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The DECnet protocol must be disabled or not installed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-240451 | VRAU-SL-000650 | SV-240451r671094_rule | Medium |
| Description |
|---|
| The DECnet suite of protocols is no longer in common use. 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-43684r671092_chk ) |
|---|
| Check that the DECnet protocol handler is prevented from dynamic loading: # grep "install decnet /bin/true" /etc/modprobe.conf /etc/modprobe.conf.local /etc/modprobe.d/* If no result is returned, this is a finding. |
| Fix Text (F-43643r671093_fix) |
|---|
| Prevent the DECnet protocol handler for dynamic loading: # echo "install decnet /bin/true" >> /etc/modprobe.conf.local |