T08 · Insecure Dependencies
Warning
- Location
- README.md:19
- Finding
- Unpinned Package Execution During Installation<![CDATA[ ## Vulnerability Details **File Location**: `README.md:19` **Vulnerability Type**: Unpinned third-party package execution **Risk Level**: Medium ### Vulnerable Code ```bash npx skills add SerendipityOneInc/ZooData-Skills ``` ### Technical Analysis The documented installation procedure invokes `npx` without pinning the `skills` package to a reviewed version or verifying its integrity. Depending on the local npm environment, `npx` can download and execute the currently resolved registry version of that package. Consequently, the code executed during installation is not necessarily the same code that was present when this Skill was audited. A compromised registry account, package takeover, malicious future release, or resolution of an unintended package version could introduce arbitrary installation-time behavior. This is a supply-chain weakness rather than evidence that the currently reviewed package is malicious. ### Attack Path 1. An attacker compromises the npm package resolved as `skills`, its publisher account, or its dependency chain. 2. The attacker publishes a malicious version or modifies a transitive dependency. 3. A user follows the installation command from `README.md`. 4. `npx` resolves and downloads the unpinned package version. 5. The downloaded package or its lifecycle dependencies execute with the permissions of the user running the command. ### Impact Assessment Successful exploitation could result in arbitrary code execution under the installing user's account. The resulting access could include reading user-accessible files and credentials, modifying local configuration, installing persistence, or making network requests. The precise scope depends on the privileges of the user who runs `npx`. The documented command does not itself request administrator privileges. ]]>
- Remediation
- <![CDATA[ ## Remediation Suggestions 1. Pin the installer package to a specific reviewed version, for example: ```bash npx --package=skills@PINNED_VERSION skills add SerendipityOneInc/ZooData-Skills ``` 2. Publish and verify package integrity hashes or signed release artifacts. 3. Use a lockfile where the installation workflow permits it. 4. Document the expected package publisher, version, and registry. 5. Review package lifecycle scripts and transitive dependencies before updating the pinned version. 6. Recommend running installation with a non-privileged account and without unnecessary environment secrets. ]]>