T08 · Insecure Dependencies
Error
- Location
- main.py:4
- Finding
- Untrusted External Module Loading Through Runtime Path Modification## Vulnerability Details **File Location**: `main.py`, lines 4-6 **Vulnerability Type**: Insecure dependency loading and Python module search-path manipulation **Risk Level**: High **Vulnerable Code**: ```python # Add the parent directory to sys.path so we can import agent_redteam sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '../..'))) import argparse from agent_redteam import repo_scanner ``` ### Technical Analysis The application adds a directory outside the audited skill package to Python's module search path and subsequently imports `agent_redteam.repo_scanner`. The imported package is not included in the audited project, and the project contains no dependency manifest or lock file that establishes an authenticated, version-pinned source for it. Python executes module-level code while importing a package. Consequently, the effective behavior of this skill depends on external, unreviewed code available in the runtime environment. An attacker who can place or replace an `agent_redteam` package in an eligible import location could cause arbitrary Python code to execute when the skill starts. Using `sys.path.append()` also does not guarantee that the intended parent-directory package will be selected. An identically named package already present earlier in `sys.path` may take precedence, which increases exposure to package shadowing, dependency confusion, or a compromised environment. The supplied repository URL is later passed directly to the external implementation: ```python report = repo_scanner.scan_repo(parsed_args.repo_url) ``` Because `repo_scanner` is absent from the project, its network access, repository handling, authentication behavior, and input validation cannot be verified by this audit. ### Attack Path 1. The attacker gains the ability to install or place a Python package named `agent_redteam` in an eligible module search location, including a location searched befo ...[truncated 1469 chars]
- Remediation
- ## Remediation Suggestions 1. Remove the runtime modification of `sys.path`. 2. Package `agent_redteam` as an auditable, package-relative module within the project when it is first-party code. 3. If it is a third-party dependency, declare an exact version in a dependency manifest and use a lock file with verified package hashes. 4. Install dependencies exclusively from a trusted, authenticated package repository. Prevent fallback to public registries when private package names are used. 5. Execute the skill in an isolated virtual environment containing only approved dependencies. 6. Verify the resolved module path during deployment and reject modules loaded from unexpected directories. 7. Review and include the `repo_scanner` implementation in the audit scope, particularly its URL validation, network destinations, credential handling, repository checkout logic, subprocess use, and temporary-file handling. 8. Run repository scanning with least privilege, restricted filesystem access, minimal environment variables, and outbound network controls.