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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-240422 | VRAU-SL-000505 | SV-240422r671007_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 |
|---|---|
| VMware vRealize Automation 7.x SLES Security Technical Implementation Guide | 2021-06-24 |
Details
| Check Text ( C-43655r671005_chk ) |
|---|
| Ask the SA if RDS is required by application software running on the system. If so, this is not applicable. Check that the RDS protocol handler is prevented from dynamic loading: # grep "install rds /bin/true" /etc/modprobe.conf /etc/modprobe.conf.local /etc/modprobe.d/* If no result is returned, this is a finding. |
| Fix Text (F-43614r671006_fix) |
|---|
| Prevent the use of RDS protocol handler for dynamic loading: # echo "install rds /bin/true" >> /etc/modprobe.conf.local |