Questions tagged [hsts]

HTTP Strict Transport Security is a mechanism enabling web sites to declare themselves accessible only via secure connections and/or for users to be able to direct their user agent(s) to interact with given sites only over secure connections. It is defined by RFC 6797.

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61 views

HSTS without auto-upgrading HTTP to HTTPS

I have a website hosted at https://example.com/mysite. If you navigate to http://example.com/mysite, you get a 404. Everything that comes in over HTTP gets 404'd. I was dinged on a security audit ...
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1answer
6k views

“google.com” is not HSTS protected?

Issue: Oftentimes people enter google.com directly in the browser's address bar without including either the http:// or https:// prefixes. Using Chrome DevTools on a fresh incognito session, I ran the ...
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2answers
128 views

MITM attack with HSTS implemented websites

I want to perform a Man-in-the-Middle attack against my own network for educational purposes. I want the following scenario: Perform a MITM attack with Bettercap, navigate to a website and accept the ...
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1answer
35 views

Initial requests sent over HTTP by default [duplicate]

Before the invention of HSTS security policy, if a user didn't specify the protocol in the URL, were all the initial requests sent over HTTP by default for every website?
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101 views

Does HSTS prevent packet capturing in Wireshark

If a site is enforcing HSTS, does that prevent packet capturing of a GET requests in Wireshark? If it prevents it, is it possible to achieve the same using Bettercap or any other alternatives? ...
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112 views

Is HTTP Strict Transport Security needed when only listening on port 443?

Is HSTS needed on a server that listens only on 443 port? If a MITM attack is carried out, the server won't respond on HTTP.
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2answers
346 views

Should I return an HSTS header for 404 error pages?

I setup our .NET web application so that it has HSTS enabled. I verfied this by going to https://gf.dev/hsts-test and put in our URL and it shows that HSTS protection is there. The result shows: ...
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2answers
788 views

What are the dangers of not setting the HSTS header on every response?

A web application only sets the HSTS header in responses to requests to /assets/*. Any other response does not include the HSTS header. While it does seem insecure at first, any browser opening the ...
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2answers
61 views

What is the relevance on HSTS on HTTP application?

We all know that HSTS should be implemented on HTTPS application. Recently, I came across an application HSTS implemened on HTTP application. I need to answer to the client. According to me, HSTS ...
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2answers
59 views

Strict Transport Security (HSTS) HTTP Response Header Security Related Question

I always thought HSTS headers were server specific, what reason would cause this header to not be invoked across certain URI endpoints i.e. HSTS header is in response to the root direct /, as well as /...
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Does HSTS prevents MITM using a valid certificate?

Let’s consider this scenario: An attacker got a valid certificate for a HSTS protected domain https://example.com. Can he still perform a man-in-the middle attack even if the website is already ...
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2answers
3k views

Is there any point in having the HSTS header enabled when using HTTP/2?

As a protection against attacks such as SSLstrip, the HSTS header prevents an attacker from downgrading a connection from HTTPS to HTTP, as long as the attributes of the header are properly configured....
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1answer
82 views

isn't it a security gap if TLD hostname doesn't send the strict-transport-security header?

If you connect to https://google.com (without www.) you get a HTTP 301 redirect to https://www.google.com/ . Then if you connect to https://www.google.com/ the response includes the strict-transport-...
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Why did browsers choose to implement HSTS with Preload over checking custom DNS information?

Browsers and standards bodies favor HSTS with Preload because it avoids ever sending an http request to a website that supports https. This is good, because cleartext http requests can be intercepted ...
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2answers
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How can HSTS preloading be avoided?

Preloading is a primitive operation. You must preload for a year or more, and "be aware that inclusion in the preload list cannot easily be undone," according to the registration tool. Therefore, if ...
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3answers
136 views

Does HSTS provide security advantages on private networks?

For systems that only connect to the internet via a single dedicated private network (no WiFi hotspots), and assuming no systems or components on that network are compromised, does HSTS (HTTP Strict ...
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1answer
759 views

Does HSTS protect against a rogue CA issuing a illegitimate valid certificate?

Does HSTS protect a domain from a publicly trusted CA that has gone rogue issuing a illegitimate valid certificate? Examples of publicly trusted CA's would be any of the members of the Mozilla CA ...
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1answer
103 views

Should the Strict-Transport-Security max-age be tied to the duration of the certificate?

I understand the principle of HSTS, and the fact that the choice of max-age limits how long a visitor could potentially be locked out if the site somehow lost its certificate and had to go back to ...
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382 views

Is it possible to browse HSTS sites over SOCKS5 proxy?

I am unable to browse HSTS websites using SOCKS5 proxy in chrome browser...getting this error... This site can’t be reached The web page at https://www.instagram.com/accounts/login/?hl=en might ...
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1answer
88 views

Does HSTS preload includes subdomains?

i know that you can preload your domain if you have everything with a valid HTTPS vertificate, but after preloading the domain if i go to subdomain.example.com is it going to me preload the same way ...
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includeSubDomains is not shown in https header after enabling hstsIncludeSubDomains in Tomcat

I enabled HSTS in the Tomcat web.xml like this: <filter> <filter-name>httpHeaderSecurity</filter-name> <filter-class>org.apache.catalina.filters....
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262 views

HSTS preload and requisites on domain - subdomains must be added too?

I found that the security header for protection against mitm attacks in first connection is to implement HSTS preload directive and add the list of google: https://hstspreload.org/ However the ...
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no HSTS but still protected to mitm attacks?

i am aware of HSTS and their directives... If you had enabled HSTS on your site however, and this user has visited your site before, the browser will remember it should go back to https. As the fake ...
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1answer
74 views

How to protect against mitm attacks in first connection? - no HSTS Preload

i have been searching around this area about mitm attacks and realize that every single page that doesn't have HSTS preload is vunerable to mitm attacks in first connection to the site. the solution ...
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1answer
1k views

How to force a browser when connecting to a specific domain to be https only using only the client machine?

Is it possible to force a client (browser or host machine or etc) to only make https connections to a specific URL/domain? (preferably non-admin/root fixes if possible) Here is a fabricated ...
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1answer
294 views

HSTS and TLS redirection: What is the correct order?

Currently I am trying to setup my apache server for HSTS. Therefore my .htaccess looks like this: <IfModule mod_headers.c> Header set Strict-Transport-Security "max-age=63072000; ...
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0answers
48 views

Risks of not enabling HSTS on a static content subdomain. Even though main domain does have hsts

I'm investigating an issue where our static content (js, css) is deployed in AWS Cloudfront under a subdomain of our main website and doesn't have HSTS enabled. The main domain does have HSTS enabled ...
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1answer
62 views

HSTS mixed with HTTP resources

We have a container site which implements HSTS and a video sharing site which is using HTTP only and doesn't have TLS implemented, nor will it. How does one avoid mixed content in container site and ...
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1answer
94 views

Is there *ANY* conceptual downside to enabling preloaded HSTS on greenfield

Referencing this: https://hstspreload.org/ There's a bunch of stuff about making really sure that it all works before you get them to pre-load it: when testing first test with a max-age of 5 minutes,...
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0answers
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Is HSTS necessary or can I just write .htaccess code to always redirect http to https? [duplicate]

Is HTTP Strict Transport Security (HSTS) necessary or can I just write regular .htaccess code to always redirect http to https?
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Can a single domain be deleted from HSTS list through GPO

I have proxy performing a IWA authentication which intercepts the web request and redirects it towards the proxy's host name for auth. The redirect url is over http however the HSTS list on the end ...
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0answers
177 views

Experimenting with SSLStrip+ on the same machine

I am trying to play around to understand how SSLStrip+ works by: $ cat /proc/sys/net/ipv4/ip_forward 1 $ sudo iptables --flush $ sudo iptables --flush -t nat $ sudo iptables -t nat -A PREROUTING -p ...
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1answer
120 views

HSTS vs RewriteRule

I've recently read that HSTS is designed to avoid some of the vulnerabilities associated with htaccess redirects to force HTTPS, because the browser can be made to ignore them. That said, many of our ...
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2answers
1k views

HSTS for android apps?

Websites such as Facebook visited on browsers have the HSTS capability which is one more layer of security for TLS from some attacks. What about, in particular, the Facebook android app? Does it ...
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2answers
4k views

How is danger / badidea / thisisunsafe justified?

The HSTS standard states the following: 12.1. No User Recourse Failing secure connection establishment on any warnings or errors (per Section 8.4 ("Errors in Secure Transport Establishment"...
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0answers
370 views

Why are banks largely absent from the HSTS preload list?

There seems to be widespread support for the idea that election-related websites, of all things, should be resistant to man-in-the-middle attacks. The secret ballot makes detecting and recovering from ...
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4answers
1k views

How do mobile apps prevent HTTPS MITM attacks when the user installs the attacker's CA certificate?

I am using a mobile app that installs a fake trusted CA certificate and therefore can capture the HTTPS traffic of other apps. Most of the time, this MITM attack is successful. However, I noticed ...
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1answer
3k views

HSTS doesn't work on browser when dealing with a self-signed certificate

We have a web portal and I need to add HSTS header in the response. Ours is an on-premise solution, so we use a self-signed certificate. I have added the hsts header in the response & I need to ...
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1answer
911 views

Why does bettercap and sslstrip work sometimes on Google and Facebook?

sslstrip and bettercap work “sometimes” on Chrome browsers on sites such as Facebook, Google, AOL, and other sites that use preload HSTS. Why does it work sometimes when it shouldn’t work at all?
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1answer
475 views

Bypassing HSTS and Public-key pinning with lookalike characters

Using lookalike character symbols to circumvent HSTS and public-key pinning with DNS spoofing via MITM Attack. Redirect: facebook.com --> faceḃook.com -- I have seen SSLStrip+ using the technique ...
6
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1answer
2k views

Does Strict-Transport Security Header (HSTS) need to be applied to non 200 response pages (e.g. 403, 302)

I have an application that is protected by Cloudflare. The application responds with a HSTS on all of the other pages except HTTP status 403 Forbidden and 302 Moved Temporarily. It seems to be ...
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3answers
96 views

What is the use of HSTS on a website? [duplicate]

I know HSTS redirects HTTP requests to HTTPS for the target domain, or it helps in restricting downgrading HTTPS to HTTP. But I don't get the basic idea behind HSTS. I have gone through various ...
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1answer
246 views

How is HTTP converted to HTTPS when no HSTS is present?

Suppose you have a website http://example.com Now, you also have an SSL certificate, which means users can access the site securely using https://example.com But if I just write http://example.com ...
3
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2answers
794 views

Basic Auth over HTTP redirected to HTTPS - does it leak?

I'm creating a Flask API and I'm somewhat unfamiliar with the attack surfaces that exist in redirecting from HTTP to HTTPS, or requesting HTTP when HSTS header has been sent previously. Lets say a ...
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1answer
330 views

How does faked DNS manage to downgrade preloaded HSTS?

Yesterday, in a bid to entertain myself for a while, I was playing around with DNS servers. I set up a DNS server locally, which I then set as my primary DNS server. Within it, I added some records ...
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0answers
95 views

HSTS over HTTP-CDN-HTTPs chain [closed]

I'm using CloudFlare's flexible SSL: Flexible SSL: You cannot configure HTTPS support on your origin, even with a certificate that is not valid for your site. Visitors will be able to access ...
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1answer
1k views

Google's Certificate Fingerprint doesn't match with the Fingerprints in the Chrome's “net-internals” configurations

As you may know, you can query chrome's HSTS/PKP sets for a domain in the page chrome://net-internals as below: As you see above, there are four SHA256 hash values (in the middle of page and in ...
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2answers
2k views

List of sites that still dont support HSTS?

I'm working on an article for work and seeking a list of the top ~500 websites (ranked by Alexa) that still don't have support for HSTS. Does such a list exist? I'm not getting any interesting hits ...
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2answers
550 views

Do you need DNSSEC if you use HSTS? [duplicate]

I'm trying to understand the benefits of DNSSEC. If a user goes to my site example.com and the DNS cache was poisoned redirecting the user to the bad guy's IP, what would happen? I've enabled HSTS. ...
16
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2answers
2k views

Security benefit of browsers automatically rewriting HTTP to HTTPS? [duplicate]

I often use a guest WiFi which does the usual intercept; attempt to navigate to any HTTP website and it redirects you to the "Agree to our ToS" page, after which it will permit any traffic from your ...