37 lines
1.5 KiB
YAML
37 lines
1.5 KiB
YAML
id: ec2-unrestricted-ftp
|
|
info:
|
|
name: Restrict EC2 FTP Access
|
|
author: princechaddha
|
|
severity: critical
|
|
description: |
|
|
Ensure Amazon EC2 security groups disallow unrestricted inbound FTP access on TCP ports 20 and 21 to prevent brute force attacks.
|
|
impact: |
|
|
Unrestricted FTP access can expose EC2 instances to unauthorized access and brute force attacks, compromising security.
|
|
remediation: |
|
|
Restrict inbound access on TCP ports 20 and 21 for EC2 security groups to known IPs or remove the rules if FTP is not required.
|
|
reference:
|
|
- https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-network-security.html#security-group-rules
|
|
tags: cloud,devops,aws,amazon,ec2,aws-cloud-config
|
|
|
|
variables:
|
|
region: "us-east-1"
|
|
|
|
self-contained: true
|
|
code:
|
|
- engine:
|
|
- sh
|
|
- bash
|
|
source: |
|
|
aws ec2 describe-security-groups --region $region --filters Name=ip-permission.from-port,Values=20,21 Name=ip-permission.to-port,Values=20,21 Name=ip-permission.cidr,Values='0.0.0.0/0' --output json --query 'SecurityGroups[*].GroupId'
|
|
|
|
extractors:
|
|
- type: json
|
|
name: securitygroup
|
|
internal: true
|
|
json:
|
|
- '.[]'
|
|
|
|
- type: dsl
|
|
dsl:
|
|
- 'securitygroup + " security group(s) alows unrestricted access (0.0.0.0/0 or ::/0) on TCP port 20 or 21"'
|
|
# digest: 4a0a0047304502205f388ef25cd4e10ea8b0ca947a8100c1b849e7503e01c6485d3d23c30e190d16022100a24ea5679098a9da74b661c8375a32c2e91cb9e9e82682ffdd981cc1b1c78e79:922c64590222798bb761d5b6d8e72950 |