MADB-10-002200 - The audit information produced by MariaDB must be protected from unauthorized deletion.

Information

If audit data were to become compromised, then competent forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve.

To ensure the veracity of audit data, the information system and/or the application must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods which will depend upon system architecture and design.

Some commonly employed methods include ensuring log files enjoy the proper file system permissions utilizing file system protections; restricting access; and backing up log data to ensure log data is retained.

Applications providing a user interface to audit data will leverage user permissions and roles identifying the user accessing the data and the corresponding rights the user enjoys to make access decisions regarding the deletion of audit data.

Audit information includes all information (e.g., audit records, audit settings, and audit reports) needed to successfully audit information system activity.

Deletion of database audit data could mask the theft of, or the unauthorized modification of, sensitive data stored in the database.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

If the audit.log file permissions do not comply with organization's standards, change the permissions. Example:

$ chown user:group /path/to/audit.log
$ chmod 660 /path/to/audit.log

If the MariaDB server is configured to use syslog for logging, consult the organization's syslog setting for permissions and ownership of logs with respect to who can modify them.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MariaDB_Enterprise_10-x_V2R1_STIG.zip

Item Details

Category: AUDIT AND ACCOUNTABILITY

References: 800-53|AU-9, CAT|II, CCI|CCI-000164, Rule-ID|SV-253681r960936_rule, STIG-ID|MADB-10-002200, Vuln-ID|V-253681

Plugin: MySQLDB

Control ID: 9a14d794f37f53fcaee6bbc9e84f4ea46e665197f72f1aadbf7bd5825802d612