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Check: RHEL-09-412010

RHEL 9 STIG: RHEL-09-412010 (in versions v1 r3 through v1 r1)

Title

RHEL 9 must have the tmux package installed. (Cat II impact)

Discussion

Tmux is a terminal multiplexer that enables a number of terminals to be created, accessed, and controlled from a single screen. Red Hat endorses tmux as the recommended session controlling package. Satisfies: SRG-OS-000030-GPOS-00011, SRG-OS-000028-GPOS-00009

Check Content

Verify that RHEL 9 has the tmux package installed with the following command: $ sudo dnf list --installed tmux Example output: tmux.x86_64 3.2a-4.el9 If the "tmux" package is not installed, this is a finding.

Fix Text

The tmux package can be installed with the following command: $ sudo dnf install tmux

Additional Identifiers

Rule ID: SV-258063r926176_rule

Vulnerability ID: V-258063

Group Title: SRG-OS-000030-GPOS-00011

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-000056	The information system retains the session lock until the user reestablishes access using established identification and authentication procedures.
CCI-000058	The information system provides the capability for users to directly initiate session lock mechanisms.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-11	Session Lock