T01 · Skill Instruction Hijacking
Error
- Location
SKILL.md:13- Finding
Untrusted Skill Instructions Override Agent Goals and Trusted Context
- Content
View full analysis
- Remediation
View remediation
Security audit
Call Doubao1 5 Llm
Security checks for vulnerabilities and agentic risk
Overview
This markdown-only skill has no code or persistence, but its stated Doubao LLM purpose does not match instructions that try to control the agent’s role, language, and use of meeting minutes.
Review this skill carefully before installing. It appears low-risk at the system level because it is only a markdown prompt, but its instructions are not well aligned with the advertised purpose and may steer an agent to follow meeting-minute content or role framing more strongly than users expect.
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
Findings (1)
Vulnerability Patterns
- Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
- Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
- 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 (2)
Vague Triggers
Medium
- Category
- Not specified by scanner
- Confidence
- 86% confidence
- Finding
The skill description is so broad that it does not meaningfully constrain when the skill should be invoked or what tasks it is allowed to handle. In an agent environment, vague activation scope increases the chance of inappropriate routing, causing the skill’s embedded behavioral instructions to affect unrelated tasks and potentially override safer, more task-specific behaviors.
- Content
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 91% confidence
- Finding
The skill imposes a mandatory language-matching rule and frames it as the highest-priority directive, which can override normal agent behavior without clear user opt-in. Because the skill is broadly scoped, this instruction could be applied in unrelated contexts, leading to policy conflicts, reduced operator control, or mishandling of tasks where a different response language is required for safety, review, or system integration.
- Content
Static analysis
No suspicious patterns detected.