Listen to this Post
Intro: How the CVE Works
The vulnerability resides in the `AccountFoundation` module of `@hulumi/baseline` versions prior to 1.4.0. This module is designed to manage AWS detective services, including GuardDuty for threat detection and Security Hub for compliance monitoring. It offers two operational modes: creating these services from scratch, or reusing existing ones via opt-in flags. The critical flaw is in the “reuse” path, where the module fails to validate the health and configuration of the pre-existing services, leading to a false sense of security and potential operational disruption.
In the case of GuardDuty reuse, the code would import an existing detector and output a `guardDutyDetectorId` as a signal of success. However, it never checks the detector’s status. An existing detector might be suspended (ENABLED state is false), or configured with a slower finding publishing cadence (e.g., 6 hours) instead of the baseline 15-minute interval. The deployment would complete successfully, misleadingly reporting that the GuardDuty baseline is active when it is not, leaving the environment under-protected.
For Security Hub reuse, the issue is related to resource lifecycle management. When reusing an existing account, Hulumi would create `StandardsSubscription` resources for CIS or NIST benchmarks with default deletion behavior. Because Pulumi (the underlying infrastructure-as-code tool) treats these subscriptions as its own managed resources, a standard `pulumi destroy` operation would trigger a `BatchDisableStandards` API call. This would unsubscribe the account from compliance monitoring, even if those subscriptions were present and active before Hulumi was ever introduced. This is a classic state management failure, where the tool incorrectly assumes ownership of pre-existing resources and modifies them destructively during a routine teardown.
Together, these two issues constitute a Protection Mechanism Failure (CWE-693), as the software fails to provide an expected security control or misrepresents its effectiveness. The impact is operational: organizations would believe their detective controls are active and correctly configured, when they may be disabled or ineffective, or they might inadvertently lose compliance monitoring capabilities.
DailyCVE Form:
Platform: @hulumi/baseline
Version: < 1.4.0
Vulnerability: Protection Mechanism Failure
Severity: Medium
date: 2026-06-10
Prediction: 2026-07-10
What Undercode Say:
Check GuardDuty detector status and configuration aws guardduty list-detectors aws guardduty get-detector --detector-id <DETECTOR_ID> Desired status: ENABLED, FindingPublishingFrequency: FIFTEEN_MINUTES Check Security Hub subscriptions aws securityhub get-enabled-standards To check if Hulumi created subscriptions with RetainOnDelete=true pulumi state unprotect --all
Exploit:
- For GuardDuty: Reuse an existing detector that is suspended or has suboptimal configuration. The deployment will succeed and output a detector ID, falsely indicating a secure state.
- For Security Hub: Deploy the stack against an account with pre-existing CIS/NIST subscriptions, then run
pulumi destroy. The stack deletion will disable the standards, removing compliance monitoring.
Protection:
- Upgrade to `@hulumi/[email protected]` immediately.
- If upgrade is impossible, avoid reusing detective services; manually verify all GuardDuty and Security Hub configurations.
- For existing deployments, use `pulumi state` commands to protect critical Security Hub resources from deletion.
Impact:
- Security Visibility: Organizations may lack active GuardDuty threat detection, leading to undetected malicious activity.
- Compliance Gaps: Accidental disabling of Security Hub standards can cause compliance violations and loss of security dashboards.
- Operational Risk: Routine infrastructure teardown can have destructive consequences on shared security services.
🎯Let’s Practice Exploiting & Learn Patching For Free:
🎓 Live Courses & Certifications:
Join Undercode Academy for Verified Certifications
🚀 Request a Custom Project:
Secure, high-velocity infrastructure and disruptive technological engineering. Contact our engineering team for high-tier development and proprietary systems:
[email protected]
💎 Smart Architecture | 🛡️ Secure by Design | ⭐ Trusted by Thousands
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
