Detections
Analytics

1.298 OL09-00-002391

Information

OL 9 must enable mitigations against processor-based vulnerabilities.

GROUP ID: V-271735
RULE ID: SV-271735r1091917

Kernel page-table isolation is a kernel feature that mitigates the Meltdown security vulnerability and hardens the kernel against attempts to bypass kernel address space layout randomization (KASLR).

Satisfies: SRG-OS-000433-GPOS-00193, SRG-OS-000095-GPOS-00049

Solution

Configure OL 9 to enable kernel page-table isolation with the following command:

$ sudo grubby --update-kernel=ALL --args="pti=on"

Add or modify the following line in "/etc/default/grub" to ensure the configuration survives kernel updates:

GRUB_CMDLINE_LINUX="pti=on"

See Also

https://workbench.cisecurity.org/benchmarks/27024

Item Details

Category: CONFIGURATION MANAGEMENT, SYSTEM AND INFORMATION INTEGRITY

References: 800-53|CM-7, 800-53|CM-7a., 800-53|SI-16, CCI|CCI-000381, CCI|CCI-002824, Rule-ID|SV-271735r1091917_rule, STIG-ID|OL09-00-002391, Vuln-ID|V-271735

Plugin: Unix

Control ID: f0e138a7772cb435ea47c2c2000f3546767bf036582c10e9363bd24ebaf6f7bc