STIGQter: STIG Summary: Video Services Policy STIG Version: 1 Release: 11 Benchmark Date: 24 Apr 2020:

ISDN-based VTC equipment supporting secure (classified) and non-secure (unclassified) conferences which implement dial isolators and A/B switches must meet minimum port-to-port isolation standards.

DISA Rule

SV-55778r1_rule

Vulnerability Number

V-43049

Group Title

RTS-VTC 7420 [ISDN]

Rule Version

RTS-VTC 7420

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Obtain and install DVS-approved dial isolators and A/B switches that maintain the following port-to-port isolation standards:
• 100 dB over the baseband audio frequency range between 0.3 and 15 kHz.
• 80 dB over the baseband video frequency range up to 5 MHz.
• 60 dB over the frequency range from one times (Rd) to ten times the basic data rate (10Rd) of the digital signal(s) processed.

Check Contents

Review documentation to determine whether approved dial isolators and A/B switches are being used. DISN Video Services (DVS) maintains a list of A/B switches and dial isolators that have been TEMPEST certified to meet the above requirements at http://disa.mil/Services/Network-Services/Video/~/media/Files/DISA/Services/DVS/red_black_peripherals.xls.
If the A/B switch or dial isolator is not on the list, this is a finding.

Vulnerability Number

V-43049

Documentable

False

Rule Version

RTS-VTC 7420

Severity Override Guidance

Review documentation to determine whether approved dial isolators and A/B switches are being used. DISN Video Services (DVS) maintains a list of A/B switches and dial isolators that have been TEMPEST certified to meet the above requirements at http://disa.mil/Services/Network-Services/Video/~/media/Files/DISA/Services/DVS/red_black_peripherals.xls.
If the A/B switch or dial isolator is not on the list, this is a finding.

Check Content Reference

M

Responsibility

Information Assurance Officer

Target Key

1418

Comments