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The Reliable Datagram Sockets (RDS) protocol must be disabled or not installed unless required.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22530 | GEN007480 | SV-45975r1_rule | Medium |
| Description |
|---|
| The RDS protocol is a relatively new protocol developed by Oracle for communication between the nodes of a cluster. Binding this protocol to the network stack increases the attack surface of the host. Unprivileged local processes may be able to cause the system to dynamically load a protocol handler by opening a socket using the protocol. |
| STIG | Date |
|---|---|
| SUSE Linux Enterprise Server v11 for System z | 2016-12-20 |
Details
| Check Text ( C-43257r1_chk ) |
|---|
| Ask the SA if RDS is required by application software running on the system. If so, this is not applicable. Verify the RDS protocol handler is prevented from dynamic loading. # grep 'install rds' /etc/modprobe.conf /etc/modprobe.conf.local /etc/modprobe.d/* | grep ‘/bin/true’ If no result is returned, this is a finding. |
| Fix Text (F-39340r1_fix) |
|---|
| Prevent the RDS protocol handler for dynamic loading. # echo "install rds /bin/true" >> /etc/modprobe.conf.local |