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V-253862

CAT II (Medium)

The SSLCipherSuite must be configured to disable weak encryption algorithms on the Tanium Server.

Rule ID

SV-253862r997284_rule

STIG

Tanium 7.x Security Technical Implementation Guide

Version

V2R3

CCIs

CCI-002450

Discussion

Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The application must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.

Check Content

1. Access the Tanium Server.

2. Log on to the server with an account that has administrative privileges.

3. Access the server's registry by typing: "regedit".

4. Click "Enter".

5. Navigate to HKEY_LOCAL_MACHINE >> SOFTWARE >> Wow6432Node >> Tanium >> Tanium Server.

6. Verify the existence of the string "SSLCipherSuite" with a value of:

ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK

If the string "SSLCipherSuite" does not exist with the appropriate list values, this is a finding.

Fix Text

1. Access the Tanium Server.

2. Log on to the server with an account that has administrative privileges.

3. Access the server's registry by typing: regedit <enter>.

4. Navigate to HKEY_LOCAL_MACHINE >> SOFTWARE >> Wow6432Node >> Tanium >> Tanium Server.

5. Add a new string (REG_SZ) or modify the string "SSLCipherSuite" to have a value of:

ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK