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51 lines
1.9 KiB
YAML
51 lines
1.9 KiB
YAML
id: metadata-service-alibaba
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# This attack abuses a misconfigured proxy that allows access to the metadata
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# IP or a name which resolves to the IP. A standard proxy request is made to
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# the proxy using the full metadata URL, which the proxy will fulfill to its
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# own metadata service.
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#
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# The proxy may also be vulnerable to host/port enumeration on localhost or
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# inside the private network.
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info:
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name: Alibaba Metadata Service Check
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author: sullo,pwnhxl
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severity: critical
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description: The Alibaba host is configured as a proxy which allows access to the metadata service. This could allow significant access to the host/infrastructure.
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remediation: Disable the proxy or restrict configuration to only allow access to approved hosts/ports. Upgrade to IMDSv2 if possible.
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reference:
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- https://www.alibabacloud.com/help/doc-detail/108460.htm
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- https://blog.projectdiscovery.io/abusing-reverse-proxies-metadata/
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- https://www.mcafee.com/blogs/enterprise/cloud-security/how-an-attacker-could-use-instance-metadata-to-breach-your-app-in-aws/
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
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cvss-score: 9.3
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cwe-id: CWE-441
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metadata:
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max-request: 4
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tags: exposure,config,alibaba,proxy,misconfig,metadata
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http:
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- raw:
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- |+
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GET http://{{hostval}}/{{path}} HTTP/1.1
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Host: {{hostval}}
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payloads:
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hostval:
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- alibaba.oast.pro
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- 100.100.100.200
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path:
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- latest/dynamic/instance-identity/document
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- 2016-01-01/dynamic/instance-identity/document
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attack: clusterbomb
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unsafe: true
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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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- '"serial-number"'
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- '"zone-id":"'
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condition: and
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# digest: 4a0a004730450220059523b4ebfe1800cb6762dc0f16934b1fac3c757366d088e484746112021598022100b09951af6a7248bd926653c13175b92ed6c0214769d0ed4bf44e28c3c97e9563:922c64590222798bb761d5b6d8e72950 |