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I have a candlepin server set up to use only SSLv3 (where the poodle exploit exists)
#cat /etc/tomcat/server.xml | grep sslEnabledProtocols
<Connector SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="want" SSLProtocol="TLS" keystoreFile="conf/keystore" truststoreFile="conf/keystore" keystorePass="password" keystoreType="PKCS12" ciphers="SSL_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" truststorePass="password" port="8443" sslEnabledProtocols="SSLv3" protocol="HTTP/1.1"/>
Meanwhile on the client when I register:
#subscription-manager register --username=testuser1 --password=password --org=admin
Registering to: jmolet-cp0.usersys.redhat.com:8443/candlepin
Unable to verify server's identity: unsupported protocol
This was rejected due to incorrect protocol.
If I change the server back:
#cat /etc/tomcat/server.xml | grep sslEnabledProtocols
<Connector SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="want" SSLProtocol="TLS" keystoreFile="conf/keystore" truststoreFile="conf/keystore" keystorePass="password" keystoreType="PKCS12" ciphers="SSL_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" truststorePass="password" port="8443" sslEnabledProtocols="TLSv1.2,TLSv1.1,TLSv1" protocol="HTTP/1.1"/>
# subscription-manager register --username=testuser1 --password=password --org=admin
Registering to: jmolet-cp0.usersys.redhat.com:8443/candlepin
The system has been registered with ID: 83613ef2-274f-4734-abdc-54095d63930e
All works. Marking Verified.
python-rhsm-1.15.4-5.el7.x86_64