STIGUI
V-256582CAT II — Medium severitySV-256582r1268251_rule

The Photon operating system must protect all "sysctl" configuration files from unauthorized access.

Rule version PHTN-30-000113 · STIG v1 · 2026-08-31

Discussion

The "sysctl" configuration file specifies values for kernel parameters to be set on boot. Incorrect or malicious configuration of these parameters can have a negative effect on system security.

Check

At the command line, run the following command:

# find /etc/sysctl.conf /etc/sysctl.d/* -xdev -type f -a '(' -perm -002 -o -not -user root -o -not -group root ')' -exec ls -ld {} \;

If any files are returned, this is a finding.

Fix

At the command line, run the following commands for each returned file:

# chmod 600 <file>
# chown root:root <file>

Identifiers

Group ID
V-256582
Group title
SRG-OS-000480-GPOS-00227
Rule ID
SV-256582r1268251_rule
Check ID
C-60257r887418_chk
Fix ID
F-60200r887419_fix