Tanium must be configured to communicate using TLS 1.2 Strict Only.

From Tanium 7.0 Security Technical Implementation Guide

Part of SRG-APP-000439

Associated with: CCI-002418

SV-93475r1_rule Tanium must be configured to communicate using TLS 1.2 Strict Only.

Vulnerability discussion

Without protection of the transmitted information, confidentiality and integrity may be compromised since unprotected communications can be intercepted and either read or altered.This requirement applies only to those applications that are either distributed or can allow access to data non-locally. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When transmitting data, applications need to leverage transmission protection mechanisms, such as TLS, SSL VPNs, or IPsec. FIPS 140-2 approved TLS versions must be enabled, and non-FIPS-approved SSL versions must be disabled. NIST SP 800-52 defines the approved TLS versions for government applications.Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa.

Check content

Access the Tanium Server interactively. Log on with an account with administrative privileges to the server. Access the server's registry by typing: "regedit". Press "Enter". Navigate to: HKEY_LOCAL_MACHINE >> SYSTEM >> CurrentControlSet >> Control >> SecurityProviders >> SCHANNEL >> Protocols >> SSL 3.0 >> Server Name: DisabledByDefault Type: REG_DWORD Data: 0x0000001 (hex) If the value for "DisabledByDefault" is not set to "1" and "Type" is not configured to "REG_DWORD" or does not exist, this is a finding. Name: Enabled Type: REG_DWORD Data: 0x00000000 (hex) If the value for "Enabled" is not set to "0" and "Type" is not configured to "REG_DWORD" or does not exist, this is a finding.

Fix text

Access the Tanium Server interactively. Log on with an account with administrative privileges to the server. Access the server's registry by typing: "regedit". Press "Enter". Navigate to: HKEY_LOCAL_MACHINE >> SYSTEM >> CurrentControlSet >> Control >> SecurityProviders >> SCHANNEL >> Protocols >> SSL 3.0 >> Server Right-click in the right window pane. Select: New >> DWORD (32-bit) Value In the "Name" field, enter "DisabledByDefault" and press "Enter". Right-click on the newly created "Name" and select "Modify..." Enter "1" in "Value data:" and ensure that under "Base" the "Hexadecimal" radio button is selected. Click "OK". Right-click in the right window pane. Select: New >> DWORD (32-bit) Value In the "Name" field, enter "Enabled" and press "Enter". Right-click on the newly created "Name" and select "Modify..." Leave the default value of "0" in "Value data:" and ensure that under "Base" the "Hexadecimal" radio button is selected. Click "OK".

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