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splunk-security_content/dev/endpoint/linux_mysql_privilege_escalation.yml
2023-01-20 13:24:15 +01:00

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YAML

name: Linux MySQL Privilege Escalation
id: c0d810f4-230c-44ea-b703-989da02ff145
version: 1
date: '2022-08-09'
author: Gowthamaraj Rajendran, Splunk
status: production
type: Anomaly
description: MySQL is an open-source relational database management system. Its name
is a combination of "My", the name of co-founder Michael Widenius's daughter My,
and "SQL", the abbreviation for Structured Query Language. If sudo right is given
to mysql 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: '*\!**'
selection2:
CommandLine: '*mysql*-e*'
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/mysql/
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
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/mysql/sysmon_linux.log
source: Syslog:Linux-Sysmon/Operational
sourcetype: sysmon_linux
update_timestamp: true