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ANSSI-BP-028 (high)

Rules and Groups employed by this XCCDF Profile

  • Enable checks on credential management

    Enable this to turn on some debug checking for credential management. The additional code keeps track of the number of pointers from task_structs t...
    Rule Low Severity
  • Disable kernel debugfs

    <code>debugfs</code> is a virtual file system that kernel developers use to put debugging files into. Enable this option to be able to read and wri...
    Rule Low Severity
  • Enable checks on linked list manipulation

    Enable this to turn on extended checks in the linked-list walking routines. The configuration that was used to build kernel is available at <code>...
    Rule Low Severity
  • Enable checks on notifier call chains

    Enable this to turn on sanity checking for notifier call chains. This is most useful for kernel developers to make sure that modules properly unreg...
    Rule Low Severity
  • Enable checks on scatter-gather (SG) table operations

    Scatter-gather tables are mechanism used for high performance I/O on DMA devices. Enable this to turn on checks on scatter-gather tables. The conf...
    Rule Low Severity
  • Configure low address space to protect from user allocation

    This is the portion of low virtual memory which should be protected from userspace allocation. This configuration is available from kernel 3.14, bu...
    Rule Medium Severity
  • Disable /dev/kmem virtual device support

    Disable support for the /dev/kmem device. The configuration that was used to build kernel is available at <code>/boot/config-*</code>. To chec...
    Rule Low Severity
  • Harden memory copies between kernel and userspace

    This option checks for obviously wrong memory regions when copying memory to/from the kernel (via copy_to_user() and copy_from_user() functions) by...
    Rule High Severity
  • Disable hibernation

    Enable the suspend to disk (STD) functionality, which is usually called "hibernation" in user interfaces. STD checkpoints the system and powers it ...
    Rule Medium Severity
  • Disable IA32 emulation

    Disables support for legacy 32-bit programs under a 64-bit kernel. The configuration that was used to build kernel is available at <code>/boot/con...
    Rule Medium Severity
  • Disable kexec system call

    <code>kexec</code> is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot b...
    Rule Low Severity
  • Disable legacy (BSD) PTY support

    Disable the Linux traditional BSD-like terminal names /dev/ptyxx for masters and /dev/ttyxx for slaves of pseudo terminals, and use only the modern...
    Rule Medium Severity
  • Enable module signature verification

    Check modules for valid signatures upon load. Note that this option adds the OpenSSL development packages as a kernel build dependency so that the ...
    Rule Medium Severity
  • Enable automatic signing of all modules

    Sign all modules during make modules_install. Without this option, modules must be signed manually, using the scripts/sign-file tool. The configur...
    Rule Medium Severity
  • Require modules to be validly signed

    Reject unsigned modules or signed modules with an unknown key. The configuration that was used to build kernel is available at <code>/boot/config-...
    Rule Medium Severity
  • Specify the hash to use when signing modules

    This configures the kernel to build and sign modules using <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_kernel_config_module_sig_ha...
    Rule Medium Severity
  • Specify module signing key to use

    Setting this option to something other than its default of <code>certs/signing_key.pem</code> will disable the autogeneration of signing keys and a...
    Rule Medium Severity
  • Sign kernel modules with SHA-512

    This configures the kernel to build and sign modules using SHA512 as the hash function. The configuration that was used to build kernel is availab...
    Rule Medium Severity
  • Enable poison without sanity check

    Skip the sanity checking on alloc, only fill the pages with poison on free. This reduces some of the overhead of the poisoning feature. This config...
    Rule Medium Severity
  • Use zero for poisoning instead of debugging value

    Instead of using the existing poison value, fill the pages with zeros. This makes it harder to detect when errors are occurring due to sanitization...
    Rule Medium Severity

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