Standard System Security Profile for Kylin Server V10
Rules and Groups employed by this XCCDF Profile
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Enable SSH Print Last Log
Ensure that SSH will display the date and time of the last successful account logon. <br> The default SSH configuration enables print of the date and time of the last login. The appropriate configu...Rule Medium Severity -
Set SSH Daemon LogLevel to VERBOSE
The <code>VERBOSE</code> parameter configures the SSH daemon to record login and logout activity. To specify the log level in SSH, add or correct the following line in <code>/etc/ssh/sshd_config<...Rule Medium Severity -
Set SSH authentication attempt limit
The <code>MaxAuthTries</code> parameter specifies the maximum number of authentication attempts permitted per connection. Once the number of failures reaches half this value, additional failures ar...Rule Medium Severity -
Use Only Strong Ciphers
Limit the ciphers to strong algorithms. Counter (CTR) mode is also preferred over cipher-block chaining (CBC) mode. The following line in <code>/etc/ssh/sshd_config</code> demonstrates use of those...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 certain types of security-relevant events such as s...Group -
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 disk. The <code>auditd</code> service can be ena...Rule Medium Severity -
Configure auditd Data Retention
The audit system writes data to <code>/var/log/audit/audit.log</code>. By default, <code>auditd</code> rotates 5 logs by size (6MB), retaining a maximum of 30MB of data in total, and refuses to wri...Group -
Configure auditd space_left on Low Disk Space
The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Edit the file <code>/etc/audit/auditd.conf</code>. A...Rule Medium Severity
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Modules