STIGQter: STIG Summary: Tanium 7.x Operating System on TanOS Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 02 Apr 2025:

The Tanium Operating System (TanOS) must notify system administrators (SAs) and information system security officers (ISSOs) when accounts are removed.

DISA Rule

SV-254858r1015856_rule

Vulnerability Number

V-254858

Group Title

SRG-OS-000277

Rule Version

TANS-OS-000725

Severity

CAT II

CCI(s)

• CCI-000015 - Support the management of system accounts using (organization-defined automated mechanisms).

Weight

10

Fix Recommendation

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 press then "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 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 press "Enter".

9. Work with the SIEM administrator to validate events are being received, and to configure notifications for account removal/deletion events.

Check Contents

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 "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 removal events, this is not a finding.

Vulnerability Number

V-254858

Documentable

False

Rule Version

TANS-OS-000725

Severity Override Guidance

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 "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 removal events, this is not a finding.

Check Content Reference

M

Target Key

5491