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Dell PowerFlex v3.6.x Security Configuration Guide

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Incorrect folder permissions on the SVM

The chrony user is used for configuring NTP using the chrony suite. The user has incorrect permissions for folder /var/lib/chrony , which can lead to security vulnerabilities.

About this task

On the SVM, the chrony user's home directory has a permission mode more permissive than 750 (Owner=READ/WRITE/EXECUTE, Group=READ/EXECUTE, Other=NONE). This can allow a malicious user to gain access to user data by escalating privileges. Permission mode for "Other" should always have "READ" and "EXECUTE" disabled. To fix the permission mode:

Steps

  1. Use root login to log into the SVM.
  2. Manually run the following command: chmod 750 /var/lib/chrony

Results

The permission mode for the folder is secure.

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