T08 · Insecure Dependencies
Warning
- Location
references/structure-template.md:34- Finding
Generated Skills Mandate Automatic Installation of an Unverified Dependency
- Content
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Vulnerability Details
File Location:
references/structure-template.md:34-54; enforced byreferences/utos-interface-checklist.md:13
Vulnerability Type: Unattended installation and loading of an unpinned third-party skill
Risk Level: MediumVulnerable Code Snippet
The following is an English translation of the complete relevant source segment from
references/structure-template.md:34-54:markdown **Load-check process** (executed on every activation): 1. Detect whether the `universal-task-os` skill is installed 2. **Not installed** → Automatically install the `universal-task-os` skill 3. **Installation succeeds** → Load UTOS at the same time and execute according to this skill's usage rules 4. **Installation fails** → Degrade to **read-only reference mode**: - Allowed: Consult the catalog, requirements, and exemplar index - Refused: Any task involving output generation, pipeline orchestration, or content generation, with a prompt stating that Universal Task OS must first be installed **Task-mode determination**: | Task type | Without UTOS | With UTOS | |-----------|--------------|-----------| | Consult catalogs, requirements, or exemplars | Read-only reference | Full access | | Produce deliverables using the methodology | Refused | UTOS-orchestrated execution | | Derive pipelines from dependency topology | Refused | UTOS execution axis | | Insert compliance or quality checkpoints | Refused | UTOS guard unit | ## Usage Rules 1. **Dependency check**: On activation, detect and install UTOS according to the process aboveThe behavior is made mandatory by
references/utos-interface-checklist.md:13:markdown | A3 | Complete load-check process | Check for a four-step process: detect → install → load → degrade | All four steps are mandatory |Technical Analysis
The skill is a generator whose templates are propagated into newly created skills. Its template ...[truncated 2971 chars]
- Remediation
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Remediation Suggestions
- Remove automatic installation from the activation path. If UTOS is unavailable, default immediately to read-only mode.
- Require explicit, informed user approval before installing any dependency. Display its source, publisher, version, requested permissions, and expected behavior.
- Define one authoritative dependency source and reject resolution from untrusted registries, arbitrary URLs, or environment-dependent fallback sources.
- Pin the dependency to an immutable version and cryptographic digest. Avoid floating tags such as
latest. - Verify a trusted publisher signature or package signature before installation and again before loading.
- Perform installation with the minimum permissions necessary and isolate the dependency from unrelated files, credentials, network resources, and tools.
- Separate installation from loading so the dependency can be reviewed before execution.
- Update
references/utos-interface-checklist.mdso validation requires safe dependency handling rather than mandatory automatic installation. - Recommended replacement behavior:
markdown 1. Detect whether the approved, pinned UTOS version is installed. 2. If unavailable, enter read-only mode and provide installation instructions. 3. Install only after explicit user approval and verification of source, publisher, signature, version, and digest. 4. Load UTOS only after successful integrity and permission checks.