RHEL 9 must have the tmux package installed.

STIG ID: RHEL-09-412010  |  SRG: SRG-OS-000030-GPOS-00011 |  Severity: medium |  CCI: CCI-000056,CCI-000057 |  Vulnerability Id: V-258063 | 

Vulnerability 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

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

The tmux package can be installed with the following command:

$ sudo dnf install tmux
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