Shadow File Modification

No violationsstackroxhighruntime

Processes that indicate attempts to modify shadow files

Rationale: Attempts to change shadow file during runtime in containers is unusual
Remediation: Ensure that the base image used to create the Dockerfile doesn't have shadow utils packaged with it.

CategoriesSystem Modification

Compliance mappingsView coverage →

NIST SP 800-53 rev. 5: SI-4

Generated artifacts

1 of 5 targets supported

shadow-file-modification.yaml

- rule: shadow-file-modification
  desc: Processes that indicate attempts to modify shadow files
  condition: proc.name in ("chage|gpasswd|lastlog|newgrp|sg|adduser|deluser|chpasswd|groupadd|groupdel|addgroup|delgroup|groupmems|groupmod|grpck|grpconv|grpunconv|newusers|pwck|pwconv|pwunconv|useradd|userdel|usermod|vigr|vipw|unix_chkpwd")
  output: Process %proc.name executed by user %user.name (uid=%user.uid) in container %container.id image=%container.image.repository (policy=Shadow File Modification)
  priority: ERROR
  source: syscall
  tags:
    - stackrox-import
    - policy

IR (canonical)

{
  "id": "6e0239e1-f4ca-43d0-ad3f-79ec683db811",
  "name": "Shadow File Modification",
  "description": "Processes that indicate attempts to modify shadow files",
  "rationale": "Attempts to change shadow file during runtime in containers is unusual",
  "remediation": "Ensure that the base image used to create the Dockerfile doesn't have shadow utils packaged with it.",
  "severity": "high",
  "categories": [
    "System Modification"
  ],
  "lifecycle": [
    "runtime"
  ],
  "eventSource": "deployment",
  "scope": [],
  "exclusions": [],
  "enforcement": {
    "failBuild": false
  },
  "expression": {
    "op": "criterion",
    "field": "process-name",
    "values": [
      "chage|gpasswd|lastlog|newgrp|sg|adduser|deluser|chpasswd|groupadd|groupdel|addgroup|delgroup|groupmems|groupmod|grpck|grpconv|grpunconv|newusers|pwck|pwconv|pwunconv|useradd|userdel|usermod|vigr|vipw|unix_chkpwd"
    ],
    "valuesOp": "or",
    "negate": false
  },
  "disabled": true
}

Original StackRox JSON

{
  "id": "6e0239e1-f4ca-43d0-ad3f-79ec683db811",
  "name": "Shadow File Modification",
  "description": "Processes that indicate attempts to modify shadow files",
  "rationale": "Attempts to change shadow file during runtime in containers is unusual",
  "remediation": "Ensure that the base image used to create the Dockerfile doesn't have shadow utils packaged with it.",
  "disabled": true,
  "categories": [
    "System Modification"
  ],
  "lifecycleStages": [
    "RUNTIME"
  ],
  "eventSource": "DEPLOYMENT_EVENT",
  "exclusions": [],
  "scope": [],
  "severity": "HIGH_SEVERITY",
  "enforcementActions": [],
  "policySections": [
    {
      "sectionName": "",
      "policyGroups": [
        {
          "fieldName": "Process Name",
          "booleanOperator": "OR",
          "negate": false,
          "values": [
            {
              "value": "chage|gpasswd|lastlog|newgrp|sg|adduser|deluser|chpasswd|groupadd|groupdel|addgroup|delgroup|groupmems|groupmod|grpck|grpconv|grpunconv|newusers|pwck|pwconv|pwunconv|useradd|userdel|usermod|vigr|vipw|unix_chkpwd"
            }
          ]
        }
      ]
    }
  ],
  "notifiers": [],
  "lastUpdated": null,
  "SORTName": "",
  "SORTLifecycleStage": "",
  "SORTEnforcement": false,
  "policyVersion": "1.1",
  "mitreAttackVectors": [
    {
      "tactic": "TA0003",
      "techniques": [
        "T1098"
      ]
    }
  ],
  "criteriaLocked": true,
  "mitreVectorsLocked": true,
  "isDefault": true,
  "source": "IMPERATIVE"
}