Master authorized networks feature is disabled Affecting Cloud Storage service in Google
CCSS (Common Configuration Scoring System) is a set of measures used to determine the severity of the rule.
Each rule is associated with a high-level category. For example IAM, Container, Monitoring, Logging, Network, etc.
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- creditSnyk Research Team
Description
Enabling the Master Authorized Networks feature restricts Kubernetes API server access to a set of CIDR ranges, mitigating unauthorized access risks. Without this, any IP can potentially access the API server, increasing the attack surface. Restricting access based on Source IP ensures that only traffic from designated networks can reach the API server, enhancing the security posture by limiting potential entry points for attackers.
How to fix?
Configure the master_authorized_networks_config block in a google_container_cluster resource.
Example Configuration
resource "google_container_cluster" "allowed" {
name = "snyk-788-cluster"
location = "us-central1"
deletion_protection = false
remove_default_node_pool = true
initial_node_count = 1
master_authorized_networks_config {
cidr_blocks {
cidr_block = "192.168.7.0/28"
display_name = "cidr_1st"
}
}
}