T08 · Insecure Dependencies
Warning
- Location
- SKILL.md:14
- Finding
- Unpinned Third-Party Python Package Installation## Vulnerability Details **File Location**: `SKILL.md`, line 14 **Vulnerability Type**: `T08: Insecure Dependencies` **Risk Level**: Medium **Complete Code Snippet**: ```bash pip install oasyce oas doctor --json # verify installation ``` ### Technical Analysis The skill directs users or agents to install the latest available `oasyce` package from the configured Python package index. It does not pin a reviewed version, verify package hashes, use a lockfile, identify a trusted publisher or repository, or require an isolated environment. Python package installation may execute package-controlled build or installation logic. Consequently, a compromised publisher account, malicious replacement package, dependency-confusion event, or unexpectedly compromised future release could execute attacker-controlled code. The project only contains `SKILL.md`, so there is no local implementation against which the installed `oas` CLI can be audited. No evidence establishes that the named package is currently malicious; the confirmed issue is the unsafe, non-reproducible dependency installation practice. ### Attack Path 1. An attacker compromises the package, its publisher account, or one of its transitive dependencies. 2. The attacker publishes a malicious release under a version accepted by the unpinned installation command. 3. A user or agent follows the skill and runs `pip install oasyce`. 4. Pip downloads the attacker-controlled release from the configured package index. 5. Malicious build, installation, import, or CLI code executes with the privileges of the installing or invoking user. 6. The malicious package can abuse subsequent marketplace operations performed through the installed CLI. ### Impact Assessment Successful exploitation could provide arbitrary code execution with the installing user's privileges. The attacker could access files, environment variables, network credentials, marketplace-related data, and othe ...[truncated 393 chars]
- Remediation
- ## Remediation Suggestions - Pin the dependency to a specifically reviewed version using an exact version constraint. - Publish a lockfile containing all resolved transitive dependencies. - Require cryptographic hashes and install with `pip --require-hashes`. - Document the canonical source repository, package-index namespace, and verified publisher. - Review package contents and transitive dependencies before approving version updates. - Install the package in a dedicated virtual environment or sandbox under a least-privileged account. - Prefer reproducible, signed release artifacts and verify signatures or attestations where available.