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getssl-pro · 10 months ago

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SSL証明書のセキュリティリスクと対策：最新の脅威に対応する方法

ウェブサイトのセキュリティを維持するためにSSL証明書は不可欠ですが、依然としていくつかのセキュリティリスクが存在します。

これらのリスクを理解し、適切な対策を講じることで、サイトの安全性を強化することができます。

https://getssl.pro/contents/archives/110

#getssl #ssl #ssl証明書 #セキュリティ

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thetechijack · 4 years ago

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How to get an ssl certificate for your website to keep it safe and secure.

#ssl #getssl #bestsslprovider

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tap-tap-tap-im-in · 3 years ago

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I have never paid for a single SSL cert since making my website.

It used to be a really obnoxious process to update it, because it had to be done every 3 months and because I don’t pay anyone to do it I had to do it manually (GoDaddy charges for autossl). It used to take me an hour, and I’d have forget the process every time. But now I’ve got a script I’ve found “getssl” (<- Links to the github repo), that automates the domain CSR & verification, so all I have to do is run the script and install the resulting certificates. Takes about five minutes to install the four certs I’m maintaining.

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just4programmers · 7 years ago

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Securing an Azure App Service Website under SSL in minutes with Let's Encrypt

Let’s Encrypt is a free, automated, and open Certificate Authority. That means you can get free SSL certs and change your sites from http:// to https://. What's the catch? The SSL Certificates only last 90 days - not a year or years. They do this to encourage automation. If you set this up, you'll want to have some scripts or background process to automatically renew and install the certificates.

I run nearly two dozen websites (some small, some significant) on Azure. Given that Chrome 68+ is going to call out non HTTPS sites explicitly as "Not secure" in July, now's as good a time as any for us to get our sites - large and small - encrypted. I have some small static "brochure-ware" sites like http://babysmash.com that just aren't worth the money for a cert. Now it's free, so let's do it.

In some theorectical future, I hope that Azure and Clouds like it will have a single "encrypt it" button and handle the details for us, but as of the date of this blog post, there's some manual initial setup and some great work from the community.

There's a protocol for getting certificates called "ACME" - Automated Certificate Management Environment - and the EFF has a tool called Certbot that helps you request and deploy certs. There is a whole ecosystem around it, and if you are running Windows/IIS you can use a great simple ACME client called "Win-ACME." There are also UI's like Certify SSL Manager and PowerShell commands for ACME and systems like "GetSSL - Azure Automation," so you can feel free to roll your own script in an afternoon. Again, if you have a Windows VM and IIS, it's pretty straightforward and getting easier every day.

I'm currently using Simon J.K. Pedersen's lovely (and volunteer and unsupported, so be nice) Azure Let's Encrypt Web App Site Extension. I followed the instructions here but hit a few snags and a few things that aren't totally obvious. Many kudos and thanks to Simon for his hard work on this, as he's saving us all many hours of trouble!

Securing an Azure Web App with Let's Encrypt and the (unofficial) SJKP Let's Encrypt Site Extension

I'll go and secure BabySmash.com right now. Make a text file and keep track of these few things.

What's our checklist?

Azure Storage connection string - You'll need one for the extension to store state.

App Service Hosting Plan and App Service Resource Group Name - Ideally your "plan" (the VM your site runs on) and your site are in the same Resource Group (a resource group is just a name for a pile of stuff)

Service Principal Client/Application ID - This is like an account that the Site Extension will run as to do its job. It's an "on behalf of" delegate that will automate the changes to your site. You might see "client id" or "application id," they are the same thing.

Service Principal Client Secret - You'll make a new Key in your Service Principal. I called mine "login" but it doesn't matter, then some value like a generated password (also doesn't matter) and then hit Save. You'll then get a long hashed value - THAT is your Client Secret. Save it, you'll never see it again and you can't get it back.

Cool. Let's do it. Again, following along with the wiki, I'll make an App under Active Directory | App Registrations in the Azure Portal at https://portal.azure.com

Make a new app...

Now grab the Application ID, aka Client ID and save that in your scratch space/notepad/sticky note/smart brain/don't lose it.

Now click Settings, Keys, make a new one called "login" with a password and click Save. COPY THAT VALUE. You'll never see it again.

Now, go to the Resource Group for your App Service and App Service Plan. Ideally it'll be the same one, but if it's not, go to each one and keep track of the names. I went there with the search box at the top of the Azure Portal.

The Portal changes sometimes, and this next step didn't line up to the Wiki instructions exactly. Click add, then make your new App Registration from above a "Contributor" to your Resource Group.

Now head over to your actual App Service, and click Extensions.

I picked Azure Let's Encrypt to have this run as a Web Job in the background.

Now, while you're at your Web App/Site, go to Settings and make sure you've set the following two Connection strings AzureWebJobsDashboard and AzureWebJobsStorage - Don't forget this step or it'll all work once but fail in 3 months during the renewal.

Both of these should be set to your Azure Storage Account connection string, e.g. DefaultEndpointsProtocol=https;AccountName=[myaccount];AccountKey=[mykey];

Remember the Web Job needs this storage so it can renew the certs every 3 months. Add them as "Custom."

Next, the instructions say to "configure the Site Extension." That can be confusing until you realize a Site Extension is really a "Side car web site." It is its own little website, running off to the side of your site. It will be at http://YOURSITENAME.scm.azurewebsites.net/LetsEncrypt so mine is at http://babysmash.scm.azurewebsites.net/LetsEncrypt.

You'll then want to full this form out. Your "Tenant ID" is your Azure Active Directory URL. You'll find your SubscriptionId in the "Overview" tab.

Next next, and then hold down CTRL (as this is a multi-selection dialog) and pick the sites you want a certificate for. Note that www.yourdomin and and .yourdomain (the naked domain) are two different certs.

You'll want to confirm you see "Certificate successfully installed."

Then head back over to the Azure Portal and turn on HTTPS Only if you'd like Azure itself (versus your code) to ensure and redirect all non-secure links to https://. Also confirm your SSL Bindings are correct. They should have been set up automatically.

Now I'll go hit https://babysmash.com and...

It's not secure! Ah, now my site is in "mixed mode." That means that some of the resources like gifs or css were fetched with non-ssl (HTTP://) links. I'll update my site and all its external resources like YouTube embeds and fonts with https:// so that everything is secure. Since I'm using Git Deploy with Azure Web Apps (Azure App Service) I'll just make the changes and push the site again. You can also look at the elements as they load in F12 Browser Tools if you are having trouble finding out which image, css, or js file came in over http://

I'll redeploy and after a few tries, boom.

And there's the cert. Note its expiration date. If the Site Extension does its job it will renew the cert before it expires!

Once I knew what I was doing, it took about 10 minutes per site. Thanks Simon for your work, and while there are multiple ways to do this, I found Simon's App Service Extension the easiest. I hope the Azure team comes up with a "One Click Solution" to this.

What do you think?

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#Scott Hanselman's Blog

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mumbaipunetaxiservices-blog · 7 years ago

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What Is An SSL Certificate Used For?

SSl Service Providers in Mumbai

DVs are in addition made use of by some CAs, such as GeoTrust as well as RapidSSL. All a DV recommends is that the internet site has been joined by somebody with admin legal rights to the site. If the certification stands along with authorized by a trusted CA, a web browser connecting to the site will definitely alert you that it has really effectively safeguarded an HTTPS connection. You can make use of a DV to protect a simple website.

Organization Validation

An OV confirms the domain name ownership in addition to includes belongings information like the website proprietor's name, city, state, as well as country. This is the very little accreditation degree for an industrial web site. This middle-tier of qualifications is rarely made use of.

Extended Recognition

For a major internet site, your best selection is an EV SSL accreditation. These lawfully verify the domain's proprietors. Relying on the CA, it could take weeks to obtain one, so it's to begin the processing of obtaining one. Web sites with a SV SSL qualification have an environment-friendly address bar in the majority of net web browsers.

The initial 2 qualifications been available in 2 tastes. The first is the cost-effective singular domain accreditation. As the name recommends, it secures a solitary internet site. Its brother, the wildcard certification, safeguards several sub-domains.

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EV certifications are frequently a single-domain certificate. If you should cover numerous sub-domains with EV certifications, you might frequently obtain an amount discount, but you cannot obtain a wildcard that will cover all your sub-domains.

The most hassle-free as well as most budget friendly method to get an accreditation is to use Let's Secure with its DV certificates. Allow's Secure is an entirely cost-free, automated, along with open protection qualification authority (CA) for every person. It does not make use of, nor will certainly it ever before utilize, OV or EV accreditations. Still, if you're avoiding doing ecommerce from within your site, a Let's Encrypt DC can be all you require.

Allow's Encrypt's core concepts are:

Free: Any kind of individual that possesses a domain can use Let's Encrypt to acquire a counted on qualification at definitely no cost. Automatic: Software application operating on an internet server could communicate with Let's Encrypt to painlessly get a certificate, securely configure it for use, as well as instantly look after resurgence. Secure: Let's Encrypt will certainly advance TLS safety and safety best methods, both on the CA side as well as by helping site vehicle drivers suitably guard their servers. Clear: All accreditations released or revoked will certainly be publicly tape-recorded as well as offered for any type of private to take a look at.

Sometimes larger firms have in fact acquired certifications in many sets from several certification authorities and also provided the measurement as well as scale of the procedure, sometimes things fail the divides.

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If you're running an ecommerce site, use an EV SSL certification from a well-regarded CA. To discover the appropriate industrial qualification for you, take a look at SSL Buyer's recommendations. For the rest people, a Let's Encrypt certification should work just fine.

To obtain started with Let's Encrypt, very first upgrade your internet server running system and also web server, and also later on download and install and also set up Enable's Encrypt. If you're using an organizing internet site for your internet server, utilize its inner instructions or services.

If you're running your very own internet server on Linux, the simplest ways to do this is with Certbot. This web site gives comprehensive standards for the most popular Linux web server circulations and for the complying with web server programs: Apache, NGINX, Haproxy, in addition to Plesk. If you're dealing with Microsoft Azure, you might take advantage of the GetSSL - Azure Automation PowerShell manuscript. Still running your net server on Windows Web server? After that, check out ACMESharp, which uses.NET and PowerShell.

For more details, see Ways to utilize Let's Encrypt to protect your websites.

Flaw in TLS/SSL Certifications Permits Covert Details Transfer

A brand-new technique of concealed network information exchange has really been uncovered. It makes use of an extensively referred to as well as commonly applied public essential certifications conventional (X. 509), which is a feature of both TLS in addition to SSL IP executions for protecting internet interactions.

Inning Conformity With Jason Reaves, risk research study primary developer at Fidelis Protection, there's a trouble in the suggests the certifications are exchanged, which can permit them to be pirated for command-and-control (CnC) communication. The procedure also ends up bypassing usual security activities.

Reaves created an evidence of idea (PoC) that reveals a malicious binary being transferred over TLS arrangement web website traffic to resemble a danger celebrity relocating the Mimikatz data-extraction malware to a currently endangered system.

Basically, certifications are traded throughout the TLS handshake, before the safeguarded link is made. By positioning approximate binary data right into the certificates themselves, Reaves exposed a system that might be used to send or obtain details from both a customer as well as a server viewpoint. At the exact same time, the information moved through X. 509 extensions might bypass discovery techniques that do not inspect certification well worths. As he clarified in an analysis:

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NET SAFETY AND SECURITY ACCREDITATION TYPES

When it pertains to decrease in addition to exploration, the PoC utilizes self-signed certifications, so obstructing self-signed certificates at the boundary could be an advantageous security mechanism for these assaults. An added possibility for signaturing is seeking executables in accreditations.

While no manipulate has yet been seen in the wild, the common use these certifications suggests that numerous companies are potentially available to this new information transfer method, which in and of itself is not all that uncommon.

" Taking advantage of concealed networks to relocate details throughout a network is not new ... Appending data to ICMP, for instance, was suggested as a method to transfer details back in 2005, with citations indicated publications from 1997," Reaves stated. "Undeniably, one of the earliest mention of sensible covert network use is available in a government publication from 1993. Scientists continuously find unique techniques to abuse techniques and also RFC executions to achieve difficult-to-detect details transfer methods."

3 Year Alternative for SSL Certificates finishes March 1, 2018 After March 1, you'll just be able to buy two-year certificates. Beginning on March 1, 2018, you will absolutely not be able to acquire 3-year SSL certifications. This modification is being implemented by the Certification Authority/Browser Online Forum (TAXI Online Forum), which is basically a controling body made up of CAs as well as Net browser.

If your SSL certification was provided prior to March 1, 2018, it's still great for nevertheless long you have actually left. All SSL Certificates gave after March 1, 2018, might just have an optimal life expectancy of 825 days. DCV and company acknowledgment details for DV as well as OV certificates can only be utilized for 825 days. That's right, after 825 days the CA should verify you once more. And also this is retroactive, also, so however old your present qualification is, it counts versus the 825 days. I'll level with you, this is more than likely mosting likely to boost the moment related to the recognition procedure as CAs are mosting likely to be forced to re-validate routinely.

#ssl #sslcertificate #sslcertificateproviders #sslprovider #httpsservices #securityservices #sslsecurity #websitesecurity

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clearperception-blog1 · 7 years ago