Ensure install.log Is Retained for 365 or More Days and No Maximum Size

中等級 1自動化macos

說明

macOS writes information pertaining to system-related events to the file /var/log/install.log and has a configurable retention policy for this file. The default logging setting limits the file size of the logs and the maximum size for all logs. The default allows for an errant application to fill the log files and does not enforce sufficient log retention. Audit: Requires ttl >= 365 and no all_max= setting in /etc/asl/com.apple.install.

檢查方式

稽核方法: Shell 指令

shell

f=/etc/asl/com.apple.install
[ -r "$f" ] || exit 1
t=$(/usr/bin/grep -io 'ttl=[0-9]*' "$f" | /usr/bin/head -1 | /usr/bin/cut -d= -f2)
if [ -n "$t" ] && [ "$t" -ge 365 ] && ! /usr/bin/grep -qi 'all_max=' "$f"; then echo compliant; else echo "ttl=${t:-unset}; all_max present or ttl < 365"; fi

預期輸出: compliant

修補方式

修補方法: 操作指南或基礎設施修補檔

Terminal: Edit the /etc/asl/com.apple.install file and add or modify the ttl value to 365 or greater on the file line. Also, remove the all_max= setting and value from the file line.

屬性

作業系統: macos-26
標籤: macoslogging-auditing
參考資料: CIS Apple macOS 26 Tahoe Benchmark v1.1.0 - 3.3 Ensure install.log Is Retained for 365 or More Days and No Maximum Size

檢查此主機

請在您有權稽核的機器上執行此指令。掃描為唯讀操作。

shell

tmaegis scan --target macos