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1.406 RHEL-10-800050

Information

RHEL 10 must enable hardening for the Berkeley Packet Filter (BPF) just-in-time compiler.

GROUP ID: V-281337RULE ID: SV-281337r1167161

When hardened, the extended BPF just-in-time (JIT) compiler will randomize any kernel addresses in the BPF programs and maps, and will not expose the JIT addresses in "/proc/kallsyms".

Solution

Configure RHEL 10 to enable hardening for the BPF JIT compiler.

Create the drop-in file if it does not already exist:

$ sudo vi /etc/sysctl.d/99-net_core-bpf_jit_harden.conf

Add the following line to the file:

net.core.bpf_jit_harden = 2

Reload settings from all system configuration files with the following command:

$ sudo sysctl --system

See Also

https://workbench.cisecurity.org/benchmarks/26403

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-16, CAT|II, CCI|CCI-002824, Rule-ID|SV-281337r1167161_rule, STIG-ID|RHEL-10-800050, Vuln-ID|V-281337

Plugin: Unix

Control ID: fbefd7591ad2f0653ed4a6747b0eb33aac2ec844cbeaf55a1a28d8a5a4af69f0