The docker.socket file should be audited, if applicable

docker

Classification:

compliance

Framework:

cis-docker

Control:

1.2.7

Set up the docker integration.

이 페이지는 아직 영어로 제공되지 않습니다. 번역 작업 중입니다.
현재 번역 프로젝트에 대한 질문이나 피드백이 있으신 경우 언제든지 연락주시기 바랍니다.

Description

Audit docker.socket, if applicable.

Rationale

As well as auditing the Linux file system and system calls, you should also audit the Docker daemon. Because this daemon runs with root privileges, it is very important to audit its activities and usage. Its behavior depends on some key files and directories, including the docker.socket file, which holds various parameters for the Docker daemon, it should be audited.

Audit

  1. Locate the docker.socket file by running:

    systemctl show -p FragmentPath docker.socket

  2. If the file does not exist, this recommendation is not applicable. If the docker.socket file exists, verify that there is an audit rule corresponding to the docker.socket file by running:

    auditctl -l | grep docker.socket

Remediation

If the file exists, you should add a rule for it. For example, add the following line to a new file in /etc/audit/rules.d/. For instance, create a file named docker.rules:

echo "-w /usr/lib/systemd/system/docker.socket -k docker" > /etc/audit/rules.d/docker.rules

Then, reload the audit rules:

augenrules --load

Next, restart the audit daemon using the following command:

service auditd restart

Impact

Auditing can generate large log files. You should ensure that these are rotated and archived periodically. A separate partition should also be created for audit logs to avoid filling up any other critical partition.

Default value

By default, Docker-related files and directories are not audited. The file docker.socket may not be present, but if it is, it should be audited.

References

  1. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Security_Guide/chap-system_auditing.html

CIS controls

Version 6.14.6 Enforce Detailed Audit Logging For Sensitive Information - Enforce detailed audit logging for access to nonpublic data and special authentication for sensitive data.

Version 7.14.9 Enforce Detail Logging for Access or Changes to Sensitive Data - Enforce detailed audit logging for access to sensitive data or changes to sensitive data (utilizing tools such as File Integrity Monitoring or Security Information and Event Monitoring).