High-confidence secret in CloudFormation stack parameter (NoEcho disabled)

Severity: Critical
Service: Secrets exposure
Check ID: SECRETS_CFN_PARAM_HIGH

What this check finds

A CloudFormation stack parameter with NoEcho=false matches a high-confidence credential pattern. The value is visible in DescribeStacks output, CloudTrail logs, and the AWS Console to any principal with cloudformation:DescribeStacks.

Passing looks like: No secrets in CloudFormation parameters.

How to fix it

Mark the parameter as NoEcho: true in the CloudFormation template and redeploy. For runtime access use dynamic references: {{resolve:secretsmanager:secret-name}} or {{resolve:ssm-secure:param-name}}.

Compliance controls it is evidence for

A failing result counts against these controls in KloudLytics; a passing one is evidence towards them. How compliance mapping works

Compliance controls mapped to High-confidence secret in CloudFormation stack parameter (NoEcho disabled)
Framework	Controls
NIST SP 800-53 Rev5 (Moderate)	IA-5 Authenticator Management
NIST Cybersecurity Framework 2.0	PR.AA-01 Identities and credentials are managed
ISO/IEC 27001:2022 Annex A	A.5.17 Authentication information

Checked on every scan

KloudLytics runs this check each time it scans a connected AWS account, through a read-only role, and lists every affected resource with its region. On Pro and Business a fix is written for the specific resource rather than the general case above. The exact access it needs

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