server. I'm using this VPN in combination with my Android phone to ensure a secure connection. However, i'm getting curious of what my phone is sending ...
-1
votes
3answers
96 views

MiTM attacks SSL to SSL

I was wondering what ways there are to MiTM a client link to the server where I would give them a public key that they would then send their data via https://example.com using my key. Then without ...
0
votes
1answer
199 views

How does the MITM (Man in the middle) attack happen with respect to SQRL

I recently looked into SQRL and was intrigued by its simplicity. At first glance it seemed reliable and its author claimed it was inherently fail-proof against phishing and MITM attacks. But upon ...
0
votes
1answer
379 views

How to MiTM SSL on a device with no proxy settings

I'm trying to MiTM a device on my network and having some problems. SSLstrip doesn't work because the URL is https://, and I can't use something like Fiddler because the device has no configurable ...
5
votes
3answers
606 views

How to Man in the Middle Internal AD Traffic

A coworker asked me why I thought encrypting internal AD Bind communication was important. I said because I follow a standard security practice, but couldn't actually articulate how an attacker would ...
0
votes
2answers
197 views

Man-in-the-middle SSL generation on request possible

I am doing some research on man-in-the-middle focusing on SSL in particular. I have been looking into generating a certificate on request when a client connects and requests a secured page. ...
1
vote
2answers
186 views

Understanding certificate security

I am reading Computer Networks by Tanenbaum and Weatherall. In chapter 8 they describe secure communication using public key exchange via certificates. They describe a situation where Alice is sending ...
5
votes
0answers
608 views

Why is it not possible for an ISP to man-in-the-middle attack an SSL connection? [duplicate]

If the ISP carries my data, why do people seem to think they cannot see the contents? Wouldn't they be holding the key?
3
votes
2answers
250 views

Is it true, that using symetric encryption, if attacker knows encrypted text, original message, and algorithm means he can calculate the secret?

I am a newbie in the security field, so sorry for the naive question. In my understanding, using symetric encryption, if attacker knows encrypted text, original message, and algorithm means he can ...
6
votes
2answers
3k views

How to detect the NSA MITM attack on SSL?

As Bruce Schneider reported here... https://www.schneier.com/blog/archives/2013/09/new_nsa_leak_sh.html ...the NSA reportedly performed a MITM attack on a company in brazil and decrypted their SSL ...
5
votes
1answer
9k views

How does SSLstrip work?

I've been reading up on SSLstrip and I'm not 100% sure on my understanding of how it works. A lot of documentation seems to indicate that it simply replaces occurrences of "https" with "http" in ...
1
vote
2answers
661 views

Sniffing From Squid SSL

I created a Squid proxy and a self-signed SSL certificate. The SSL certificate on the server is a private certificate linked to the ssl-bump feature. I am using tshark to dump the SSL traffic, but I ...