2024-04-11 14:23:07 +00:00
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id: ec2-unrestricted-memcached
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info:
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name: Unrestricted Access to Memcached
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author: princechaddha
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severity: critical
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description: |
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Detects unrestricted inbound access to Memcached on Amazon EC2 instances, which can lead to cache poisoning, unauthorized access, and DDoS attacks.
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impact: |
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Unrestricted access increases the risk of cache poisoning, unauthorized data access, and potential DDoS attacks on the Memcached server.
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remediation: |
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Restrict inbound access to Memcached by updating EC2 security group rules to allow only trusted IPs to connect on TCP/UDP port 11211.
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reference:
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- https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-security-groups.html
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tags: cloud,devops,aws,amazon,ec2,aws-cloud-config
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variables:
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region: "us-east-1"
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self-contained: true
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code:
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- engine:
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- sh
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- bash
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source: |
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aws ec2 describe-security-groups --region $region --filters Name=ip-permission.from-port,Values=11211 Name=ip-permission.to-port,Values=11211 Name=ip-permission.cidr,Values='0.0.0.0/0' --output json --query 'SecurityGroups[*].GroupId'
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extractors:
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- type: json
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name: securitygroup
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internal: true
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json:
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- '.[]'
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- type: dsl
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dsl:
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- 'securitygroup + " security group(s) alows unrestricted access (0.0.0.0/0 or ::/0) on TCP port 11211"'
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2024-04-11 14:25:25 +00:00
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# digest: 490a0046304402202b6556d6f2df24efabf60ee89f51b5d4d241a0017dfc7b025c95824cdcc26e290220204a2254be4259786fc50401c47fbb35ad21e621c90cf829f74c56d8297ef644:922c64590222798bb761d5b6d8e72950
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