Skill

analyzing-kubernetes-audit-logs

Parses Kubernetes API server audit logs (JSON lines) to detect exec-into-pod, secret access, RBAC modifications, privileged pod creation, and anonymous API access. Builds threat detection rules for cluster investigations.

Kubernetes

Python

security

infrastructure

npx claudepluginhub mukul975/anthropic-cybersecurity-skills --plugin cybersecurity-skills

Tool Access

This skill uses the workspace's default tool permissions.

Preview

- When investigating security incidents that require analyzing kubernetes audit logs

Supporting Assets

LICENSEreferences/api-reference.mdscripts/agent.py

SKILL.md

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Last CommitApr 6, 2026

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Analyzing Kubernetes Audit Logs

When to Use

When investigating security incidents that require analyzing kubernetes audit logs
When building detection rules or threat hunting queries for this domain
When SOC analysts need structured procedures for this analysis type
When validating security monitoring coverage for related attack techniques

Prerequisites

Familiarity with container security concepts and tools
Access to a test or lab environment for safe execution
Python 3.8+ with required dependencies installed
Appropriate authorization for any testing activities

Instructions

Parse Kubernetes audit log files (JSON lines format) to detect security-relevant events including unauthorized access, privilege escalation, and data exfiltration.

import json

with open("/var/log/kubernetes/audit.log") as f:
    for line in f:
        event = json.loads(line)
        verb = event.get("verb")
        resource = event.get("objectRef", {}).get("resource")
        user = event.get("user", {}).get("username")
        if verb == "create" and resource == "pods/exec":
            print(f"Pod exec by {user}")

Key events to detect:

pods/exec and pods/attach (shell into containers)
secrets access (get/list/watch)
clusterrolebindings creation (RBAC escalation)
Privileged pod creation
Anonymous or system:unauthenticated access

Examples

# Detect secret enumeration
if verb in ("get", "list") and resource == "secrets":
    print(f"Secret access: {user} -> {event['objectRef'].get('name')}")