Ensure that new entries are appended to the end of the log file

LowLevel 2Automatedmongodb

Description

By default, new log entries will overwrite old entries after a restart of the mongod or Mongols service. Enabling the systemLog.logAppend setting causes new entries to be appended to the end of the log file rather than overwriting the existing content of the log when the mongos or mongod instance restarts. Checks the YAML config file /etc/mongod.conf (SKIP when it does not exist).

How it is checked

Audit method: File pattern

File: /etc/mongod.conf
Pattern: (?m)^[ \t]*logAppend:[ \t]*['\x22]?true\b

How it is fixed

Fix method: Guidance or infrastructure patch

Set systemLog.logAppend: true in /etc/mongod.conf and restart mongod.

Properties

Operating systems: Any
Tags: mongodblogging
Reference: CIS MongoDB 8 Benchmark v2.0.0 - 5.4 Ensure that new entries are appended to the end of the log file

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target mongodb --level 2