AIX device files and directories must only be writable by users with a system account or as configured by the vendor.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-215184	SRG-OS-000259-GPOS-00100	AIX7-00-001019	SV-215184r991560_rule	2024-08-16	3

Description
System device files in writable directories could be modified, removed, or used by an unprivileged user to control system hardware.

ℹ️ Check
Find all device files existing anywhere on the system using commands: # find / -type b -print \| xargs ls -l > devicelistB # find / -type c -print \| xargs ls -l > devicelistC Look at devicelistB and devicelistC files to check the permissions on the device files and directories above the subdirectories containing device files. If any of the device files or their parent directories are world-writable, excepting device files specifically intended to be world-writable, such as "/dev/null", this is a finding.

ℹ️ Check

Find all device files existing anywhere on the system using commands: # find / -type b -print | xargs ls -l > devicelistB # find / -type c -print | xargs ls -l > devicelistC Look at devicelistB and devicelistC files to check the permissions on the device files and directories above the subdirectories containing device files. If any of the device files or their parent directories are world-writable, excepting device files specifically intended to be world-writable, such as "/dev/null", this is a finding.

✔️ Fix
Remove the world-writable permission from the device file(s) using command: # chmod o-w <device file>