CWE-1327

Binding to an Unrestricted IP Address

Weakness Description

The product assigns the address 0.0.0.0 for a database server, a cloud service/instance, or any computing resource that communicates remotely.

When a server binds to the address 0.0.0.0, it allows connections from every IP address on the local machine, effectively exposing the server to every possible network. This might be much broader access than intended by the developer or administrator, who might only be expecting the server to be reachable from a single interface/network.

Potential Mitigations

System Configuration

Assign IP addresses that are not 0.0.0.0.

Effectiveness: High

System Configuration

Unwanted connections to the configured server may be denied through a firewall or other packet filtering measures.

Effectiveness: High

Common Consequences

Availability
DoS: Amplification
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