Severity Framework
CCSS (Common Configuration Scoring System) is a set of measures used to determine the severity of the rule.
Snyk CCSS
Rule category
Each rule is associated with a high-level category. For example IAM, Container, Monitoring, Logging, Network, etc.
Network/ Public Access
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CIS-ControlsCSA-CCMISO-27001NIST-800-53PCI-DSSSOC-2
- Snyk IDSNYK-CC-00458
- creditSnyk Research Team
Description
Inbound traffic is allowed to a resource from any source instead of a restricted range and potentially everyone can access your resource.
How to fix?
Set properties.access to Deny or properties.sourceAddressPrefixto specific IP range only, e.g.192.168.1.0/24`.
Set access to Deny, or source_address_prefix to specific CIDR block range only, e.g. 192.168.1.0/24.
Example Configuration
resource "azurerm_network_security_rule" "allowed" {
name = "test123"
priority = 100
direction = "Inbound"
access = "Allow"
protocol = "Tcp"
source_port_range = "*"
destination_port_range = "*"
source_address_prefix = "192.168.1.0/24"
destination_address_prefix = "*"
resource_group_name = azurerm_resource_group.example.name
network_security_group_name = "test"
}