STIGQter STIGQter: STIG Summary: Cisco IOS XR Router NDM Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

The Cisco router must be configured to implement replay-resistant authentication mechanisms for network access to privileged accounts.

DISA Rule

SV-216531r531088_rule

Vulnerability Number

V-216531

Group Title

SRG-APP-000156-NDM-000250

Rule Version

CISC-ND-000530

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the router to use SSH version 2 as shown in the example below.

RP/0/0/CPU0:R3(config)#ssh server v2

Check Contents

Review the router configuration to verify that SSH version 2 is configured as shown in the example below.

ssh server v2

Note: IOS XR supports SSHv1 and SSHv2. SSHv1 uses Rivest, Shamir, and Adelman (RSA) keys while SSHv2 uses Digital Signature Algorithm (DSA) keys.

If the router is not configured to implement replay-resistant authentication mechanisms for network access to privileged accounts, this is a finding.

Vulnerability Number

V-216531

Documentable

False

Rule Version

CISC-ND-000530

Severity Override Guidance

Review the router configuration to verify that SSH version 2 is configured as shown in the example below.

ssh server v2

Note: IOS XR supports SSHv1 and SSHv2. SSHv1 uses Rivest, Shamir, and Adelman (RSA) keys while SSHv2 uses Digital Signature Algorithm (DSA) keys.

If the router is not configured to implement replay-resistant authentication mechanisms for network access to privileged accounts, this is a finding.

Check Content Reference

M

Target Key

4023

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