Hi, i am trying to setup nginx for OCSP client certificate verification and have troubles getting it to work with chained CA's. My setup is as follows, all referenced files are in the attached archive. - RootCa (pki/root/RootCa*.*): Self signed root CA certificate - IntermediateCa (pki/intermediate/IntermediateCa*.*): Intermediate CA certificate signed by RootCa - ServerCertificate (pki/intermediate/ ServerCertificate *.*): Server certificate, signed by Intermediate CA - IntermediateClientA (pki/intermediate/IntermediateClientA*.*): Intermediate client certificate A, signed by Intermediate CA (password for p12: umtest) - IntermediateClientB (pki/intermediate/IntermediateClientB*.*): Intermediate client certificate B, signed by Intermediate CA, REVOKED (password for p12: umtest) - IntermediateOcspResponder (pki/intermediate/ IntermediateOcspResponder *.*): Intermediate OCSP responder certificate, extendedKeyUsage=OCSPSigning, signed by Intermediate CA
- nginx 1.20.2 runs on a Manjaro virtual machine
- openssl ocsp responder runs on the same Manjaro box, port 8080 (started with
pki/startOcspResponder.sh):
openssl ocsp -index intermediate/index.txt -port 8080 -rsigner
intermediate/IntermediateOcspResponderCert.pem -rkey
intermediate/IntermediateOcspResponderKey.pem -CA
intermediate/IntermediateChainCaCert.pem -text &
nginx mTls configuration is as follows (full nginx.conf attached):
ssl_ocsp on;
ssl_verify_client on;
ssl_client_certificate
/etc/nginx/pki/intermediate/IntermediateChainCaCert.pem;
ssl_ocsp_responder http://127.0.0.1:8080;
ssl_verify_depth 2;
I am trying to connect from Chrome, running on the Windows host, using
alternatively Client A/B certificates.
With the above configuration, connection with Client A fails, which is NOT
expected, Client A should be able to connect.
nginx error.log indicates:
2022/01/04 10:06:29 [error] 2920#2920: *4 OCSP_basic_verify() failed (SSL:
error:27069070:OCSP routines:OCSP_basic_verify:root ca not trusted) while
requesting certificate status, responder: 127.0.0.1, peer: 127.0.0.1:8080
Connection with Client B fails too, this is expected as Client B certificate is
revoked,
nginx error.log indicates:
2022/01/04 10:06:42 [info] 2920#2920: *14 client SSL certificate verify error:
certificate revoked while reading client request headers, client:
192.168.1.115, server: localhost, request: "GET / HTTP/1.1", host:
"192.168.1.110"
when changing nginx configuration to:
ssl_ocsp leaf;
everything works as expected, Client A can connect, Client B not.
Trying ocsp verification dircetly using openssl cli, works as expected as well:
openssl ocsp -issuer intermediate/IntermediateCaCert.pem -CAfile
intermediate/IntermediateChainCaCert.pem -cert
intermediate/IntermediateClientACert.pem -url http://127.0.0.1:8080
Response verify OK
intermediate/IntermediateClientACert.pem: good
This Update: Jan 4 09:20:56 2022 GMT
openssl ocsp -issuer intermediate/IntermediateCaCert.pem -CAfile
intermediate/IntermediateChainCaCert.pem -cert
intermediate/IntermediateClientBCert.pem -url http://127.0.0.1:8080
Response verify OK
intermediate/IntermediateClientBCert.pem: revoked
This Update: Jan 4 09:21:37 2022 GMT
Revocation Time: Dec 23 09:33:07 2021 GMT
How do i need to configure nginx to make OCSP validation working for the
certificate chain, not only the leaf ?
Thanks
This e-mail and any files attached are strictly confidential, may be legally
privileged and are intended solely for the addressee. If you are not the
intended recipient please notify the sender immediately by return email and
then delete the e-mail and any attachments immediately. The views and or
opinions expressed in this e-mail are not necessarily the views of Glory Ltd,
Glory Global Solutions Limited or any of their subsidiaries or affiliates and
the GLORY Group of companies, their directors, officers and employees make no
representation about and accept no liability for its accuracy or completeness.
You should ensure that you have adequate virus protection as the GLORY Group of
companies do not accept liability for any viruses. Glory Global Solutions
Limited Registered No. 07945417 and Glory Global Solutions (International)
Limited Registered No 6569621 are both registered in England and Wales with
their registered office at: Infinity View, 1 Hazelwood, Lime Tree Way,
Chineham, Basingstoke, Hampshire RG24 8WZ, United Kingdom
nginx_pki.tar.gz
Description: nginx_pki.tar.gz
_______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
