Network misconfigurationsSecurity group allows ingress predefined blocked ports
Risk Level
Informational (4)
Platform(s)
Compliance Frameworks
- HITRUST ,
- ISO/IEC 27001 ,
- Mitre ATT&CK v12 ,
- New Zealand Information Security Manual ,
- NIST 800-171 ,
- Orca Best Practices ,
- UK Cyber Essentials
Description
An AWS Security Group acts as a virtual firewall for your instances to control inbound and outbound traffic. We identified the security group ""{AwsEc2SecurityGroup}"" ({AwsEc2SecurityGroup.GroupId}) is configured to allow inbound traffic to predefined blocked ports (21,22,135,137-139,445,69) Open ports: [{AwsEc2SecurityGroup.SgIpPermissions.PortRange}].-
Recommended Mitigation
Ensure security groups in your account are not configured to allow inbound traffic to predefined blocked ports (21,22,135,137-139,445,69). More details can be found in <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html" target="_blank" rel="noopener noreferrer">https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html</a>
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