T08 · Insecure Dependencies
Warning
- Location
SKILL.md:17- Finding
Unpinned Third-Party Dependency Installation
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 17–22
Vulnerability Type: Unpinned third-party dependencies
Risk Level: MediumVulnerable Code
markdown Before using code patterns, verify installed versions match. If versions differ: - `pip show rasterio pandas openpyxl` If code throws ImportError, install missing packages: ```bash pip install rasterio pandas openpyxltext ### Technical Analysis The installation command retrieves `rasterio`, `pandas`, and `openpyxl` without exact version constraints, package hashes, or a reviewed lockfile. The documented compatibility ranges do not constrain the versions that `pip` ultimately installs. Because Python package installation can execute package build and installation logic, the security of this instruction depends on mutable package-index content and the complete transitive dependency graph. A compromised package release, dependency takeover, or unsafe future version could therefore run code with the privileges of the user performing the installation. No evidence indicates that the currently named packages are malicious. The risk arises from the unpinned and unverifiable dependency installation process. ### Attack Path 1. An attacker compromises a named package, one of its transitive dependencies, or its package-index release channel. 2. The attacker publishes a malicious version that still satisfies the unconstrained installation request. 3. A user follows the Skill instructions and runs `pip install rasterio pandas openpyxl`. 4. `pip` resolves the compromised release and executes its build or installation logic. 5. The malicious package gains code execution under the installing user's account and may subsequently execute again when imported by `extract_worldclim.py`. ### Impact Assessment Successful exploitation could provide arbitrary code execution with the privileges of the user running `pip`. Depending on that user's permissions and environment, the attacker could acc ...[truncated 359 chars]- Remediation
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Remediation Suggestions
- Create a reviewed dependency manifest containing exact versions for all direct and transitive dependencies.
- Generate and verify cryptographic hashes for every permitted distribution.
- Install dependencies with hash enforcement, for example:
bash python3 -m venv .venv . .venv/bin/activate python3 -m pip install --require-hashes -r requirements.txt- Use a trusted package index explicitly and disable unexpected extra indexes where operationally appropriate.
- Periodically regenerate the lockfile through a controlled dependency-review process rather than allowing automatic upgrades.
- Run installation and execution as an unprivileged user in an isolated virtual environment or container.
- Add automated dependency vulnerability and integrity scanning to release checks.