Nasreddine Bencherchali
7364ce00b1
fix: Azure Active Directory Hybrid Health AD FS New Server - Update Logsource to align with the rest of the azure rules fix: Azure Active Directory Hybrid Health AD FS Service Delete - Update Logsource to align with the rest of the azure rules fix: Number Of Resource Creation Or Deployment Activities - Update Logsource to align with the rest of the azure rules fix: Granting Of Permissions To An Account - Update Logsource to align with the rest of the azure rules fix: Rare Subscription-level Operations In Azure - Update Logsource to align with the rest of the azure rules fix: Google Workspace Application Removed - Update logsource product field to `gcp` fix: Google Workspace Granted Domain API Access - Update logsource product field to `gcp` fix: Google Workspace MFA Disabled - Update logsource product field to `gcp` fix: Google Workspace Role Modified or Deleted - Update logsource product field to `gcp` fix: Google Workspace Role Privilege Deleted - Update logsource product field to `gcp` fix: Google Workspace User Granted Admin Privileges - Update logsource product field to `gcp`
26 lines
1.2 KiB
YAML
26 lines
1.2 KiB
YAML
title: AWS Attached Malicious Lambda Layer
|
|
id: 97fbabf8-8e1b-47a2-b7d5-a418d2b95e3d
|
|
status: test
|
|
description: |
|
|
Detects when an user attached a Lambda layer to an existing function to override a library that is in use by the function, where their malicious code could utilize the function's IAM role for AWS API calls.
|
|
This would give an adversary access to the privileges associated with the Lambda service role that is attached to that function.
|
|
references:
|
|
- https://docs.aws.amazon.com/lambda/latest/dg/API_UpdateFunctionConfiguration.html
|
|
author: Austin Songer
|
|
date: 2021/09/23
|
|
modified: 2022/10/09
|
|
tags:
|
|
- attack.privilege_escalation
|
|
logsource:
|
|
product: aws
|
|
service: cloudtrail
|
|
detection:
|
|
selection:
|
|
eventSource: lambda.amazonaws.com
|
|
eventName|startswith: 'UpdateFunctionConfiguration'
|
|
condition: selection
|
|
falsepositives:
|
|
- Lambda Layer being attached may be performed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
|
|
- Lambda Layer being attached from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
|
|
level: medium
|