T08 · Insecure Dependencies
Warning
- Location
- SKILL.md:81
- Finding
- Unpinned Third-Party Python Dependencies## Vulnerability Details **File Location**: `SKILL.md`, lines 81–84 **Vulnerability Type**: Unpinned and unverified package installation **Risk Level**: Medium ```bash # Install required libraries pip install python-docx reportlab pillow # Or use docx2pdf pip install docx2pdf ``` ### Technical Analysis The installation instructions retrieve mutable versions of third-party packages from the package index configured for `pip`. No exact versions, cryptographic hashes, lockfile, or trusted package-index configuration are specified. Consequently, the dependencies installed by these commands can differ from those reviewed or tested by the skill author. Python package installation can execute package build or installation logic, so compromise of a named package, one of its transitive dependencies, or the configured package index could result in arbitrary code execution during installation. The instructions do not explicitly use elevated privileges. Therefore, the directly supported impact is limited to the permissions of the account running `pip`; administrative or root-level impact would require the user or execution environment to run the command with additional privileges. ### Attack Path 1. An attacker compromises a named package, a transitive dependency, or a package source configured in the victim's `pip` environment. 2. The attacker publishes or serves a malicious version that remains compatible with the unrestricted dependency request. 3. A user or agent follows the instructions in `SKILL.md` and runs one of the unpinned `pip install` commands. 4. `pip` resolves and downloads the attacker-controlled package version. 5. Malicious installation or runtime code executes with the privileges of the user performing the installation. ### Impact Assessment Successful exploitation could permit arbitrary code execution under the installing user's account. This could expose files, credentials, environment variables, and documents accessible to that account; al ...[truncated 286 chars]
- Remediation
- ## Remediation Suggestions - Pin every direct dependency to a reviewed, exact version. - Resolve and pin transitive dependencies in a lockfile. - Generate cryptographic hashes for all approved distributions and install with `pip install --require-hashes`. - Explicitly use the intended trusted package index and disable unintended extra indexes where practical. - Install packages in an isolated virtual environment under a non-privileged account. - Prefer prebuilt, reviewed wheels and prohibit source builds where operationally feasible. - Add automated dependency vulnerability and integrity scanning to the release process. - Periodically update pinned versions through a controlled review and testing workflow. A hardened installation pattern would use a reviewed requirements file: ```bash python -m venv .venv . .venv/bin/activate python -m pip install --require-hashes -r requirements.txt ```