AWS Bedrock Detected Multiple Attempts to use Denied Models by a Single Useredit
Identifies multiple successive failed attempts to use denied model resources within AWS Bedrock. This could indicated attempts to bypass limitations of other approved models, or to force an impact on the environment by incurring exhorbitant costs.
Rule type: esql
Rule indices: None
Severity: high
Risk score: 73
Runs every: 10m
Searches indices from: now-60m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Domain: LLM
- Data Source: AWS Bedrock
- Data Source: AWS S3
- Resources: Investigation Guide
- Use Case: Policy Violation
- Mitre Atlas: T0015
- Mitre Atlas: T0034
Version: 1
Rule authors:
- Elastic
Rule license: Elastic License v2
Setupedit
Setup
This rule requires that guardrails are configured in AWS Bedrock. For more information, see the AWS Bedrock documentation:
https://docs.aws.amazon.com/bedrock/latest/userguide/guardrails-create.html
Rule queryedit
from logs-aws_bedrock.invocation-* | where gen_ai.response.error_code == "AccessDeniedException" | stats total_denials = count(*) by user.id, gen_ai.request.model.id, cloud.account.id | where total_denials > 3 | sort total_denials desc