T07 · Tool Hijacking and Spoofing
- Location
main.py:11- Finding
External Import-Path Injection Enables Execution of Unreviewed Local Code
- Content
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Vulnerability Details
File Location:
main.py:11-18
Vulnerability Type:T07: Tool Hijacking and Spoofing
Risk Level: HighComplete Code Snippet:
python # Dynamic project path insertion PROJECT_ROOT = r"D:\javaworkspace\Winner-Ai" sys.path.insert(0, PROJECT_ROOT) from app.services.ai_chat_orchestrator import AIChatOrchestrator from app.schemas.text2sql import ResponseMessage from app.agents.base import StreamResponseCollector from app.core.redis_client import get_redis_client from app.core.json_encoder import clean_message_dataTechnical Analysis
The Skill prepends a hard-coded external location to
sys.path, giving that location priority over normally resolved Python packages. It then imports multipleappmodules that are not included in the audited project.Python executes module-level code during import. Consequently, the effective behavior of this Skill depends on unreviewed files at the resolved path. On systems where the Windows-style path does not represent an absolute Windows path, it may also be interpreted relative to the working environment, increasing the possibility that another user or process can create the expected package structure.
This is a tool or module hijacking weakness: an attacker who can control the resolved path can provide a spoofed
apppackage whose names match the expected imports.Attack Path
- An attacker obtains write access to the hard-coded path or to the location where it resolves in the runtime environment.
- The attacker creates or modifies an
apppackage containing modules such asservices/ai_chat_orchestrator.py. - The victim loads or invokes the Skill.
sys.path.insert(0, PROJECT_ROOT)places the attacker-controlled location at the front of the import search path.- Python resolves the imports from the spoofed package.
- Attacker-controlled module initialization code executes with the privileges of the Skill pr ...[truncated 801 chars]
- Remediation
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Remediation Suggestions
- Package all required implementation modules inside the reviewed Skill artifact, or install them as a separately reviewed and integrity-verified package.
- Do not prepend hard-coded or potentially writable directories to
sys.path. - If local imports are required, derive the path from
Path(__file__).resolve()and ensure it remains within the trusted package directory. - Verify the resolved origin of imported modules using
importlib.util.find_spec()before importing them. - Reject modules whose resolved paths fall outside an approved, read-only directory.
- Run the Skill under a dedicated least-privilege account with restricted filesystem, database, and network permissions.
- Include the orchestration and SQL-execution implementation in future audits so its authorization and query-safety controls can be assessed.
