STIGQter: STIG Summary: Symantec ProxySG ALG Security Technical Implementation Guide Version: 1 Release: 3 Benchmark Date: 24 Apr 2020:

Symantec ProxySG providing forward proxy encryption intermediary services must use NIST FIPS-validated cryptography to implement encryption services.

DISA Rule

SV-104257r1_rule

Vulnerability Number

V-94303

Group Title

SRG-NET-000510-ALG-000111

Rule Version

SYMP-AG-000450

Severity

CAT II

CCI(s)

• CCI-002450 - The information system implements organization-defined cryptographic uses and type of cryptography required for each use in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.

Weight

10

Fix Recommendation

Configure TLS intermediary services to comply with NIST FIPS-validated cryptography.

1. Log on to the Web Management Console.
2. Click Configuration >> Visual Policy Manager.
3. Click "Launch". While in the Visual Policy Manager, click Policy >> Add SSL Access Layer.
4. Right-click the "Source" field of the existing rule and select "Set". Click "New" and select "Combined Source Object".
5. Click "New" and select "Client Negotiated Cipher". Select all ciphers that should be permitted and click "OK".
6. Click the upper "Add" button and click the "Negate" checkbox.
7. Click "New" and select "Client Negotiated SSL Version". Select all NIST FIPS-validated SSL versions that should be permitted and click "OK".
8. Click the upper "Add" button.
9. Click "OK" and then "OK" again.
10. Repeat steps 4-9 for the "Destination" field using the "Server Negotiated Cipher" and "Server Negotiated SSL Version" objects.
11. Right-click the "Action" field of the rule, click "Set", and select "Deny".
12. Click File >> Install Policy on SG Appliance.

Check Contents

Verify that TLS intermediary services are configured to comply with NIST FIPS-validated cryptography.

1. Log on to the Web Management Console.
2. Click Configuration >> Visual Policy Manager.
3. Click "Launch". While in the Visual Policy Manager, for each SSL Access Layer that is configured, verify there is a rule with an action set to "Deny" that also has "Source" and "Destination" fields that contain a negated list of NIST FIPS-validated SSL/TLS protocols and ciphers.

If Symantec ProxySG providing forward proxy encryption intermediary services does not use NIST FIPS-validated cryptography to implement encryption services, this is a finding.

Vulnerability Number

V-94303

Documentable

False

Rule Version

SYMP-AG-000450

Severity Override Guidance

Verify that TLS intermediary services are configured to comply with NIST FIPS-validated cryptography.

1. Log on to the Web Management Console.
2. Click Configuration >> Visual Policy Manager.
3. Click "Launch". While in the Visual Policy Manager, for each SSL Access Layer that is configured, verify there is a rule with an action set to "Deny" that also has "Source" and "Destination" fields that contain a negated list of NIST FIPS-validated SSL/TLS protocols and ciphers.

If Symantec ProxySG providing forward proxy encryption intermediary services does not use NIST FIPS-validated cryptography to implement encryption services, this is a finding.

Check Content Reference

M

Target Key

3515

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