Getting below error
Http Action - Request to host 'sipoc.cloudapp.net' failed: TrustFailure The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
while invoking below WCF RestService on https from Azure scheduler service GET job.
below is the webservice URL
https://sipoc.cloudapp.net/Service1.svc/GetPlayersXMl
Service URL is working fine.
Any help would be appreciated.
If I browse to the URL provided it indicates that the SSL certificate is not trusted.
"The security certificate presented by this website was not issued by a trusted certificate authority.
The security certificate presented by this website has expired or is not yet valid. "
Scheduler jobs will fail as it can't trust the endpoint. You can either use a trusted certificate or just use HTTP (instead of HTTPS).
Although I would never recommend this in production unless you know the cert is valid (i.e. self signed), you can override the default behavior and confirm that the cert is good.
Below is a sample on how to do it in C#. There are a couple of ways to write it. The advantage here is that it remains SSL encrypted (versus falling back to HTTP).
ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, errors) => true;
Related
I am trying to split up my Network traffic into two streams using Mitmproxy.
I therefore have one incoming proxy that accepts traffic from my IPhone and I am using two secondary Proxies to which the Traffic is forwarded. I start the three instances like this:
mitmproxy --mode upstream 127.0.0.1:8083 -s mitmRoot.py --ssl-insecure
mitmproxy --listen-port 8083 --ssl-insecure
mitmproxy --listen-port 8082 --ssl-insecure
I am using the following, very simple Python script to route the traffic:
class mitmRoot:
def request(self, flow: mitmproxy.http.HTTPFlow):
if "github.com" in str(flow.request.url):
flow.live.change_upstream_proxy_server(("localhost", 8082))
addons = [
mitmRoot()
]
Now everything works perfectly fine if I am using only one proxy without any upstream Proxy. I have installed the certificate on the Phone and I can open any website in the browser
However if I add the two upstream proxies I see start seeing certification errors,
mostly for IPhone related stuff:
clientdisconnect
clientconnect
Certificate verification error for gateway.icloud.com: self signed certificate in certificate chain (errno: 19, depth: 1)
Ignoring server verification error, continuing with connection
Client Handshake failed. The client may not trust the proxy's certificate for gateway.icloud.com.
Interestingly I can still establish connections to websites except the ones where I am switching the upstream server. So in this example I am not able to open github.com.
The input proxy now throws cert errors for github.com as well, while the upstream proxy that should be getting the traffic (the one on port 8082) does not see any traffic at all I also see some clientconnect/ clientdisconnect messages in the stream:
https://github.com/
clientconnect
clientconnect
Certificate verification error for github.com: self signed certificate in certificate chain (errno: 19, depth: 1)
Ignoring server verification error, continuing with connection
Certificate verification error for keyvalueservice.icloud.com: self signed certificate in certificate chain (errno: 19, depth: 1)
Ignoring server verification error, continuing with connection
Client Handshake failed. The client may not trust the proxy's certificate for keyvalueservice.icloud.com
I have tried different configuration options, for "--set add_upstream_certs_to_client=true" but so far I am not able to set this up right.
It seems like there is some kind of configuration issue but I don't yet see why it is happening.
Thank You for your help!
From my browser I want to communicate to localhost application using ssl. Here browser(which acts as client) will submit the certificate instead of localhost application(which acts as server). Can Ssl be established in this scenario? So finally it boils down to problem statement can a ssl communication be established by server validating the client certificate and client not validating the server certificate.
The SSL/TLS implementation inside the browser do not support this scenario. A server certificate is always required by the browser with SSL/TLS in order to be sure that the browser is communicating with the expected server (as specified in the URL) and not some man in the middle. Apart from that it is not clear what you want to achieve with such a setup in the first place - maybe there is a better design for your unknown use case.
I want to configure Haproxy so that it only requires client certificate when specific URL accessed? Ex:
www.test.com - it proceeds normally.
www.test.com/secure - haproxy requires the client certificate.
To understand why this isn't directly possible requires an understanding of how TLS (SSL) works. TLS encrypts the connection before the HTTP request is sent (over the now-encrypted connection). By the time the URL is known by HAProxy, the time for requiring a client certificate has already passed.
For practical reasons, an endpoint (HAProxy frontend or listen) needs to either require a certificate for connections, or not... however, using verify optional it might be possible to achieve what you want. Using verify optional means that the proxy will ask for a client cert upon connection, and if either the client offers no cert or if the cert is valid according to the ca-file, the client will be allowed to connect. Invalid certs will result in disconnection.
Then, the ssl_c_used fetch could be used to deny requests for that path for clients who didn't present the "optional" certificate, earlier.
http-request deny if { path_beg /secure } ! { ssl_c_used }
The viability of this solution depends on how gracefully browsers behave when asked for a certificate that they would not have -- and all connecting browsers will be asked for a certificate.
But there is no way of doing exactly what you are asking, either in HAProxy or on any other platform since, by design, the path is unknown until after TLS negotiation is already complete.
In order to secure my Rest Services, I have enabled SSL in IIS and Created a Self-Signed Certificate and assigned it to the HTTPS binding in IIS. I exported the same as pfx file and added the same in IE also but when I try to access the Services, I get the following error on Windows 7, Enterprise edition
HTTP Error 403.7 - Forbidden
The page you are attempting to access requires your browser to have a Secure Sockets Layer (SSL) client certificate that the Web server recognizes.
And on Windows Server 2003, this is
HTTP Error 403.7 - Forbidden: SSL client certificate is required.
Internet Information Services (IIS)
I am not sure what shall I do except adding the certificate in IE under “Personal” and “Trusted Root Certification Authorities”? Could you please suggest me some step, in order to make this work.
Note: I have tried with “Self-Signed Certificates” as well as with Certificates generated from Microsoft “Certificate Services” also.
Any help is greatly appreciated.
SSL is used to verify the identity of the server, not the identity of the client. The error suggests (http://support.microsoft.com/kb/199215, "This is used for authenticating you as a valid user of the resource. ") the server wants to identify the client. Which of the two are you trying to do?
Edit: SSL requires the public part of the SSL certificate to be available to the client. Adding it to the trusted root certificates seems to me to be the only way to make the public part of a self-signed certificate available to the browser.
I'm using SMTP transport. I would like to use TLS but my hosting has self-signed certificate.
It is possible to use TLS in such situation?
TLS itself has no concept of the certificate being self signed or not. When you initiate a TLS connection (either by connecting to a specific port or via STARTTLS) the server and client negotiate the TLS connection.
As part of the TLS negotiation it is up to the client and server to decide whether the certificate that they're presented is valid or not. If the certificate is self signed it's possible that the client (I'm assuming you're the server) may reject the certificate because it's not issued by a known CA or it might accept it.
It's therefore possible to use TLS with self signed certificates (we do it) but it's also possible that a client could reject the connection because it cannot verify the certificate. If you full have control of the clients (which you do here) you can of course aid this and ensure you always accept your hosts certificate.