T08 · Insecure Dependencies
Warning
- Location
- SKILL.md:15
- Finding
- Unpinned Third-Party Dependencies Without Integrity Verification## Vulnerability Details **File Location**: `SKILL.md:15` **Vulnerability Type**: Unpinned and integrity-unverified third-party dependencies **Risk Level**: Medium ```bash pip install python-pptx pillow ``` ### Technical Analysis The documented installation command retrieves the latest available releases of `python-pptx` and `pillow` without version constraints, a lock file, or cryptographic hash verification. Consequently, the dependency code installed by users may differ from the code present when the Skill was audited. This creates a supply-chain exposure: if a dependency release or its distribution account is compromised, users following the documented command could install attacker-controlled code. Python packages may execute code during installation or when imported by `ppt_maker.py`. No evidence was found that either named package is currently malicious. The finding concerns the absence of dependency version and integrity controls. ### Attack Path 1. An attacker compromises a dependency release channel or publishes a malicious version through another applicable package-supply-chain attack. 2. A user follows the instruction in `SKILL.md` and runs `pip install python-pptx pillow`. 3. `pip` resolves the mutable latest releases because no reviewed versions are pinned. 4. The malicious package code executes during installation or when `ppt_maker.py` imports the dependency. 5. The code operates with the privileges of the user or automation account running the installation or presentation generator. ### Impact Assessment Successful exploitation could provide arbitrary Python code execution under the installing user’s privileges. The resulting scope could include access to files, credentials, environment variables, and network resources available to that account. Administrative or root-level impact would require the installation command to be run with corresponding elevated privileges. The remaining audited implemen ...[truncated 325 chars]
- Remediation
- ## Remediation Suggestions 1. Create a dependency file containing exact versions that have been reviewed and tested, for example: ```text python-pptx==REVIEWED_VERSION Pillow==REVIEWED_VERSION ``` 2. Generate and record SHA-256 hashes for every required distribution, including transitive dependencies. 3. Require hash validation during installation: ```bash python -m pip install --require-hashes -r requirements.txt ``` 4. Generate the locked dependency set from a trusted package index and explicitly configure the approved index URL where appropriate. 5. Review dependency updates before changing the lock file, and use automated vulnerability and provenance scanning in the release process. 6. Advise users to install dependencies in an isolated virtual environment without administrative privileges.