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Security audit

Zto

Security checks for vulnerabilities and agentic risk

Overview

This ZTO Express skill is a disclosed logistics helper, with local storage noted for history and privacy features but no hidden execution or exfiltration behavior in the inspected artifacts.

Before installing, be aware that using local runtime features may store shipment history, subscription records, and possibly address records on this machine. Use the privacy clear/export controls if you do not want that data retained, especially on shared devices.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Rogue AgentSelf-Modification, Session Persistence
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (3)

Session Persistence

Medium
Category
Rogue Agent
Confidence
90% confidence
Finding

The skill explicitly documents local persistence of query history, shipment-subscription records, and possibly saved address records under predictable filesystem paths. Even though it mentions privacy controls and a mode-600 key file, storing shipping history and address data locally increases exposure to privacy leakage on shared or compromised hosts, especially if data retention is broader than necessary or encryption/key management is weak.

Content

Scanner excerpt · SKILL.md (reported line 33)May include surrounding context.

md
## Local Persistence

When the local CLI/runtime code is used, this skill may create and persist local data under:

- `~/.openclaw/data/zto/zto.db`
  - stores query history

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
95% confidence
Finding

The README is entirely written in Chinese and does not indicate that users may interact in other languages or choose their preferred language. Under the policy rule for language or locale constraints, this can be a natural-language policy issue unless the locale restriction is explicitly justified or optional.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

The file includes user-facing example inputs and expected outputs in Chinese, including operational guidance and sample status messages, but it does not state that the skill can respond in the user's preferred language. This can be a language/locale policy issue because the skill appears to assume Chinese output without explicit user opt-in or a documented locale constraint.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.