The Tanium Server certificates must have Extended Key Usage entries for the serverAuth object TLS Web Server Authentication and the clientAuth object TLS Web Client Authentication.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-78687	SRG-APP-000175	TANS-SV-000020	SV-93393r1_rule	2018-07-09	1

Description
Information can be either unintentionally or maliciously disclosed or modified during reception including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. 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 receiving data, applications need to leverage protection mechanisms, such as TLS, SSL VPNs, or IPsec.

Description

Information can be either unintentionally or maliciously disclosed or modified during reception including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. 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 receiving data, applications need to leverage protection mechanisms, such as TLS, SSL VPNs, or IPsec.

ℹ️ Check
Access the Tanium Server interactively. Log on with an account with administrative privileges to the server. Navigate to Program Files >> Tanium >> Tanium Server. Locate the SOAPServer.crt file. Double-click on the file to open the certificate. Select the "Details" tab. Scroll down through the details to find and select the "Enhanced Key Usage" Field. If there is no "Enhanced Key Usage" field, this is a finding. In the bottom screen, verify "Server Authentication" and "Client Authentication" are both identified. If "Server Authentication" and "Client Authentication" are not both identified, this is a finding.

ℹ️ Check

Access the Tanium Server interactively. Log on with an account with administrative privileges to the server. Navigate to Program Files >> Tanium >> Tanium Server. Locate the SOAPServer.crt file. Double-click on the file to open the certificate. Select the "Details" tab. Scroll down through the details to find and select the "Enhanced Key Usage" Field. If there is no "Enhanced Key Usage" field, this is a finding. In the bottom screen, verify "Server Authentication" and "Client Authentication" are both identified. If "Server Authentication" and "Client Authentication" are not both identified, this is a finding.

✔️ Fix
Request or regenerate the certificate being used to include both the "Server Authentication" and "Client Authentication" objects.