Ensure security groups do not allow ingress from 0.0.0.0/0 to port 3389
Security groups should not allow RDP access (port 3389) from the internet. RDP is a frequent target for brute force attacks and exploits.
Security Impact
Open RDP access exposes Windows instances to BlueKeep and other RDP vulnerabilities, as well as credential attacks.
How to Remediate
Remove rules allowing 0.0.0.0/0 or ::/0 to port 3389. Use VPN, bastion hosts, or AWS Systems Manager for Windows access.
Affected Resources
Compliance Frameworks
How TigerGate Helps
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- Drift Detection
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Check Details
- Check ID
- aws-ec2-10
- Service
- Elastic Compute Cloud (EC2)
- Category
- Network Security
- Severity
- HIGH
- CIS Benchmark
- 5.1
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