Server Does Not Support Secure Renegotiation

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Fixing TLS Renegotiation On Your Server DigiCert.com

    https://www.digicert.com/news/2011-06-03-ssl-renego/
    However, because some TLS servers do not support renegotiation at all there will be a transition period where problems will be encountered. From a server side, if the server does not receive the “renegotiation_info” extension or the SCSV, then RFC 5746 specifies that the “secure_renegotiation” flag be set to FALSE.

Secure Renegotiation is not supported OpenSSL issue ...

    https://stackoverflow.com/questions/24124814/secure-renegotiation-is-not-supported-openssl-issue
    Jun 10, 2014 · The address is xxx.api.crm4.dynamics.com. The server accepts TLSv1 but not 1.1 or 1.2 and does not offer renegotiation. In order to maintain my RedHat server with the most up to date patches especially around Heartbleed I need to upgrade to a more recent version of OpenSSL. However, this then enables TLSv1.2 on the RedHat server.

Tips for Securing SSL Renegotiation McAfee Blogs

    https://www.mcafee.com/blogs/enterprise/tips-securing-ssl-renegotiation/
    Disable SSL renegotiation support on the server. If disabling renegotiation is not possible due to business needs such as ecommerce, then allow only secure renegotiation and limit the number of SSL handshakes, or upgrade server resources by adding products like an SSL accelerator. Do not support insecure renegotiation.

Server reported as vulnerable to Secure Renegotiation (CVE ...

    https://github.com/drwetter/testssl.sh/issues/764
    Jun 19, 2017 · When running the script on server that does not support renegotiation at all, the script still report the server as vulnerable to Secure Renegotiation (CVE-2009-3555). As …

Disabling SSL renegotiation is a crutch, not a fix ...

    https://blog.qualys.com/ssllabs/2010/10/06/disabling-ssl-renegotiation-is-a-crutch-not-a-fix-2
    Oct 06, 2010 · Disabling SSL renegotiation is a crutch, not a fix Posted by Ivan Ristic in SSL Labs on October 6, 2010 6:25 AM In the days that followed the discovery of SSL/TLS Authentication Gap , some sites (those that did not need renegotiation) were able to deal with the problem by disabling renegotiation in server code.

How do you enable "secure renegotiation" in IIS? Qualys ...

    https://discussions.qualys.com/thread/11942
    Sep 14, 2013 · How do you enable "secure renegotiation" in IIS? ... Thanks for the SSL Test, it's great work. I see that my IIS web server does not support "secure renegotiation", and I'm wondering how I fix that. I don't see anywhere to toggle that setting. ... Install MS10-049, which will add the secure renegotiation ability. ...Reviews: 1

openssl secure renegotiation (not supported) - Server Fault

    https://serverfault.com/questions/822361/openssl-secure-renegotiation-not-supported
    When I run openssl s_server in place of the server I see the message secure renegotiation not supported when the client connects. Renegotiation doesn't necessarily have anything to do with the connection problems but I'm trying to understand renegotiation.

RFC 5746 - Transport Layer Security (TLS) Renegotiation ...

    https://tools.ietf.org/html/rfc5746
    (Because the server has already indicated it does not support secure renegotiation, the only way that this can happen is if the server is broken or there is an attack.) 4.3. Server Considerations If the client does not offer the "renegotiation_info" extension or the TLS_EMPTY_RENEGOTIATION_INFO_SCSV SCSV, then this indicates that the client ...Cited by: 120

Outbound support for TLS 1.1/1.2 SAP Blogs

    https://blogs.sap.com/2016/06/06/outbound-support-for-tls-1112/
    Jun 06, 2016 · ssl_debug(12): Server supports secure renegotiation. ssl_debug(12): Received certificate handshake message with server certificate. ... The screen you shared shows, that ECDHE cipher suites are required by the server. PI/PO does not support those yet. That’s likely why Pre-Prod falls back to SSLv3 and QA does not work.



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