Развертывание контейнера
Adversaries may deploy a container into an environment to facilitate execution or evade defenses. In some cases, adversaries may deploy a new container to execute processes associated with a particular image or deployment, such as processes that execute or download malware. In others, an adversary may deploy a new container configured without network rules, user limitations, etc. to bypass existing defenses within the environment. In Kubernetes environments, an adversary may attempt to deploy a privileged or vulnerable container into a specific node in order to Escape to Host and access other containers running on the node. (Citation: AppSecco Kubernetes Namespace Breakout 2020)
Containers can be deployed by various means, such as via Docker's create and start APIs or via a web application such as the Kubernetes dashboard or Kubeflow. (Citation: Docker Containers API)(Citation: Kubernetes Dashboard)(Citation: Kubeflow Pipelines) In Kubernetes environments, containers may be deployed through workloads such as ReplicaSets or DaemonSets, which can allow containers to be deployed across multiple nodes.(Citation: Kubernetes Workload Management) Adversaries may deploy containers based on retrieved or built malicious images or from benign images that download and execute malicious payloads at runtime.(Citation: Aqua Build Images on Hosts)
Примеры процедур |
|
| Название | Описание |
|---|---|
| Kinsing |
Kinsing was run through a deployed Ubuntu container.(Citation: Aqua Kinsing April 2020) |
| TeamTNT |
TeamTNT has deployed different types of containers into victim environments to facilitate execution.(Citation: Intezer TeamTNT September 2020)(Citation: Trend Micro TeamTNT) TeamTNT has also transferred cryptocurrency mining software to Kubernetes clusters discovered within local IP address ranges.(Citation: Cisco Talos Intelligence Group) |
| Peirates |
Peirates can deploy a pod that mounts its node’s root file system, then execute a command to create a reverse shell on the node.(Citation: Peirates GitHub) |
| Doki |
Doki was run through a deployed container.(Citation: Intezer Doki July 20) |
Контрмеры |
|
| Контрмера | Описание |
|---|---|
| User Account Management |
Manage the creation, modification, use, and permissions associated to user accounts. |
| Audit |
Perform audits or scans of systems, permissions, insecure software, insecure configurations, etc. to identify potential weaknesses. |
| Network Segmentation |
Architect sections of the network to isolate critical systems, functions, or resources. Use physical and logical segmentation to prevent access to potentially sensitive systems and information. Use a DMZ to contain any internet-facing services that should not be exposed from the internal network. Configure separate virtual private cloud (VPC) instances to isolate critical cloud systems. |
| Limit Access to Resource Over Network |
Prevent access to file shares, remote access to systems, unnecessary services. Mechanisms to limit access may include use of network concentrators, RDP gateways, etc. |
Обнаружение
Monitor for suspicious or unknown container images and pods in your environment. Deploy logging agents on Kubernetes nodes and retrieve logs from sidecar proxies for application pods to detect malicious activity at the cluster level. In Docker, the daemon log provides insight into remote API calls, including those that deploy containers. Logs for management services or applications used to deploy containers other than the native technologies themselves should also be monitored.
Ссылки
- The Kubernetes Authors. (n.d.). Kubernetes Web UI (Dashboard). Retrieved March 29, 2021.
- The Kubeflow Authors. (n.d.). Overview of Kubeflow Pipelines. Retrieved March 29, 2021.
- Kubernetes. (n.d.). Workload Management. Retrieved March 28, 2024.
- Docker. (n.d.). Docker Engine API v1.41 Reference - Container. Retrieved March 29, 2021.
- Assaf Morag. (2020, July 15). Threat Alert: Attackers Building Malicious Images on Your Hosts. Retrieved March 29, 2021.
- Abhisek Datta. (2020, March 18). Kubernetes Namespace Breakout using Insecure Host Path Volume — Part 1. Retrieved January 16, 2024.
- Singer, G. (2020, April 3). Threat Alert: Kinsing Malware Attacks Targeting Container Environments. Retrieved April 1, 2021.
- Kubernetes. (n.d.). Role Based Access Control Good Practices. Retrieved March 8, 2023.
- Fishbein, N. (2020, September 8). Attackers Abusing Legitimate Cloud Monitoring Tools to Conduct Cyber Attacks. Retrieved September 22, 2021.
- Fiser, D. Oliveira, A. (n.d.). Tracking the Activities of TeamTNT A Closer Look at a Cloud-Focused Malicious Actor Group. Retrieved September 22, 2021.
- Darin Smith. (2022, April 21). TeamTNT targeting AWS, Alibaba. Retrieved August 4, 2022.
- National Security Agency, Cybersecurity and Infrastructure Security Agency. (2022, March). Kubernetes Hardening Guide. Retrieved April 1, 2022.
- InGuardians. (2022, January 5). Peirates GitHub. Retrieved February 8, 2022.
- Fishbein, N., Kajiloti, M.. (2020, July 28). Watch Your Containers: Doki Infecting Docker Servers in the Cloud. Retrieved March 30, 2021.
- The Kubernetes Authors. (n.d.). Controlling Access to The Kubernetes API. Retrieved March 29, 2021.
- Microsoft. (2023, February 27). AKS-managed Azure Active Directory integration. Retrieved March 8, 2023.
- Kubernetes. (n.d.). Overview of Cloud Native Security. Retrieved March 8, 2023.
- Docker. (n.d.). Protect the Docker Daemon Socket. Retrieved March 29, 2021.
Связанные риски
Каталоги
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