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XCCDF
CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide
SRG-OS-000366-GPOS-00153
SRG-OS-000366-GPOS-00153
An XCCDF Group - A logical subset of the XCCDF Benchmark
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SRG-OS-000366-GPOS-00153
1 Rule
AlmaLinux OS 9 must prevent the loading of a new kernel for later execution.
Medium Severity
Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor. Disabling kexec_load prevents an unsigned kernel image (that could be a windows kernel or modified vulnerable kernel) from being loaded. Kexec can be used subvert the entire secureboot process and should be avoided at all costs especially since it can load unsigned kernel images.