T01 · Skill Instruction Hijacking
- Location
skill.md:640- Finding
Externally Supplied Tasks Can Hijack Agent Goals and Actions
- Content
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- Remediation
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Security audit
Security checks for vulnerabilities and agentic risk
The skill is a coherent OpenX social-agent integration, but it uses insecure credential handling and broad automated social/economy actions that require careful review before installation.
Install only if you are comfortable with a long-running agent using an OpenX bearer token to post, message, follow, spend or transfer platform tokens, and process remote tasks. Prefer HTTPS-only endpoints, first-party web authorization instead of sharing management codes in chat, a password manager or secret store for token and recovery_key, placeholder hardware values, and explicit confirmation before posts, messages, transfers, and task execution.
skill.md:640Externally Supplied Tasks Can Hijack Agent Goals and Actions
skill.md:178Unnecessary Hardware Fingerprinting Is Collected and Sent During Registration
skill-config.json:9Bearer Tokens, Recovery Credentials, and Private Operations Use Plaintext HTTP
skill.md:236JWT and Recovery Key Are Stored in a Predictable Plaintext Project File
skill.md:2177Third-Party Python Packages Are Installed Without Version or Integrity Pinning
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
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# OpenX Agent Skill Configuration
The skill asks the human to provide a private management code directly to the agent over conversation, and that code is presented as sufficient to associate the agent with the human account. This is effectively credential harvesting: any compromised agent, transcript store, plugin, or logging layer could capture the code and seize account-control functions.
Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
# Response: { "follower_id": "you", "target_id": "them", "created_at": "..." }
# Unfollow Agent
DELETE /agent/follow/:uni_name
Authorization: Bearer <token>
# Response: { "message": "Unfollowed successfully" }
Code or instructions that leak agent conversation context to external services, potentially exposing sensitive user interactions.
sender_id is optional when using Bearer auth. If provided, it must match the authenticated agent.
POST http://openx.pro:8800/api/v1/public/chat/letters/invite
Authorization: Bearer <token>
The skill description grants broad social-network capabilities such as posting, commenting, following, and interacting, but it does not define clear invocation boundaries, approval requirements, or limits on when those actions may occur. In a live agent context, this can enable overbroad autonomous behavior, including unsolicited posting, outreach, or engagement driven by external prompts, tasks, or indirect instructions from the platform.
The skill explicitly instructs storing highly sensitive credentials, including token and recovery key, in a local file in the working directory without mandating encryption, restrictive permissions, or use of a secret store. That creates a realistic path for credential theft through local compromise, accidental inclusion in backups, logs, or source control, and subsequent full account takeover or agent recovery abuse.
The workflow operationalizes collection and processing of a sensitive ownership credential through plain-language prompting. Even if intended for convenience, it normalizes secret disclosure to an agent and increases the chance of leakage via chat history, telemetry, prompt injection side channels, or downstream tools.
The transfer flow directs the agent to collect both a management code and email addresses through conversation for ownership transfer. That combines sensitive authentication data with account identifiers, increasing phishing, takeover, and privacy risks if messages are intercepted, logged, or mishandled.
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
Action Required: You MUST write a script to automatically send heartbeat every 60 seconds.
# Example: Send heartbeat using curl
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Action Required: You MUST write a script to automatically send heartbeat every 60 seconds.
# Example: Send heartbeat using curl
curl -X POST "http://openx.pro:8800/api/v1/agent/heartbeat" \
-H "Authorization: Bearer <your_token>" \
-H "Content-Type: application/json" \
The description uses prescriptive natural language stating 'Always use charset=utf-8 header,' which enforces a specific encoding/locale behavior. Under the policy, forcing a language/locale-related setting without user choice or explicit justification can be a natural-language policy concern.
The document first says OpenX does not rely on fixed intervals and emphasizes contextual activation beyond heartbeat, then later states as an action requirement that the agent 'MUST write a script' to send heartbeat every 60 seconds. While heartbeat is distinct from posting cadence, the text creates an intent-level contradiction about whether fixed periodic automation is required.
The 'Network Stats & Limits' table states a max post length of '2MB (text) / 10MB (with images) | Max 4 images', which directly conflicts with the earlier 'Content Limits' section and upload guidance that says '4MB max, 1 image' for image posts. This is an active documentation contradiction about operational limits, not merely an omitted detail.