I'm trying to solve the problem
requests.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:579)
when I connect to a handle server.
I also used
ssl._create_default_https_context = ssl._create_unverified_context
as some user suggested, but I'm not able to fix the issue.
Any other solution?
Thanks
Does your server have a valid certificate, signed by a Certification Authority?
If it uses a self-signed certificate I would suggest that you save a copy of the public certificate in your Python project and pass the certificate name in the verify parameter on requests.
You can save the certificate by accessing the server on Firefox, clicking on the Lock icon near to the address bar, selecting the Certificate, then More details, then View Certificate, then export.
You will get a .pem file, let's say: "my_server_certificate.pem".
Then when you create your Session object on requests you can pass the parameter:
session = requests.Session()
session.verify = "my_server_certificate.pem"
I had similar problems when using charles proxy with my Python scripts. I hope this helps you solve your problem as well.
Related
I have installed apache web server. Generated SSL for the apache website. Got cert file and key. I wrote a python snippet to validate the ssl file for the website. The certificate file path is stored in cer_auth. My code will access file in the cer_auth,validates it and provide the result. But it is showing error. How to solve it?
Here's the code:
import requests
host = '192.168.1.27'
host1 = 'https://'+host
#cer_auth = '/etc/ssl/certs/ca-certificates.crt'
cer_auth = '/home/paulsteven/Apache_SSL/apache-selfsigned.crt'
print(host1)
try:
requests.get(host1, verify= cer_auth)
print("SSL Certificate Verified")
except:
print("No SSL certificate")
Error i got:
https://192.168.1.27
/home/paulsteven/.local/lib/python3.5/site-packages/urllib3/connection.py:362: SubjectAltNameWarning: Certificate for 192.168.1.27 has no `subjectAltName`, falling back to check for a `commonName` for now. This feature is being removed by major browsers and deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 for details.)
SubjectAltNameWarning
No SSL certificate
The old way of pointing certificates to hostnames was through the CommonName or CN field. This practice is rapidly changing due to changes in how browsers handle certificates. The current expectation is to have all hostnames and IPs in x509v3 extended fields in the certificate, named subjectAlternativeNames. The instructions you have followed were probably outdated.
Here's a mediocre guide into doing just that with OpenSSL
https://support.citrix.com/article/CTX135602
If you want to sign for some IP addresses, the field name is IP.1 instead of DNS.1 like in the link above.
I have a python script that uses the VirusTotal API. It has been working with no problems, but all of a sudden when I run the script I am getting the following error:
urllib2.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)>
I believe it may be our web proxy that is causing the issue. Is there a way to prevent it from verifying the cert? Here is the portion of the code that uses the API:
json_out = []
url = "https://www.virustotal.com/vtapi/v2/file/report"
parameters = {"resource": my_list,
"apikey": "<MY API KEY>"}
data = urllib.urlencode(parameters)
req = urllib2.Request(url, data)
response = urllib2.urlopen(req)
json_out.append (response.read())
I believe it may be our web proxy that is causing the issue. Is there a way to prevent it from verifying the cert?
If you assume that a SSL intercepting proxy is denying the connection then you have to fix the problem at the proxy, i.e. there is no way to instruct the proxy to not check the certificate from your application.
If instead you assume that there is a SSL intercepting proxy and thus the certificate you receive is not signed by a CA you trust then you should get the CA of the proxy and trust it in your application (see cafile parameter in the documentation). Disabling validation is almost never the right way. Instead fix it so that validation works.
There are two possibilities,
You are using a self-signed certificate. Browsers don not trust on such certificate, so be sure that you are using CA-signed trusted certificate.
If you are using CA-signed trusted the certificate that you should have to check for install CA chain certificates (Root and Intermediate certificate).
You can refer this article, it may help you. - https://access.redhat.com/articles/2039753
I want to connect to a SOAP API that does not have WSDL in Python. To connect I need to a add a SSL certificate and authenticate afterwards.
from pysimplesoap.client import SoapClient, SimpleXMLElement
cacert = open(path, 'rb').read() # read the certificate
header = SimpleXMLElement('<Header/>')
credentials = header.add_child('Credentials')
credentials.marshall('Password', 'password')
credentials.marshall('Username', 'username')
client = SoapClient(
location="https://mytest.com/Services/",
cacert=cacert)
client['Header'] = header
client.action = "https://mytest.com/Services/Action1"
client.Action1() # gives SSL error
The result I receive is a SSL error:
SSLHandshakeError: [Errno 1] _ssl.c:510: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
Can anyone, please, tell me how to solve this issue? Or can you advise any other library I can use. Most SOAP libraries I found offer connection only to WSDL.
Usually in a pfx file there is the client certificate with key, not the CA file. The libraries seems to expect the client certificate as PEM. You should extract the certificate and the key as show in https://stackoverflow.com/a/9516936/3929826.
Then hand it in to the SoapClient() initiation as cert and key_file argument:
client = SoapClient(location="https://mytest.com/Services/",
cert='mycert.pem',
key_file='mycert.key)
It should also be possible to put both into the cert file.
If that still does not work your have to add the CA certificate as the cacert parameter after you retrieved it as described in https://stackoverflow.com/a/7886248/3929826 .
For further reference see the source code of simplesoap: https://code.google.com/p/pysimplesoap/source/browse/pysimplesoap/client.py#75 .
I am trying to connect to the Visa Direct API, but i am not passing the basic SSL certificate authetification, here is my code:
import requests
headers = { 'Content-Type' : 'Application/json' }
url = 'https://sandbox.visa.com/rsrv_vpp/v1/acnl'
payload = {"SystemsTraceAuditNumber":565690,
"RetrievalReferenceNumber":"505012455690",
"AcquiringBin":409999,
"AcquirerCountryCode":"840",
"PrimaryAccountNumber":"4895070000008881"}
r = requests.post(url, data=json.dumps(payload),
cert =('/etc/ssl/certs/sandbox_cert.pem'), headers=headers,
auth=('370df57a-a8aa-4446-a23e-44a0ef06ea09',
'6023e518-c36c-47a8-b16e-c8a5b3a941ef'))
Ass you can see i am using request and passing the cert argument along with the API user and password info but i keep getting the error:
requests.exceptions.SSLError: [Errno 1] _ssl.c:510: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
I get a SSL error when I try to open https://sandbox.visa.com/rsrv_vpp/v1/acnl in Google Chrome.
The Visa Docs say
SSL Server Authentication
The SSL server certificate installed on sandbox.visa.com servers is a
Visa issued self-signed certificate. Client applications need to add
the sandbox.visa.com SSL certificate to their local trust store to
prevent SSL Handshake errors at runtime.
Ensure that your application that connects to the Visa Direct API is
configured (or built) to use the trusted certificate store as a trust
store, and not a key store.
Verify that the application is configured to use the right password
associated with the trust store file.
It looks like you need to do do some SSL Authentication before you can connect to Visa.
My apache ssl conf has the following configs
# Server Certificate:
SSLCertificateFile /etc/pki/tls/certs/localhost.crt
# Server Private Key:
SSLCertificateKeyFile /etc/pki/tls/private/localhost.key
I do not have the CA certificates for this server. Can I still install the localhost.crt into my clients to successfully verify my server?
On the client:
I am using Python requests library (2.2.1). The default CA BUNDLE path is used. Even when I add the localhost.crt to the cacert.pem in the default path, I am unable to see the verification go through. I see the exception:
File "/usr/lib/python2.7/site-packages/requests/adapters.py", line 385, in send
raise SSLError(e)
SSLError: [Errno 1] _ssl.c:504: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
Am I doing anything wrong? Should I only add the CA who signed the localhost.crt in the server?
Thanks,
Vijay
If you provided code and be more clear on what you're doing then you'd get a good answer.
If you want don't want to get the error even if you use an invalid certificate then try the verify=False attribute.
>>> requests.get('https://kennethreitz.com', verify=False)
If you want to use a custom certificate, then place the certificate in the script folder and use the cert=('/path/client.cert', '/path/client.key') argument.
>>> requests.get('https://kennethreitz.com', cert=('/path/client.cert', '/path/client.key')).
For more info read the docs.python-requests.org/en/master/user/advanced/ site