T08 · Insecure Dependencies
Warning
- Location
- SKILL.md:10
- Finding
- Unpinned Third-Party BLE Dependencies<![CDATA[ ## Vulnerability Details **File Location**: `SKILL.md`, lines 10-14 **Vulnerability Type**: Unpinned third-party dependencies and missing integrity verification **Risk Level**: Medium ### Vulnerable Code ```markdown ## Requirements - Python 3.10+, `bleak` (BLE), `bless` (MITM proxy) - Linux with BlueZ and a BLE-capable adapter - Install: `pip install bleak bless` ``` ### Technical Analysis The documented installation command retrieves the latest versions of `bleak` and `bless` without pinning reviewed versions or verifying package hashes. Consequently, the code installed by following the Skill documentation can change after the Skill itself has been audited. The packages are retrieved through pip's configured package index. If a dependency release or its distribution account is compromised, users can receive attacker-controlled package code. Unpinned versions can also introduce incompatible or vulnerable transitive dependencies without any change to this repository. There is no evidence that the named packages are currently malicious. The vulnerability is the absence of version and artifact integrity controls in the prescribed installation process. ### Attack Path 1. An attacker compromises a dependency maintainer account, distribution pipeline, package-index account, or a dependency used by one of the named packages. 2. The attacker publishes a malicious release under the legitimate package name. 3. A user follows the documented `pip install bleak bless` command. 4. Pip resolves the mutable latest release because no version or hash constraints are supplied. 5. Malicious package installation or runtime code executes under the account running pip or the controller. ### Impact Assessment Successful exploitation can provide arbitrary Python code execution with the privileges of the user who installs or runs the dependencies. This may allow access to that user's files, environment variables, network resources, and Bluetooth interfaces. If instal ...[truncated 83 chars]
- Remediation
- <![CDATA[ ## Remediation Suggestions 1. Add a reviewed dependency manifest that pins exact versions, including relevant transitive dependencies. 2. Generate and record cryptographic hashes for every permitted distribution artifact. 3. Install with hash enforcement, for example: ```bash python3 -m pip install --require-hashes -r requirements.txt ``` 4. Review dependency updates before changing pins and use automated vulnerability and provenance scanning. 5. Install the controller in an isolated virtual environment under an unprivileged user. 6. Avoid recommending system-wide or root-level pip installation. ]]>