A/B switches, that are connected to devices or ISs which are at different classification levels, are cascaded.

From Keyboard, Video, Mouse Switch Security STIG

Part of A/B Cascaded Differing Classification

Associated with IA controls: DCBP-1

SV-6983r1_rule A/B switches, that are connected to devices or ISs which are at different classification levels, are cascaded.

Vulnerability discussion

When A/B switches are cascaded it is difficult to verify that the currently selected connection is the correct selection. When A/B switches are used with ISs of differing classification levels this can lead to the compromis of sensitive data.When A/B switches are attached to ISs of different classification levels the IAO or SA will ensure that A/B switches are not cascaded.

Check content

The reviewer will, for A/B switches, which are connected to devices or ISs that are at different classification levels, view the A/B switch to verify that A/B switches are not cascaded.

Fix text

Remove the cascaded A/B switches that are connected to ISs of different classification levels.

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