Security Group Open Port 22
This page targets the check ec2.security_group_open_22 and the query
"security group open port 22" so teams can move from search to remediation quickly. Instead of broad
guidance, this page focuses on what the finding means in real operations, why it changes risk posture, and
the fastest path to a verified fix.
Posturio is built for practical cloud security operations. You can run a scan, confirm whether this issue exists in your environment, and prioritize remediation with clear context and ownership. The goal is not a static checklist; it is a repeatable process that improves your posture over time.
Check metadata
Understanding the finding in operational terms
One or more security groups permit inbound SSH (port 22) from untrusted ranges. In practice, this finding usually appears when baseline controls are implemented inconsistently across accounts, workloads, or teams. It can remain hidden for long periods because infrastructure drift happens gradually and ownership is often split between platform and application groups.
Treat this check as a control signal, not just a point-in-time warning. If the same issue appears after every deployment cycle, you likely need stronger preventive guardrails in infrastructure-as-code and review pipelines. Fast remediation is important, but durable prevention is what protects engineering velocity.
Risk impact and business implications
Security impact
Open SSH paths are common attack targets and can lead to credential abuse or host compromise. Findings in this category often sit on critical attack paths, so delayed remediation can compound risk.
Operational impact
Unresolved controls increase incident response load and create repeated triage work for the same root cause. Teams lose time on reactive cleanup instead of planned hardening.
Trust impact
Customers, auditors, and procurement teams increasingly ask for concrete evidence around cloud controls. Fixing and verifying this issue improves both security outcomes and external trust conversations.
Remediation steps for Security Group Open Port 22
- Locate security groups allowing TCP 22 from 0.0.0.0/0 or broad CIDRs.
- Restrict SSH to known admin IPs, bastion hosts, or zero-trust access paths.
- Replace direct SSH with SSM Session Manager where possible.
- Remove unused ingress rules after ownership validation.
Verification workflow for reliable closure
- Test administrative access from approved paths only.
- Confirm unauthorized source ranges are blocked.
- Re-run Posturio and verify ec2.security_group_open_22 passes.
Verification should include both direct AWS configuration checks and scan-based confirmation. Combining these two methods catches false assumptions early and gives your team stronger evidence for internal or external reviews.
Security Group Open Port 22 FAQs
Is opening SSH temporarily acceptable?
Only with time-bound controls and explicit owner approval.
Can private subnets still be risky?
Yes, if peering or transit paths expose lateral movement options.
What is the safer long-term alternative?
Managed session-based access with centralized auditing.
How do I verify security group open port 22 is fully remediated?
Re-run your scan and confirm ec2.security_group_open_22 passes, then review AWS configuration directly to validate persistence.