Execution: Container Escape

This document describes a threat finding type in Security Command Center. Threat findings are generated by threat detectors when they detect a potential threat in your cloud resources. For a full list of available threat findings, see Threat findings index.

Overview

A known suspicious tool binary for container escape activities was executed. This indicates a possible container escape attempt, where a process inside the container tries to break out of its isolation and interact with the host system or other containers. This is a high-severity finding, because it suggests that an attacker might be attempting to gain access beyond the container's boundaries, potentially compromising the host or other infrastructure. Container escapes can result from misconfigurations, vulnerabilities in container runtimes, or exploitation of privileged containers.

Detection service

Cloud Run Threat Detection

How to respond

To respond to this finding, do the following:

Review finding details

1. Open the Execution: Container Escape finding as directed in Reviewing findings. Review the details on the Summary and JSON tabs.

2. On the Summary tab, review the information in the following sections:

   • What was detected, especially the following fields:
     • Program binary: the absolute path of the executed binary
     • Arguments: the arguments passed during binary execution
   • Affected resource, especially the following fields:
     • Resource full name: the full resource name of the affected Cloud Run resource

3. On the JSON tab, note the following fields:

   • resource:
     • project_display_name: the name of the project that contains the cluster.
   • finding:
     • processes:
     • binary:
       • path: the full path of the executed binary.
     • args: the arguments that were provided while executing the binary.

4. Identify other findings that occurred at a similar time for the affected container. Related findings might indicate that this activity was malicious, instead of a failure to follow best practices.

5. Review the settings of the affected container.

6. Check the logs for the affected container.

Research attack and response methods

1. Review MITRE ATT&CK framework entry for this finding type: Escape to Host.
2. To develop a response plan, combine your investigation results with MITRE research.

Implement your response

For response recommendations, see Respond to Cloud Run threat findings.

What's next

• Learn how to work with threat findings in Security Command Center.
• Refer to the Threat findings index.
• Learn how to review a finding through the Google Cloud console.
• Learn about the services that generate threat findings.