IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
AWS STS Temporary Credentials via AssumeRole
editAWS STS Temporary Credentials via AssumeRole
editIdentifies when a user has assumed a role in AWS Security Token Service (STS). Users can assume a role to obtain temporary credentials and access AWS resources. Adversaries can use this technique for credential access and privilege escalation.
Rule type: new_terms
Rule indices:
- filebeat-*
- logs-aws.cloudtrail-*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: None (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Cloud
- Data Source: AWS
- Data Source: Amazon Web Services
- Data Source: AWS STS
- Use Case: Identity and Access Audit
- Tactic: Privilege Escalation
Version: 208
Rule authors:
- Elastic
- Austin Songer
Rule license: Elastic License v2
Investigation guide
editSetup
editThe AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule query
editevent.dataset:aws.cloudtrail
and event.provider:sts.amazonaws.com
and event.action:AssumeRole*
and event.outcome:success
and user.id:*
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
-
Technique:
- Name: Abuse Elevation Control Mechanism
- ID: T1548
- Reference URL: https://attack.mitre.org/techniques/T1548/
-
Tactic:
- Name: Lateral Movement
- ID: TA0008
- Reference URL: https://attack.mitre.org/tactics/TA0008/
-
Technique:
- Name: Use Alternate Authentication Material
- ID: T1550
- Reference URL: https://attack.mitre.org/techniques/T1550/
-
Sub-technique:
- Name: Application Access Token
- ID: T1550.001
- Reference URL: https://attack.mitre.org/techniques/T1550/001/