T08 · Insecure Dependencies
Warning
- Location
SKILL.md:14- Finding
Unpinned Global Installation of a Third-Party npm Package
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 14–18
Vulnerability Type: Unpinned and globally installed third-party dependency
Risk Level: MediumVulnerable Code:
markdown ## Installation ```bash npm install -g anylist-clitext ### Technical Analysis The installation instructions direct users to install the latest available version of `anylist-cli` globally without specifying a reviewed version or verifying package integrity. Because npm packages can execute lifecycle scripts during installation, installing an unpinned package may execute code that was not present when this Skill was audited. The `-g` option also places the package executable in a shared command path, increasing the package's reach beyond an isolated project environment. The audit did not establish that `anylist-cli` is currently malicious. The vulnerability is the unsafe dependency acquisition model: package ownership compromise, a malicious future release, or another npm supply-chain incident could change the effective code executed by users without requiring any modification to this Skill. ### Attack Path 1. An attacker compromises the npm publisher account, package repository, or release process associated with `anylist-cli`. 2. The attacker publishes a malicious package version containing an npm lifecycle script or altered CLI implementation. 3. A user follows the Skill's unpinned installation instruction: ```bash npm install -g anylist-cli ``` 4. npm resolves and downloads the attacker-controlled release. 5. Malicious lifecycle code may execute during installation with the privileges of the installing user. 6. The globally installed executable may subsequently execute attacker-controlled behavior whenever the documented `anylist` commands are invoked. ### Impact Assessment Successful exploitation could permit arbitrary code execution with the privileges of the user performing the inst ...[truncated 565 chars]- Remediation
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Remediation Suggestions
- Pin
anylist-clito a specific version that has been reviewed:bash npm install --global anylist-cli@<reviewed-version> - Document the expected package source, publisher, version, and integrity hash so users can verify provenance before installation.
- Prefer a project-local or otherwise isolated installation instead of
-g, reducing exposure of the shared command environment. - Use a lockfile and npm integrity metadata where the deployment model permits it.
- Review the selected package version, including its dependency tree and npm lifecycle scripts.
- Consider installation with lifecycle scripts disabled when compatible:
bash npm install --ignore-scripts anylist-cli@<reviewed-version> - Establish a controlled update process in which new package versions are audited before the pinned version is changed.
- Pin