SSLstrip is an attack against mixed HTTP/HTTPS connection where a man-in-the-middle downgrades HTTPS links to HTTP.

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190
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14answers
30k views

My college is forcing me to install their SSL certificate. How to protect my privacy?

My college administration is forcing us to install Cyberoam Firewall SSL certificate so that they can view all the encrypted traffic to "improve our security". If I don't install the certificate than ...
37
votes
3answers
54k 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 ...
24
votes
2answers
568 views

Bypassing HTTP to HTTPS cached 301 redirect to use SSLstrip

I'm doing some pen. tests on a HTTPS (443) server that does not have HSTS implemented (no HSTS headers on response and the address is not on Chrome HSTS preload list). The problem is that in my ...
18
votes
4answers
7k views

Options when defending against SSLstrip?

I'm wondering, does anyone have any suggestions to defend against SSLstrip particularly?
12
votes
5answers
3k views

Is using “HTTPS everywhere” extension secure?

I would like to know if one should use 'HTTPS everywhere' extension? Is it secure to use it? Are there any better alternatives? HTTPS Everywhere is a Firefox and Chrome extension that encrypts ...
12
votes
1answer
154 views

How can mobile sign-on be secured from imposter authentication screens?

History seems to have come almost full circle where old issues are shown in new/emerging technologies. Background If you trust the operating system, Windows originally had the Control - Alt - Delete ...
10
votes
2answers
8k views

How to thwart sslstrip attack?

I need help understanding the dynamics of an sslstrip attack. I'm using it to test the security of a site that I own. I can successfully sniff the victim (in this case, myself) credentials over the ...
9
votes
1answer
3k views

How does bypassing HSTS with SSLSTRIP+ work exactly?

I am doing research on bypassing HSTS. I read this guide on bypassing HSTS using SSLSTRIP+, but there are a few things that I don't understand. First thing to do is to fire up MITMf in SSLstrip+ ...
8
votes
2answers
3k views

HSTS bypass with SSLstrip2 + DNS2proxy

I am trying to understand how to bypass HSTS protection. I've read about tools by LeonardoNve ( https://github.com/LeonardoNve/sslstrip2 and https://github.com/LeonardoNve/dns2proxy ). But I quite ...
6
votes
1answer
419 views

Is an HTTP 301 redirect to HTTPS, insecure?

For a website, I force a 301 redirect from http://login.example.com to https://login.example.com using a .htaccess file. As I read in this question this still imposes a security threat. I'm wondering ...
5
votes
4answers
3k 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 ...
5
votes
1answer
214 views

Ways to defeat SSL

I saw this video in which the guy talks about ways to defeat SSL. But the video is 4 years old. I wanted to know if these attacks are relevant even now, or some updates have been made to tackle these. ...
5
votes
2answers
334 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 ...
4
votes
3answers
2k views

Is a company website secure against sslstrip if it doesn't use ssl on homepage but ssl everywhere else?

Most ecommerce websites use SSL/TLS when you want to log. But most have homepage using http only. Is it enough to have SSL/TLS on login page and logged page to prevent sslstrip ?
4
votes
2answers
97 views

Is it possible to retrieve data from a intermediate node in Tor browser

I'm using Tor browser for my internet surfing and check my email, my questions are Is my internet services provider able to see the websites I visited Is it possible to retrieve a login information ...
4
votes
2answers
160 views

SSLStrip still HTTPS

I did all the configuration right. IPtables, port forwarding, ARPspoof, everything. However, in the browser websites like Facebook and Twitter are still HTTPS. What am I doing wrong?
4
votes
1answer
386 views

Why does sslstrip+ fail to intercept the traffic from websites like facebook and gmail?

I have been reading an article about sslstrip and mitm. Before the introduction of HSTS it was possible to strip ssl and send an insecure http page to the victim. Anyway it was overcome by using HSTS ...
4
votes
1answer
367 views

Man in the Middle Attack against NTP

So, lately I've been really into penetration testing and learning the nitty-gritty of tech. I'm dong courses on computer architecture, cryptography, surveillance law, and computer networks. I never ...
3
votes
1answer
78 views

Does HSTS make using a public WiFi safe?

What attacks, if any, are possible if I connect to a public WiFi network and only use my computer to access a previously-visited site that uses HSTS. I believe that attacks such as SSLstrip are not ...
3
votes
2answers
5k views

Protecting against SSL Strip [duplicate]

I've read you can attack connections using tools like sslstrip, if you are on the same network. So what ensures that our SSL connections remain safe? Does it depend on the cert strength? Do you ...
3
votes
1answer
3k views

How Chrome avoids sslstrip?

I'm trying out Moxie's sslstrip tool in my pentester lab. It works in all my VM's but no in all browsers. Firefox and IE are vulnerable but Chrome seems to has a protection against. Anyone know how ...
3
votes
2answers
226 views

SSL stripping in home network

I am trying to monitor the traffic of some "smart devices" in my home (TV, coffee machine, ...) but most of them communicate over SSL. What possibilities are there to look into SSL encrypted ...
3
votes
1answer
45 views

What was the first version of Android to use OpenSSL (and what version was it)? What was used prior?

Android 1.6 source is the earliest I can find that references openssl (i.e., has OPENSSL_VERSION[_TEXT] defined The script I ran to get these versions was: $ git clone ...
3
votes
2answers
67 views

SSL browser session keys

I am trying to export/write the SSL master secret and keys to a file from the chromium browser. I would appreciate if someone could advice me how to do this. To write the premaster secret we can ...
3
votes
1answer
121 views

Is there an HSTS equivalent for DNSSec?

Is there any way to set a DNSSec-always policy similar to how HSTS commands Web Browsers to always use HTTPS? This would mitigate a DNSSec-strip attack (similar to SSLStrip) I'm also unclear if this ...
2
votes
1answer
8k 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 ...
2
votes
2answers
392 views

How to intercepting iOS HTTPS traffic

How can I intercept & parse through the SSL traffic (incoming & outgoing) generated by my iPad application?
2
votes
1answer
126 views

Can cascaded routers protect inner network's machine from attacker from outer network?

Given: Outer Network router A wan ip 209.123.12.11 address 10.10.0.1 machine A address 10.10.0.10 gateway 10.10.0.1 Inner Network router B wan ip 10.10.0.100 address 192.168.10.1 ...
2
votes
1answer
141 views

Using SSLStrip, password is still encrypted

I did SSLStrip on my network (for educational purpose only!) And I've got the username and all. ...
2
votes
1answer
2k views

How to secure or (Ensuring Integrity) of Web Data in transit and in store?

Consider (usual scenario) You own a Shopping Cart Website and hosted on Internet, now, your hosting company provides you database to store your data. If talking about security, we need it for: ...
1
vote
2answers
2k views

SSLStrip vs HSTS

I've heard about the new SSLStrip and how it is able to bypass HSTS. Where can I find an article that talks about this? How does this work? Where can I download it? Moxie's website has not been ...
1
vote
1answer
65 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?
1
vote
2answers
71 views

Would MITM be able to manipulate the X-Frame-Option

I was wondering if the following scenario was realistically achievable. We have a Network with a Computer that is used by Bob. He is security conscious person and uses a password manager. His ...
1
vote
1answer
2k views

sslstrip works with Internet Explorer only?

Ive been playing around with sslstrip, arpspoof and ip_forward. I read about the whole process at: http://www.thoughtcrime.org/software/sslstrip/index.html My goal was to sniff HTTPS connections, ...
1
vote
2answers
737 views

How do I perform a legal SSL MitM attack for my company?

I have been given a task to test some of our company's security. I have SSL stripped before but on a very basic level and now days with the security is a bit harder. I want to allow all HTTPS traffic ...
1
vote
1answer
148 views

SSLStrip performs DOS

I was trying SSLstrip on my Windows PC as a target since Internet Explorer seems to be the only browser vulnerable to this attack. I deleted all my browsing history and when the site gets stripped to ...
1
vote
3answers
586 views

SSLstrip attack on HTTPS request

Can an SSLstrip attack take place even if the client types https:// instead of http:// ? I have read that an attacker can monitor for HTTP requests and redirect them to HTTPS. But I am curious to ...
1
vote
1answer
58 views

Does SSL/TLS have the feasibility of detecting malicious things during transmission? [closed]

As per my knowledge the current implementation of SSL/TLS does not have the capability to identify the data is malicious or not during the transmission or before encrypt the data. If its have , kindly ...
1
vote
1answer
438 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 ...
1
vote
0answers
108 views

SSLStrip and bank portals [closed]

I am trying to use SSLstrip tool with Ettercap on Kali Linux to attack my personal bank account and yahoo account for testing purposes. I followed the instructions of this video (I run it on Kali ...
1
vote
0answers
54 views

SSLStrip not working on custom ports

I have been using sslstrip for a while and it works fine on websites on which HSTS is not enabled. However when the SSL server is running on some custom ports sslstrip fails. eg: For links like ...
1
vote
1answer
57 views

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?
0
votes
1answer
23 views

Which HTTPS certificate is the content verified by if the content comes from multiple servers?

If a webserver has an HTTPS certificate and a page on the server pulls resources from other webservers - maybe a CDN with a protocoless path, or not, for things like static images, stylesheets, and ...
0
votes
1answer
96 views

Redirect from HTTP to HTTPS; SSLStrip

Our web app home page redirects from HTTP to HTTPS. Our security consultant has told us this is a significant security weakness, that the redirect could be intercepted e.g. by SSLStrip. And therefore, ...
0
votes
1answer
32 views

Could you add SSL to a stripped stream?

I have been thinking about an attack for SSL that would allow a third party to log all transmitted data. My idea is that you modify the client to connect to the server without SSL enabled and modify ...
0
votes
1answer
132 views

Website using http and https

Is there any method to know whether a website is https only or uses http webpages as well?Can it be done without using browsers cache?
0
votes
1answer
448 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 ...
0
votes
1answer
825 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 ...
0
votes
1answer
53 views

How does SSLStrip grab traffic?

In Marlinspike's description on how to set up SSLStrip, he says to enable forwarding echo "1" > /proc/sys/net/ipv4/ip_forward then redirect traffic from port 80 to the SSLStrip listen port ...
0
votes
1answer
56 views

sslstrip not working in LAN

I have a LAN with 3 machines connected to a switch. Two machines run Ubuntu 15.04, one with Apache SSL installed which works as the webserver. Another machine also running Ubuntu serves as the client. ...