Tanium must limit the bandwidth used in communicating with endpoints to prevent a denial-of-service (DoS) condition at the server.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-78749	TANS-SV-000062	SV-93455r1_rule		Medium

Description
DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This requirement addresses the configuration of applications to mitigate the impact of DoS attacks that have occurred or are ongoing on application availability. For each application, known and potential DoS attacks must be identified and solutions for each type implemented. A variety of technologies exist to limit or, in some cases, eliminate the effects of DoS attacks (e.g., limiting processes or restricting the number of sessions the application opens at one time). Employing increased capacity and bandwidth, combined with service redundancy, may reduce the susceptibility to some DoS attacks.

Description

DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This requirement addresses the configuration of applications to mitigate the impact of DoS attacks that have occurred or are ongoing on application availability. For each application, known and potential DoS attacks must be identified and solutions for each type implemented. A variety of technologies exist to limit or, in some cases, eliminate the effects of DoS attacks (e.g., limiting processes or restricting the number of sessions the application opens at one time). Employing increased capacity and bandwidth, combined with service redundancy, may reduce the susceptibility to some DoS attacks.

STIG	Date
Tanium 7.0 Security Technical Implementation Guide	2018-07-09

Details

Check Text ( C-78325r1_chk )
Access the Tanium Server interactively. Log on with an account with administrative privileges to the server. Access the server's registry by typing: regedit . Navigate to HKEY_LOCAL_MACHINE >> SOFTWARE >> Wow6432Node >> Tanium >> Tanium Server. Verify the existence of a DWORD "DownloadBytesPerSecondLimit" with a value matching what is in the system documentation. If the DWORD "DownloadBytesPerSecondLimit" does not exist with the correct value, this is a finding.

Check Text ( C-78325r1_chk )

Access the Tanium Server interactively.

Log on with an account with administrative privileges to the server.

Access the server's registry by typing: regedit .

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

Verify the existence of a DWORD "DownloadBytesPerSecondLimit" with a value matching what is in the system documentation.

If the DWORD "DownloadBytesPerSecondLimit" does not exist with the correct value, this is a finding.

Fix Text (F-85491r1_fix)
Access the Tanium Server interactively. Log on with an account with administrative privileges to the server. Access the server's registry by typing: regedit . Navigate to HKEY_LOCAL_MACHINE >> SOFTWARE >> Wow6432Node >> Tanium >> Tanium Server. Add or modify the DWORD "DownloadBytesPerSecondLimit" to have a value consistent with the value found in the system documentation.