The Cisco IOS XE router must reveal error messages only to authorized individuals (ISSO, ISSM, and SA).

From Cisco IOS XE Release 3 NDM Security Technical Implementation Guide

Associated with: CCI-001314

SV-88703r2_rule The Cisco IOS XE router must reveal error messages only to authorized individuals (ISSO, ISSM, and SA).

Vulnerability discussion

Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state. Additionally, sensitive account information must not be revealed through error messages to unauthorized personnel or their designated representatives.

Check content

Verify that the Cisco IOS XE router is configured to reveal error messages only to authorized individuals. The configuration should look similar to the example below: parser view Senior-Admin secret 5 $1$hW3m$PE.3zCJYeSrvYflFey71R. commands exec include all configure commands exec include all show parser view Auditor secret 5 $1$qb3F$SrdJW2oyyDzq1L94I7eED. commands exec include show logging If it is not configured to reveal error messages only to authorized individuals, this is a finding.

Fix text

Use CLI views to control who can view error messages. The configuration should look similar to the example below: parser view Senior-Admin secret 5 $1$hW3m$PE.3zCJYeSrvYflFey71R. commands exec include all configure commands exec include all show parser view Auditor secret 5 $1$qb3F$SrdJW2oyyDzq1L94I7eED. commands exec include show logging

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