k8s-rbac-abuse
Kubernetes RBAC privilege escalation paths — ClusterRole/Role enumeration via `kubectl auth can-i --list`, abuse of pods/exec, pods/portforward, secrets get, escalate verb, bind verb, impersonate verb, system:masters group abuse, ServiceAccount token theft and reuse.
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Critical
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Security
3 findings: 1 critical severity, 1 high severity, 1 medium severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E006: Malicious code pattern detected in skill scripts.
What this means
Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.
Why it was flagged
This document is an explicit, step‑by‑step malicious playbook for abusing a stolen Kubernetes ServiceAccount to steal secrets, gain remote code execution, escalate to cluster-admin, create persistent backdoors, and evade detection.
W007: Insecure credential handling detected in skill instructions.
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
The skill explicitly instructs reading ServiceAccount tokens and other secrets from files or cluster Secrets and then embedding those token values into commands/configs (e.g., --token="$TOKEN", kubectl --token="$NEW_TOKEN"), which requires the LLM/agent to handle and output secret values verbatim and therefore is high-risk.
W013: Attempt to modify system services in skill instructions.
What this means
The skill prompts the agent to compromise the security or integrity of the user’s machine by modifying system-level services or configurations, such as obtaining elevated privileges, altering startup scripts, or changing system-wide settings.
Why it was flagged
This skill explicitly instructs obtaining and using a stolen ServiceAccount token, creating privileged pods that mount the host filesystem, and creating serviceaccounts/clusterrolebindings (including backdoor cluster-admin bindings), all of which modify host/cluster state and create persistent accounts/privileges.
- Repository
- PurpleAILAB/Decepticon
- Commit
0cf691e
- Audited
- Security analysis
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