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Ubuntu OS must restrict SSH access to allow only NetIM internal communication.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-275617RIIM-OS-255010SV-275617r1148290_ruleCCI-002418medium
Description
Remote access is not authorized for connection to the Riverbed NetIM shell to minimize and deter system administrators from accessing the shell, bash commands, or root account remotely. Though the device is not critical to the infrastructure, compromise of this device at the OS level could lead to compromise of other devices on the network.
STIGDate
Riverbed NetIM OS Security Technical Implementation Guide2025-10-02

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 4 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CRY-01Use of Cryptographic Controls
1.00
CRY-03Transmission Confidentiality
1.00
CRY-04Transmission Integrity
1.00
DCH-01Data Protection
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (29) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-18(1)Authentication and Encryption
1.00
AC-3Access Enforcement
1.00
CM-6Configuration Settings
1.00
CM-7Least Functionality
1.00
IA-11Re-authentication
1.00
IA-2(8)Access to Accounts — Replay Resistant
1.00
IA-2(9)Network Access to Non-privileged Accounts — Replay Resistant
1.00

+19 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.13.8
1.00
CCI1 mapping
CCI-002418
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.DS-02
1.00

Who does this work

8 NICE work roles and 7 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-275617r1148290_chk)

Verify firewall rule exists to restrict SSH to allow specific IP addresses only by using the following commands: $ sudo ufw status If a firewall rule does not exist to restrict port 22 to allow specific IP addresses and deny all other address, this is a finding.

Fix Text (F-79624r1147900_fix)

Deny all other SSH connections and allow SSH connections from a specific IP address by using the following commands. Allow from NetIM core/worker(s)/manager in a base configuration with UFW allow. $ sudo ufw deny from any to any port 22 $ sudo ufw allow from <NETIM_IP_ADDRESS node list> to any port 22 Where NETIM_IP_ADDRESS list are the list of NETIM IP addresses for all nodes. Note: This will restrict system admins to use of the CONSOLE mechanism available depending on the Virtual Platform being used.