ANSSI-BP-028 (intermediary)
Rules and Groups employed by this XCCDF Profile
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Secure Session Configuration Files for Login Accounts
When a user logs into a Unix account, the system configures the user's session by reading a number of files. Many of these files are located in the...Group -
Configure Polyinstantiation of /tmp Directories
To configure polyinstantiated /tmp directories, first create the parent directories which will hold the polyinstantiation child directories. Use th...Rule Low Severity -
Configure Polyinstantiation of /var/tmp Directories
To configure polyinstantiated /tmp directories, first create the parent directories which will hold the polyinstantiation child directories. Use th...Rule Low Severity -
Set Interactive Session Timeout
Setting the <code>TMOUT</code> option in <code>/etc/profile</code> ensures that all user sessions will terminate based on inactivity. The value of ...Rule Medium Severity -
System Accounting with auditd
The audit service provides substantial capabilities for recording system activities. By default, the service audits about SELinux AVC denials and c...Group -
Ensure the audit Subsystem is Installed
The audit package should be installed.Rule Medium Severity -
Enable auditd Service
The <code>auditd</code> service is an essential userspace component of the Linux Auditing System, as it is responsible for writing audit records to...Rule Medium Severity -
Configure auditd Rules for Comprehensive Auditing
The <code>auditd</code> program can perform comprehensive monitoring of system activity. This section describes recommended configuration settings ...Group -
Record Information on the Use of Privileged Commands
At a minimum, the audit system should collect the execution of privileged commands for all users and root.Group -
Ensure auditd Collects Information on the Use of Privileged Commands - sudo
At a minimum, the audit system should collect the execution of privileged commands for all users and root. If the <code>auditd</code> daemon is con...Rule Medium Severity -
GRUB2 bootloader configuration
During the boot process, the boot loader is responsible for starting the execution of the kernel and passing options to it. The boot loader allows ...Group -
Configure L1 Terminal Fault mitigations
L1 Terminal Fault (L1TF) is a hardware vulnerability which allows unprivileged speculative access to data which is available in the Level 1 Data Ca...Rule High Severity -
Force kernel panic on uncorrected MCEs
A Machine Check Exception is an error generated by the CPU itdetects an error in itself, memory or I/O devices. These errors may be corrected and g...Rule Medium Severity -
Configure Microarchitectural Data Sampling mitigation
Microarchitectural Data Sampling (MDS) is a hardware vulnerability which allows unprivileged speculative access to data which is available in vario...Rule Medium Severity -
Enable randomization of the page allocator
To enable randomization of the page allocator in the kernel, add the <code>page_alloc.shuffle=1</code> argument to the default GRUB 2 command line....Rule Medium Severity -
Enable Kernel Page-Table Isolation (KPTI)
To enable Kernel page-table isolation, add the argument <code>pti=on</code> to the default GRUB 2 command line for the Linux operating system. To e...Rule Low Severity -
Configure the confidence in TPM for entropy
The TPM security chip that is available in most modern systems has a hardware RNG. It is also used to feed the entropy pool, but generally not cred...Rule Low Severity -
Disable merging of slabs with similar size
The kernel may merge similar slabs together to reduce overhead and increase cache hotness of objects. Disabling merging of slabs keeps the slabs se...Rule Medium Severity -
Configure Speculative Store Bypass Mitigation
Certain CPUs are vulnerable to an exploit against a common wide industry wide performance optimization known as Speculative Store Bypass (SSB). In...Rule Medium Severity -
Enforce Spectre v2 mitigation
Spectre V2 is an indirect branch poisoning attack that can lead to data leakage. An exploit for Spectre V2 tricks the indirect branch predictor int...Rule High Severity
Node 2
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