OCI-010 Oracle Cloud Infrastructure (OCI)

Security lists do not allow unrestricted SSH (22) from 0.0.0.0/0.

Security lists do not allow unrestricted SSH (22) from 0.0.0.0/0.

Domain
Oracle Cloud Infrastructure (OCI)
Area
Networking
Automated / manual
Automated

Risk if it fails

Open SSH invites brute-force.

An SSH port open to the world is constantly attacked by password-guessing bots; one weak credential gives an attacker a shell on your server.

How Tess tests it

1 test — each concludes only on cited evidence.

Security lists do not allow unrestricted SSH (22) from 0.0.0.0/0.

Automated
Procedure
Inspect security lists for ingress 22 from 0.0.0.0/0.

Read-only command 

oci network security-list list --compartment-id <compartment-ocid> --all --query "data[].{name:\"display-name\",rules:\"ingress-security-rules\"}"

More in Oracle Cloud Infrastructure (OCI)

OCI-001 MFA is enforced for all IAM users, especially administrators. OCI-002 Customer secret keys / API keys are rotated regularly (<=90 days). OCI-003 A strong password policy is configured. OCI-004 Membership of the Administrators group is minimal.

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