github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/kubernetes/policies/pss/baseline/8_non_default_proc_masks_set.rego (about)

     1  # METADATA
     2  # title: "Non-default /proc masks set"
     3  # description: "The default /proc masks are set up to reduce attack surface, and should be required."
     4  # scope: package
     5  # schemas:
     6  # - input: schema["kubernetes"]
     7  # related_resources:
     8  # - https://kubernetes.io/docs/concepts/security/pod-security-standards/#baseline
     9  # custom:
    10  #   id: KSV027
    11  #   avd_id: AVD-KSV-0027
    12  #   severity: MEDIUM
    13  #   short_code: no-custom-proc-mask
    14  #   recommended_action: "Do not set spec.containers[*].securityContext.procMount and spec.initContainers[*].securityContext.procMount."
    15  #   input:
    16  #     selector:
    17  #     - type: kubernetes
    18  package builtin.kubernetes.KSV027
    19  
    20  import data.lib.kubernetes
    21  import data.lib.utils
    22  
    23  default failProcMount = false
    24  
    25  # failProcMountOpts is true if securityContext.procMount is set in any container
    26  failProcMountOpts[container] {
    27  	container := kubernetes.containers[_]
    28  	utils.has_key(container.securityContext, "procMount")
    29  }
    30  
    31  deny[res] {
    32  	output := failProcMountOpts[_]
    33  	msg := kubernetes.format(sprintf("%s '%s' should not set 'spec.containers[*].securityContext.procMount' or 'spec.initContainers[*].securityContext.procMount'", [kubernetes.kind, kubernetes.name]))
    34  	res := result.new(msg, output)
    35  }