I am trying to add an advertiser link(paved.com) in my newsletter. Before adding to newsletter, I had to add that link to my custom domain, for that they (paved.com) had provided me with CNAME and it's value.
I add that to my DNS server, I am using aws's route53 as my dns server, so adding that was straightforward. But now, when I click on that link, it throws an unsupported protocol error i.e. ERR_SSL_VERSION_OR_CIPHER_MISMATCH
I have no clue how to debug this and I will really appreciate your time and help.
One thing I had tried was to issue a new certificate for the custom domain they had provided, but that also didn't work.
Commonly the error happens when the web browser and the web server don’t support a common SSL protocol version.
Did you check the tls version? try to force the tls version to 1.2 and have a try.
Related
I'm kinda at a loss here.
Trying to set up proton with SSL / TLS access, but after creating the certificates with the (modified) shell scripts
supplied by the AppDev-Pack and linking the keyring and everything in notes.ini, I always seem to get
the error "Handshake failed with fatal error SSL_ERROR_SSL: error: 100000f7:SSL routines:OPENSSL_internal:
WRONG_VERSION_NUMBER".
Tried both a windows and linux server, as well as using the accessing node.js app with and without
certificates - but with no success.
Also tried the troubleshoot section of https://doc.cwpcollaboration.com/appdevpack/docs/en/proton-admin.html and it connected just fine,
but won't if i connect with node.js.
Looks like the error is thrown before a certificate is even checked?
In this example the error is thrown after trying to get a document by UNID.
notes.ini (proton parts)
gRPC Client Error
If someone has an idea how to fix that issue or where to start - that would really help me.
Thanks in advance.
It appears that the client side does not have the secure flag set. At least I get a similar stack when I try to connect without TLS when the server expects TLS.
See the secure attribute when calling useServer() function, and you'll also need to provide the credentials attributes.
I'm trying to retrieve data from an open data api. I have downloaded the certificate from the site and imported it into STRUST (SSL Client Anonymous).
Then I created a HTTP connection to external server in SM59. In the beginning it worked fine, until last week when the api changed its URL and so its DNS.
Of course it could no longer be reached by the current host. So I did above steps again for the new URL (changed everything accordingly like hostname etc. in SM59), but this time I receive following error:
SSL handshake with 'hostname:port' failed: SSSLERR_CONN_CLOSED (-10)#Remote
Peer has closed the network connection##SapSSLSessionStartNB()==SSSLERR_CONN_CLOSED##
Anyone has an idea on how to solve this?
On another forum someone helped me solve the problem. He pointed me out that the problem lies with SNI see: https://security.stackexchange.com/questions/101965/ssl3-error-when-requesting-connection-using-tls-1-2/102018#102018
https://en.wikipedia.org/wiki/Server_Name_Indication
To solve this problem you need to add following parameter: icm/HTTPS/client_sni_enabled and set it to TRUE on the DEFAULT profile. Afterwards you need to restart the application server in order to activate the effects of the parameter.
Link to the full question on SCN: https://answers.sap.com/questions/473015/sap-ssl-handshake-failed.html
EDIT:
I came across this error again later on, but this time it seemed that the error was caused because we used a certificate with TLS 1.2 which was not supported by our system. You can check this link: https://launchpad.support.sap.com/#/notes/510007 we implemented number 7 to fix this.
When using EppLib.net (and as per the Nominet instructions - http://registrars.nominet.uk/namespace/uk/registration-and-domain-management/registrar-systems/epp/testbed)
In order to verify the identity of the secure server you will need the 'Verisign Class 3 Public Primary Certification Authority' root certificate available free from www.verisign.com (the certificate is also distributed with most web browsers).
I am supplying the Verisign Class 3 PPCA Certs in .crt format (I can't export as a pfx) within the code (and have tried every cert installed on the server).
However each one fails with the error (when trying to negotiate the connection):
An existing connection was forcibly closed by the remote host.
I've confirmed that I can connect from the server to Nominet by running cURL
curl -v https://testbed-epp.nominet.org.uk:700
and that responds as I would expect - or at least without an error!
I have also tried to use the same cert that curl appears to be using without success.
Can anyone help with pointing me in the right direction with the SSL that I should be using or how to get hold of the correct certificate?
thanks in advance
For anyone having a similar issue, it wasn't a question of which SSL certificate to use, but to ensure the correct protocol was being used. Incidentally, I got it working initially using the curl-ca-bundle.crt provided with cURL.
This certificate, in combination with a change to the target .net framework for the EppLib.net project resolved my issue.
On cloning from Github the target was .net 4.0 and Nominet needs at least TLS1.1, which wasn't available in v4.
Therefore I also updated the target to 4.5.1 for the EppLib.net project and changed the SslProtocol from
SslProtocol.Tls to
SslProtocol.Tls12
I am trying to do a xdmp:http-post to a third party URL using the Marklogic (v7.0) query console. The URL is a https:// url and I was able to install the necessary certificate from the admin console. When I run the post, I am receiving the following error:
[1.0-ml] SVC-SOCCONN: xdmp:http-post("https://xxxxx.............", ()) -- Socket connect error: SSL_connect XXX.XXX.XXX.XX:60855-XX.XX.X.XX:443: key size too small (0x0506706e); DH lib (0x14098005)
Can you please assist me here as to what I might be doing wrong? Do I need to follow any additional steps apart from installing the certificate?
Please let me know if I need to supply additional information.
The server's certificate is using a key size that is too small, and therefore considered to be insecure. Since the host name suggests it's a dev machine, the best thing would be to have them use a longer key if you can.
If that's not possible, you can disable FIPS mode on your MarkLogic server. That can be done through the Admin UI by navigating to http://your.host.name:8001/cluster-admin.xqy?section=cluster&local-cluster=true and setting "ssl fips enabled" to false. Be aware that if you do this, the server will allow you to use ciphers and key lengths that are considered weak.
I am trying to monitor https traffic with Fiddler, using current newest version:2.4.4.5
I've successfully set up https, certificates and I can see the full https encrypted traffic for example browsing my bank's web site.
...however...
When I trying to monitor an other server I got this error message in the response window:
"Failed to secure existing connection for 77.87.178.160. A call to SSPI failed, see inner exception. InnerException: System.ComponentModel.Win32Exception: The client and server cannot communicate, because they do not possess a common algorithm"
For full Fiddler window see:
The client is not a in this case browser, but a custom client program, which communicates with its own server.
My question: Is this exception misleading and in reality some other error prevents the secure channel to set up?
...or...
We have still chance to monitor this https communication?
Thx in advance
What is the client program?
This error typically indicates that that client application is only offering certain HTTPS ciphers, and those ciphers are not supported by Fiddler.
However, in this case, the specific problem here is almost certainly this: http://blogs.msdn.com/b/ieinternals/archive/2009/12/08/aes-is-not-a-valid-cipher-for-sslv3.aspx
The client is trying to use AES with SSLv3, but that isn't one of the valid ciphers for SSL3. As a consequence, the connection fails.
You might be able to workaround this by clicking Rules > Customize Rules. Scroll down to the Main() function and add the following line within the function:
CONFIG.oAcceptedServerHTTPSProtocols =
System.Security.Authentication.SslProtocols.Ssl3;
Please let me know if this works.
NOTE Current versions of Fiddler offer a UI link for this: Look at the lis of enabled protocols on the HTTPS tab.
Unbelievably this issue is still present some 6 years later.
Just installed the latest version of Fiddle (v5.0.20194.41348), and sure enough on Win7 using Chrome or IE it keeps failing with the dreaded error:
"fiddler.network.https> HTTPS handshake to google.com (for #1) failed. System.ComponentModel.Win32Exception The client and server cannot communicate, because they do not possess a common algorithm"
After some hours of testing, I found a middle ground solution which seems to work with virtually all websites. The aim was to get the highest possible security with no errors in the log. Without needing to add any code, simply changing this line under Tools > Options > HTTPS > Protocols is what worked for me (just copy and paste it):
<client>;ssl3;tls1.1;tls1.2
Basically removed the ssl2 and tls1.0 protocols which leaves us with some pretty decent security and no errors so far. Having spent hours of frustration with this error, hope someone out there might find this useful, and a big thanks to EricLaw who discovered the root of the problem.
Yes I too have seen this error when working outside of fiddler and it was connected with AuthenticateAsServer but only went wrong when using IE10 and not Chrome as the browser.
Odd thing is that it did not break all the time for IE10 using SslProtocols.Tls for the protocol so I will add a bit of code to switch the protocol if one fails
The protocol that can be used also seems to change on if you are using a proxy server like Fiddler or using an invisible server by hijacking the DNS via the hosts file to divert traffic to the server