Tanium 7.x Operating System on TanOS Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Tanium must audit and notify system administrators (SAs) and information system security officers (ISSOs) when accounts are enabled.
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an exis...Rule Medium Severity -
The Tanium operating system (TanOS) must provide an immediate warning to the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of repository maximum audit record storage capacity.
If security personnel are not notified immediately when storage volume reaches 75 percent, they are unable to plan for audit record storage capacity expansion.Rule Medium Severity -
The Tanium operating system (TanOS) must, for networked systems, compare internal information system clocks at least every 24 hours with a server synchronized to one of the redundant United States Naval Observatory (USNO) time servers or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS).
Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when condu...Rule Medium Severity -
The Tanium Operating System (TanOS) must be configured to synchronize internal information system clocks with the primary and secondary time sources located in different geographic regions using redundant authoritative time sources.
The loss of connectivity to a particular authoritative time source will result in the loss of time synchronization (free-run mode) and increasingly inaccurate time stamps on audit events and other ...Rule Medium Severity -
The Tanium operating system (TanOS) must perform data integrity verification on the name/address resolution responses the system receives from authoritative sources.
If data origin authentication and data integrity verification is not performed, the resultant response could be forged, it may have come from a poisoned cache, the packets could have been intercept...Rule Medium Severity
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