mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Bhavin Patel
70 lines
2.2 KiB
YAML
70 lines
2.2 KiB
YAML
name: Linux Find Privilege Escalation
|
|
id: 2ff4e0c2-8256-4143-9c07-1e39c7231111
|
|
version: 1
|
|
date: '2022-08-09'
|
|
author: Gowthamaraj Rajendran, Splunk
|
|
status: production
|
|
type: Anomaly
|
|
description: Find is a command-line utility that locates files based on some user-specified
|
|
criteria and either prints the pathname of each matched object or, if another action
|
|
is requested, performs that action on each matched object. If sudo right is given
|
|
to find utility for the user, then the user can run system commands as root and
|
|
possibly get a root shell.
|
|
data_source:
|
|
- Sysmon Event ID 1
|
|
search:
|
|
selection1:
|
|
CommandLine: '*-exec*'
|
|
selection2:
|
|
CommandLine: '*find*'
|
|
selection3:
|
|
CommandLine: '*sudo*'
|
|
condition: selection1 and selection2 and selection3
|
|
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/find/
|
|
- https://en.wikipedia.org/wiki/Find_(Unix)
|
|
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/find/sysmon_linux.log
|
|
source: Syslog:Linux-Sysmon/Operational
|
|
sourcetype: sysmon:linux
|
|
update_timestamp: true
|