T08 · Insecure Dependencies
Note
- Location
SKILL.md:32- Finding
Unpinned Third-Party Python Dependency
- Content
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Vulnerability Details
File Location:
SKILL.md:32-38
Vulnerability Type: Unpinned third-party dependency
Risk Level: LowVulnerable Code
markdown - Python 3.6+ - Dependency: - `python-docx` (Word document processing) Install the dependency: ```bash pip install python-docxtext ### Technical Analysis The installation instructions retrieve `python-docx` without specifying an exact, reviewed version or validating package integrity with cryptographic hashes. Consequently, installation results can change over time and depend on the package index configured in the execution environment. The package name appears legitimate, and the audited project contains no evidence that its author controls or intentionally substitutes the dependency. The risk arises if a package release, package-index account, mirror, or local package-index configuration is compromised. Because the implementation imports `docx` when document functions are invoked, malicious code introduced into the installed dependency could execute with the privileges of the process running the Skill. ### Attack Path 1. An attacker compromises a future `python-docx` release, its publishing account, a configured package mirror, or the environment's package-index configuration. 2. A user or Agent follows the documented `pip install python-docx` instruction. 3. Pip resolves and installs the attacker-influenced package because no version or hash constraints are present. 4. The Agent invokes a document-processing operation such as `check_docx_installed`, `create_document`, or `read_document`. 5. The script imports the installed `docx` module, allowing malicious dependency code to execute in the Agent process. ### Impact Assessment Successful exploitation could execute arbitrary Python code with the same operating-system privileges as the user or Agent process. This may permit access to files, environment variables, credentials, and net ...[truncated 238 chars]- Remediation
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Remediation Suggestions
- Pin
python-docxto a specific version that has been reviewed and tested:bash pip install python-docx==<reviewed-version> - Maintain dependencies in a lock or requirements file with SHA-256 hashes:
text python-docx==<reviewed-version> \ --hash=sha256:<verified-package-hash> - Install with hash verification enabled:
bash pip install --require-hashes -r requirements.txt - Explicitly use a trusted package index and prevent untrusted supplemental indexes from overriding dependency resolution.
- Periodically review and update the pinned version after vulnerability and provenance checks.
- Run the Skill in a least-privileged, isolated environment with restricted filesystem, credential, and network access to limit the impact of a compromised dependency.
- Pin