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modules/recon/docker-api-exposure.yaml flags an unauthenticated Docker Engine api, keyed on the api version paired with the minimum api version that a generic version endpoint does not carry, then extracts the engine version. modules/recon/kubernetes-api-exposure.yaml flags an internet reachable Kubernetes api server through its anonymous version endpoint, keyed on the git version paired with a build field, then extracts the version. modules/recon/kubelet-api-exposure.yaml flags an exposed kubelet whose pod list leaks the cluster workload, keyed on the PodList kind paired with an api version, then extracts a pod namespace. internal/modules/runtime_api_exposure_test.go drives the three modules end to end through ExecuteHTTPModule and asserts the leak alongside the near misses a strict review wants pinned: a generic version response, each service with one keying field missing, a service list that is not a pod list, a plain 200 and a 404. verify: go test ./internal/modules, each matcher and extractor proven to bite (break -> red, restore -> green).
43 lines
807 B
YAML
43 lines
807 B
YAML
# Kubernetes API Server Exposure Detection Module
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id: kubernetes-api-exposure
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info:
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name: Kubernetes API Server Exposure
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author: sif
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severity: medium
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description: Detects an internet reachable Kubernetes api server through its anonymous version endpoint
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tags: [kubernetes, k8s, api, exposure, recon]
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type: http
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http:
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method: GET
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paths:
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- "{{BaseURL}}/version"
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matchers:
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- type: status
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status:
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- 200
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- type: word
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part: body
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words:
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- "\"gitVersion\""
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- type: word
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part: body
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condition: or
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words:
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- "\"gitTreeState\""
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- "\"buildDate\""
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- "\"compiler\""
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extractors:
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- type: regex
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name: k8s_version
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part: body
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regex:
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- '"gitVersion"\s*:\s*"([^"]+)"'
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group: 1
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