mirror of
https://github.com/projectdiscovery/nuclei-templates.git
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63 lines
1.9 KiB
YAML
63 lines
1.9 KiB
YAML
id: unrestricted-ssh-access
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info:
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name: Unrestricted - SSH Access
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author: DhiyaneshDK
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severity: high
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description: |
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Unrestricted SSH access allows anyone on the internet to attempt connections to your instance over port 22, posing a risk of brute force attacks, unauthorized access, and exploitation of SSH vulnerabilities. Limiting access to trusted IPs is essential to secure your instance.
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reference:
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- https://www.trendmicro.com/cloudoneconformity/knowledge-base/alibaba-cloud/AlibabaCloud-ECS/unrestricted-ssh-access.html
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- https://www.alibabacloud.com/help/en/ecs/use-cases/best-practices-of-the-security-group
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metadata:
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max-request: 1
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verified: true
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tags: cloud,devops,aliyun,alibaba,alibaba-cloud-config,ecs
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variables:
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region: "cn-hangzhou"
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flow: |
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code(1)
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for(let SecurityGroupId of iterate(template.securitygroup)){
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set("securitygroup", SecurityGroupId)
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code(2)
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}
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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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aliyun ecs DescribeSecurityGroups --RegionId $region
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extractors:
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- type: json
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name: securitygroup
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internal: true
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json:
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- '.SecurityGroups.SecurityGroup[].SecurityGroupId'
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- engine:
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- sh
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- bash
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source: |
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aliyun ecs DescribeSecurityGroupAttribute --SecurityGroupId "$securitygroup" --Direction ingress --RegionId $region
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matchers-condition: and
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matchers:
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- type: word
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part: body
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words:
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- '"IpProtocol": "TCP"'
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- '"PortRange": "22/22"'
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- '"SourceCidrIp": "0.0.0.0/0"'
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condition: and
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extractors:
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- type: dsl
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dsl:
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- 'securitygroup + " contains Unrestricted SSH Access"'
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# digest: 490a0046304402202e339cb93aa8335e5ff03f213f08088dabf4a5a13fac0966a611e1f997286afd022069619c73d1d9c73d9b218d18002c77e97eea9b24132fc58195db2a4d1f581fc8:922c64590222798bb761d5b6d8e72950 |