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splunk-security_content/dev/endpoint/linux_docker_privilege_escalation.yml
2024-06-26 14:41:53 +00:00

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YAML

name: Linux Docker Privilege Escalation
id: 2e7bfb78-85f6-47b5-bc2f-15813a4ef2b3
version: 1
date: '2022-07-31'
author: Gowthamaraj Rajendran, Splunk
status: production
type: Anomaly
description: Docker is an open source containerization platform. It helps programmers
to bundle applications into containers, which are standardized executable parts
that include the application source code along with the OS libraries and dependencies
needed to run that code in any setting. The user can add mount the root directory
into a container and edit the /etc/password file to add a super user. This requires
the user to be privileged enough to run docker, i.e. being in the docker group or
being root.
data_source:
- Sysmon Event ID 1
search:
selection1:
CommandLine:
- '*docker*-v*/*:*'
- '*docker*--volume*/*:*'
- '*docker*exec*sh*'
- '*docker*exec*bash*'
condition: selection1
how_to_implement: To successfully implement this search, you need to be ingesting
logs with the process name, parent process, and command-line executions from your
endpoints into the Endpoint datamodel. If you are using Sysmon, you can use the
Add-on for Linux Sysmon from Splunkbase.
known_false_positives: False positives are present based on automated tooling or system
administrative usage. Filter as needed.
references:
- https://gtfobins.github.io/gtfobins/docker/
tags:
analytic_story:
- Linux Privilege Escalation
- Linux Living Off The Land
asset_type: Endpoint
confidence: 50
impact: 10
message: An instance of $parent_process_name$ spawning $process_name$ was identified
on endpoint $dest$
mitre_attack_id:
- T1548.003
- T1548
observable:
- name: dest
type: Hostname
role:
- Victim
- name: parent_process_name
type: Process
role:
- Parent Process
- name: process_name
type: Process
role:
- Child Process
product:
- Splunk Enterprise
- Splunk Enterprise Security
- Splunk Cloud
risk_score: 5
security_domain: endpoint
tests:
- name: True Positive Test
attack_data:
- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1548/docker/sysmon_linux.log
source: Syslog:Linux-Sysmon/Operational
sourcetype: sysmon:linux
update_timestamp: true