Detections
Analytics
PHTN-40-000067 - The Photon operating system must restrict access to the kernel message buffer.
Information
Restricting access to the kernel message buffer limits access only to root. This prevents attackers from gaining additional system information as a nonprivileged user.Solution
Navigate to and open:/etc/sysctl.d/zz-stig-hardening.conf
Add or update the following line:
kernel.dmesg_restrict = 1
At the command line, run the following command to load the new configuration:
# /sbin/sysctl --load /etc/sysctl.d/zz-stig-hardening.conf
Note: If the file zz-stig-hardening.conf does not exist, it must be created.
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_8-0_Y26M07_STIG.zip
Item Details
Category: SYSTEM AND COMMUNICATIONS PROTECTION
References: 800-53|SC-4, CAT|II, CCI|CCI-001090, Rule-ID|SV-258828r1137695_rule, STIG-ID|PHTN-40-000067, Vuln-ID|V-258828
Plugin: Unix
Control ID: 38a9b4f03d21c63afb88e7e2d7da6d40bb9ebef894617a2e1f66a9f1c5d85319