mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Gowthamaraj rajendran
81 lines
3.2 KiB
YAML
81 lines
3.2 KiB
YAML
name: Linux Sqlite3 Privilege Escalation
|
|
id: ab75dbb7-c3ba-4689-9c1b-8d2717bdcba1
|
|
version: 1
|
|
date: '2022-08-11'
|
|
author: Gowthamaraj Rajendran, Splunk
|
|
status: production
|
|
type: Anomaly
|
|
description: sqlite3 is a terminal-based front-end to the SQLite library that can
|
|
evaluate queries interactively and display the results in multiple formats. sqlite3
|
|
can also be used within shell scripts and other applications to provide batch processing
|
|
features. If sudo right is given to this application 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: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
|
|
as lastTime from datamodel=Endpoint.Processes where Processes.process="*sqlite3*"
|
|
AND Processes.process="*.shell*" AND Processes.process="*sudo*" 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_sqlite3_privilege_escalation_filter`'
|
|
how_to_implement: The detection is based on data that originates from Endpoint Detection
|
|
and Response (EDR) agents. These agents are designed to provide security-related
|
|
telemetry from the endpoints where the agent is installed. To implement this search,
|
|
you must ingest logs that contain the process GUID, process name, and parent process.
|
|
Additionally, you must ingest complete command-line executions. These logs must
|
|
be processed using the appropriate Splunk Technology Add-ons that are specific to
|
|
the EDR product. The logs must also be mapped to the `Processes` node of the `Endpoint`
|
|
data model. Use the Splunk Common Information Model (CIM) to normalize the field
|
|
names and speed up the data modeling process.
|
|
known_false_positives: False positives may be present, filter as needed.
|
|
references:
|
|
- https://gtfobins.github.io/gtfobins/sqlite3/
|
|
- https://manpages.ubuntu.com/manpages/trusty/en/man1/sqlite3.1.html
|
|
tags:
|
|
analytic_story:
|
|
- Linux Privilege Escalation
|
|
- Linux Living Off The Land
|
|
asset_type: Endpoint
|
|
confidence: 50
|
|
impact: 60
|
|
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
|
|
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: 30
|
|
security_domain: endpoint
|
|
tests:
|
|
- name: True Positive Test
|
|
attack_data:
|
|
- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1548/sqlite3/sysmon_linux.log
|
|
source: Syslog:Linux-Sysmon/Operational
|
|
sourcetype: sysmon_linux
|
|
update_timestamp: true
|