T08 · Insecure Dependencies
Warning
- Location
- scripts/requirements.txt:1
- Finding
- Unbounded Third-Party Dependency Installation## Vulnerability Details **File Location**: `scripts/requirements.txt:1` and `SKILL.md:55-57` **Vulnerability Type**: T08: Insecure Dependencies **Risk Level**: Medium ### Vulnerable Code `scripts/requirements.txt:1`: ```text ppio_sandbox>=1.0.5 ``` `SKILL.md:55-57`: ```bash pip3 install "ppio_sandbox>=1.0.5" # Or: pip3 install -r skills/ppio-sandbox/scripts/requirements.txt ``` ### Technical Analysis The dependency is constrained only by a minimum version. The package installer may therefore select any later release available from the configured package index. This conflicts with the statement in `SKILL.md` that the SDK version is pinned and tested. Python packages can execute installation-time code, and their imported modules execute locally with the privileges of the user running the Skill. The dependency is also entrusted with the PPIO API key and all remote sandbox operations. A compromised future release, malicious package-index response, or insufficiently reviewed update could consequently execute local code or access authentication and transferred data. No evidence indicates that the currently referenced `ppio_sandbox` package is malicious. The vulnerability is the absence of deterministic version and integrity controls. ### Attack Path 1. An attacker compromises the package publisher account, distribution infrastructure, or a later eligible release. 2. The attacker publishes a malicious version newer than or equal to `1.0.5`. 3. A user follows the documented installation command. 4. Pip resolves the malicious version because the `>=` constraint permits it. 5. Malicious installation or import code runs with the installing user's local privileges. 6. The package can access data available to that process, including the PPIO API key when the CLI is invoked, and can alter sandbox requests or exfiltrate submitted content. ### Impact Assessment Successful exploitation could permit arbi ...[truncated 578 chars]
- Remediation
- ## Remediation Suggestions 1. Replace the lower-bound constraint with an exactly audited version, for example: ```text ppio_sandbox==1.0.5 ``` 2. Generate and commit a lock file containing cryptographic hashes. 3. Install with pip's `--require-hashes` option so modified distributions are rejected. 4. Use a trusted package index and explicitly configure the expected index rather than relying on ambient pip configuration. 5. Test dependency updates before changing the lock file. 6. Correct the documentation so claims about pinning accurately match the enforced dependency policy. 7. Run installation and execution as an unprivileged account in an isolated virtual environment.