Netflix

A low-privilege user with a freshly-provisioned SSO account in Netflix's Lemur certificate management service (versions <= 1.9.0) can exploit a Server-Side Request Forgery (SSRF) vulnerability in the ACME authority creation endpoint to reach the AWS EC2 Instance Metadata Service (IMDS), exfiltrating AWS STS credentials, and leveraging a creator-equality Insecure Direct Object Reference (IDOR) vulnerability for permanent access to PKI private keys, resulting in AWS IAM compromise and persistent certificate access.

Lemur versions before 1.9.0 are vulnerable to LDAP filter injection, where an authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership queries and escalate their privileges to administrator.