Did You Upgraded all Connected Application to use TLS1.2?

Upgrade to TLS1.2

Hello Everyone,
As You already know Netsuite is going to depreciate TLS 1.0  and TLS1.1, which might cause error in case connected APPs are not upgraded to TLS1.2.

Why this is happening? Why Netsuite is depreciating TLS1.0 and TLS1.2?

TLS Stand for Transport layer Security. As per Payment Card Industry Security Standards Council (PCI SSC)versions earlier than 1.2 is having serious vulnerabilities,this will increase security breach.
Thats why Netsuite is upgrading and depreciating TLS1.0 and TLS1.1.

April 21 2018 onward Suite Talk , Restlet, Forms , suitelets , basically anything inside netsuite or called from netsuite will support TLS1.2 .

What you should check?

Check for all URLs which you can find inside scripts and ask them to upgrade to TLS1.2 . If they are not able to upgrade then system will not be able to connect and generate errors.

What Type of Errors can come if not upgraded to TLS1.2 or later?

1. Underlying connection was closed.
2. The request was aborted: Could not create SSL/TLS secure channel
3. Received Error from NetSuite API. Received fatal alert: handshake_failure
4. Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host
5. SSS_CONNECTION_CLOSED : usually occurs when the server associated with the URL is unresponsive.
6. SSS_INVALID_HOST_CERT : usually occurs when the client and server could negotiate the desired level of security. The connection is no longer usable. 

Solution:

 

Let 3rd Party Application or software know about TLS1.2 and ask them to upgrade security protocols.  

You can use below URLs to verify:

    https://www.ssllabs.com/ssltest/ - Can test a URL/page for security settings
    https://www.howsmyssl.com/s/api.html - a public API that can be called for testing TLS/security

Thanks

Abhi




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