2.1.4 Ensure 'SECURE_REGISTER_' Is Set to 'TCPS' or 'IPC'

Information

The SECURE_REGISTER_<listener_name> setting specifies the protocols used to connect to the TNS listener. Each setting should have a value of either TCPS or IPC based on the needs for its protocol.

Rationale:

Listener configuration changes via unencrypted remote connections can result in unauthorized users sniffing control configuration information from the network.

Solution

To remediate this recommendation:
Use a text editor such as vi to set the SECURE_REGISTER_<listener_name>=TCPS or SECURE_REGISTER_<listener_name>=IPC for each listener found in $ORACLE_HOME/network/admin/listener.ora.




References:

http://docs.oracle.com/database/121/NETRF/listener.htm#NETRF328

https://support.oracle.com/epmos/faces/ui/km/DocumentDisplay.jspx?id=1453883.1

https://support.oracle.com/epmos/faces/ui/km/DocumentDisplay.jspx?id=1340831.1

http://www.joxeankoret.com/download/tnspoison.pdf

Notes:

Oracle Real Application Cluster requires a different approach to fix the TNS Poisoning problem. See Oracle support note 1453883.1 for details.

See Also

https://workbench.cisecurity.org/files/2741

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-8, CSCv6|14.2, CSCv7|14.4

Plugin: Unix

Control ID: 53e04fd7060732f579c4d0b10dac18d241b856d65005a2319600cc8967fd9a8a