github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/kubernetes/policies/general/attaching_pod_view_logs_realtime.rego (about)

     1  # METADATA
     2  # title: "Do not allow attaching to shell on pods"
     3  # description: "Check whether role permits attaching to shell on pods"
     4  # scope: package
     5  # schemas:
     6  # - input: schema["kubernetes"]
     7  # related_resources:
     8  # - https://kubernetes.io/docs/concepts/security/rbac-good-practices/
     9  # custom:
    10  #   id: KSV054
    11  #   avd_id: AVD-KSV-0054
    12  #   severity: HIGH
    13  #   short_code: no-attaching-shell-pods
    14  #   recommended_action: "Create a role which does not permit attaching to shell on pods"
    15  #   input:
    16  #     selector:
    17  #     - type: kubernetes
    18  package builtin.kubernetes.KSV054
    19  
    20  import data.lib.kubernetes
    21  import data.lib.utils
    22  
    23  readKinds := ["Role", "ClusterRole"]
    24  
    25  attach_shell_on_pod[ruleA] {
    26  	input.kind == readKinds[_]
    27  	some i, j
    28  	ruleA := input.rules[i]
    29  	ruleB := input.rules[j]
    30  	i < j
    31  	ruleA.apiGroups[_] == "*"
    32  	ruleA.resources[_] == "pods/attach"
    33  	ruleA.verbs[_] == "create"
    34  	ruleB.apiGroups[_] == "*"
    35  	ruleB.resources[_] == "pods"
    36  	ruleB.verbs[_] == "get"
    37  }
    38  
    39  deny[res] {
    40  	badRule := attach_shell_on_pod[_]
    41  	msg := "Role permits attaching to shell on pods"
    42  	res := result.new(msg, badRule)
    43  }