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ONTAPのアップグレード後、EMSのバグ1524672が修正されたauditlog.change.detectedが表示される

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環境

修正を含む9.12.1以降へのONTAPアップグレードバグ1524672/CONTAPの-

問題

  • バグ1524672の修正を含むバージョンへのONTAPアップグレード後
  • 以前にローテーションされたaudit.logの日次auditlog.change.detected イベントが、クラスタ内の1つのノードだけが00:05(ローカル時間)に報告されます。<nnn>:

Mon Jun 17 00:05:00 +0900 [Node-01: mgwd: auditlog.change.detected:error]: Audit log file "audit.log.0000001562" was tampered with.
Mon Jun 18 00:05:36 +0900 [Node-01: mgwd: auditlog.change.detected:error]: Audit log file "audit.log.0000001563" was tampered with.
Mon Jun 19 00:05:44 +0900 [Node-01: mgwd: auditlog.change.detected:error]: Audit log file "audit.log.0000001564" was tampered with.
...

  • mgwd.logでは、audit.log.lun <nnn>ファイルに対して次のエラーメッセージが表示されます。

00000025.000bea70 01e5bc7a Fri Jul 26 2024 00:05:00 -04:00 [kern_mgwd:info:3205] 0x8318d7b00: 8603e9000000012a: ERR: tables::audit: Audit log signature file /mroot/etc/log/mlog/audit_log_sig/audit.log.0000001562.sig is empty.Hence, Signature verification failed for file: audit.log.0000001562. Line: 1398, Function: verify_hashes ...

  • イベントで指定されたaudit.log.xxxファイルのファイルサイズがすべて350バイトを超えています。システムシェルを使用したディレクトリのリスト:

% ls -lh /mroot/etc/log/mlog/audit.log*
-rw-r--r--  2 root  wheel    70M Jun 18 10:03 /mroot/etc/log/mlog/audit.log
-rw-r--r--  1 root  wheel    76M May  1 14:17 /mroot/etc/log/mlog/audit.log.0000001562
-rw-r--r--  1 root  wheel    72M May  2 14:17 /mroot/etc/log/mlog/audit.log.0000001563
-rw-r--r--  1 root  wheel    72M May  3 14:17 /mroot/etc/log/mlog/audit.log.0000001564

 

 

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