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splunk-security_content/detections/endpoint/linux_docker_privilege_escalation.yml
2022-08-26 10:46:51 -05:00

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2.9 KiB
YAML

name: Linux Docker Privilege Escalation
id: 2e7bfb78-85f6-47b5-bc2f-15813a4ef2b3
version: 1
date: '2022-07-31'
author: Gowthamaraj Rajendran, Splunk
type: Anomaly
datamodel:
- Endpoint
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.
search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
as lastTime from datamodel=Endpoint.Processes where Processes.process IN("*docker*-v*/*:*","*docker*--volume*/*:*") OR Processes.process IN("*docker*exec*sh*","*docker*exec*bash*") by Processes.dest Processes.user Processes.parent_process_name
Processes.process_name Processes.process Processes.process_id Processes.parent_process_id
Processes.process_guid | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)` | `linux_docker_privilege_escalation_filter`'
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
cis20:
- CIS 3
- CIS 5
- CIS 16
confidence: 50
context:
- Source:Endpoint
- Stage:Privilege Escalation
dataset:
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1548/docker/sysmon_linux.log
impact: 10
kill_chain_phases:
- Exploitation
message: An instance of $parent_process_name$ spawning $process_name$ was identified on endpoint $dest$
mitre_attack_id:
- T1548.003
- T1548
nist:
- DE.CM
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
required_fields:
- _time
- Processes.dest
- Processes.user
- Processes.parent_process_name
- Processes.process_name
- Processes.process
- Processes.process_id
- Processes.parent_process_id
risk_score: 5
security_domain: endpoint