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Tanium must audit and notify system administrators (SAs) and information system security officers (ISSOs) when accounts are enabled.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-254860TANS-OS-000860SV-254860r1015857_ruleCCI-000015medium
Description
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 existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements.
STIGDate
Tanium 7.x Operating System on TanOS Security Technical Implementation Guide2025-02-11

Related Frameworks

2 mappings across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-15.4Automated Audit Actions
1.00
IAC-15.1Automated System Account Management (Directory Services)
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (77) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-12Session Termination
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00

+67 more (top 10 by confidence shown)

CCI2 mappings
CCI-000015
1.00
CCI-002132
1.00

Details

Check Text (C-254860r1015857_chk)

1. Access the Tanium Operating System (TanOS) interactively. 2. Press "A" for "Appliance Configuration Menu," and then press "Enter". 3. Press "4" for "Syslog Configuration," and then press "Enter". 4. Press "1" for "Check current status," and then press "Enter". If the syslog status page states, "No existing TanOS syslog forwarding configuration found", this is a finding. If the syslog status page states, "Syslog forwarding configuration" and the SIEM administrator verifies SIEM is receiving the events correctly and generating notifications for account enable events, this is not a finding.

Fix Text (F-58417r866120_fix)

1. Access the TanOS interactively. 2. Press "A" for "Appliance Configuration Menu," and then press "Enter". 3. Press "4" for "Syslog Configuration," and then press "Enter". 4. Press "5" for "Configure syslog forwarding," and then press "Enter". 5. Enter the destination host (IP address or hostname) provided by the SIEM administrator, and then press "Enter". 6. Enter the destination port number and then press "Enter". 7. If TLS is required for this syslog destination, enter "Yes", otherwise enter "No", and then press "Enter". 8. Enter the destination protocol, "udp" or "tcp", and then press "Enter". 9. Work with the SIEM administrator to validate events are being received, and to configure notifications for account removal/deletion events.