Insufficient Verification of Data Authenticity

Property
Language
Severity
CWE	CWE-345: Insufficient Verification of Data Authenticity
OWASP	A08:2021 - Software and Data Integrity Failures
Confidence Level	Medium
Impact Level	High
Likelihood Level	Low

Description#

The ECR repository allows image tags to be changed after creation, meaning existing images can be silently replaced. Without setting ‘image_tag_mutability’ to ‘IMMUTABLE’, image tags are not protected from being overwritten.

Impact#

If an attacker or unauthorized user can overwrite image tags, they could inject malicious code or replace trusted images with compromised versions. This could lead to code execution, supply chain attacks, or deployment of untrusted containers, putting applications and infrastructure at serious risk.