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Overview A frequent and high-risk misconfiguration in Amazon Web Services (AWS) is exposing MongoDB databases directly to the public internet. This often occurs when an EC2 Security Group is configured to allow inbound traffic on TCP port 27017—the default for MongoDB—from any source (0.0.0.0/0 or ::/0). While seemingly a minor oversight, this configuration removes the […]

Overview In the AWS ecosystem, an Elastic IP (EIP) address is a static, public IPv4 address designed for dynamic cloud computing. Unlike the ephemeral public IPs assigned to EC2 instances by default, an EIP is allocated to your account and can be remapped between resources, providing a stable endpoint for high-availability architectures. However, this persistence […]

Overview In a dynamic AWS environment, infrastructure is constantly changing. While teams focus on configuring what traffic is allowed, they often neglect to document why. An AWS Security Group acts as a virtual firewall for resources like EC2 instances, controlling network access. Each rule within that group defines a specific pathway for data. When these […]

Overview In Amazon Web Services (AWS), Security Groups act as the fundamental stateful firewalls for resources like EC2 instances. While they provide essential control over network traffic, they can easily become a source of significant risk if not managed with discipline. The problem isn’t just about security; it’s about complexity. When the number of inbound […]

Overview In any AWS environment, security groups act as the fundamental firewalls for your cloud resources, controlling inbound and outbound traffic at the instance level. While most teams focus on blocking unwanted access from the public internet, a critical and often overlooked risk lies within the internal network. This risk stems from overly permissive rules […]