T08 · Insecure Dependencies
Warning
- Location
- SKILL.md:36
- Finding
- Unpinned Third-Party Dependency Installation## Vulnerability Details **File Location**: `SKILL.md`, lines 36–40 **Vulnerability Type**: Unpinned third-party package dependency **Risk Level**: Medium ### Vulnerable Code ```markdown ## Dependencies ```bash pip3 install reportlab ``` ``` ### Technical Analysis The installation instructions retrieve `reportlab` from the user's configured Python package index without specifying an audited version or verifying an integrity hash. Consequently, the installed package and its transitive dependencies may change over time, and installation relies on the security of the configured index, package releases, and dependency resolver. This creates a software supply-chain risk. If an upstream release, package-index account, configured mirror, or transitive dependency is compromised, following the documented command could install attacker-controlled code. Python packages may execute code during installation, and the installed package is later imported by `scripts/md_to_pdf.py`, providing another execution opportunity. No evidence indicates that the current `reportlab` package is malicious. The finding concerns the mutable and unverified dependency installation process. ### Attack Path 1. An attacker compromises an upstream package release, a transitive dependency, the configured package index, or a package mirror used by the victim. 2. The victim follows the Skill documentation and runs `pip3 install reportlab`. 3. Pip resolves and downloads the attacker-controlled package version because no version or integrity hash is required. 4. Malicious package code executes during installation or when `scripts/md_to_pdf.py` imports ReportLab. 5. The malicious code runs with the privileges of the user executing pip or the conversion script. ### Impact Assessment Successful exploitation could allow arbitrary code execution under the invoking user's account. Depending on that account's permissions, an attacker could access or modify files available to the user, read environ ...[truncated 282 chars]
- Remediation
- ## Remediation Suggestions 1. Pin ReportLab to a reviewed, exact version rather than accepting the latest available release. 2. Place dependencies in a version-controlled requirements file and require cryptographic hashes, for example: ```text reportlab==<reviewed-version> \ --hash=sha256:<verified-package-hash> ``` 3. Install with hash enforcement: ```bash python3 -m pip install --require-hashes -r requirements.txt ``` 4. Pin and hash all transitive dependencies, preferably using a lock-file workflow such as `pip-tools`. 5. Use an explicitly trusted package index or internally controlled artifact repository. 6. Periodically review pinned versions for known vulnerabilities and update them through a controlled testing and approval process. 7. Perform installation in an isolated virtual environment or container under a non-privileged account.