T08 · Insecure Dependencies
- Location
SKILL.md:61- Finding
Unpinned Third-Party Dependency Installation
- Content
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Vulnerability Details
File Location:
SKILL.md:61
Vulnerability Type: Unpinned third-party dependency and supply-chain risk
Risk Level: MediumVulnerable Code
markdown ## Dependencies - Python 3.7+ - `scrapling` (`pip install scrapling`)The installed package is subsequently imported and trusted by the application:
python try: from scrapling.fetchers import Fetcher except ImportError: print("ERROR: scrapling not installed. Run: pip install scrapling") sys.exit(1)Technical Analysis
The installation instructions use
pip install scraplingwithout specifying a reviewed version, cryptographic hash, lockfile, or trusted package index. Consequently, each installation may resolve to whichever package release is current at that time rather than to the version reviewed with this project.Python packages can execute code during package building or installation, and their imported modules execute initialization code when loaded. The script imports
scrapling.fetchersat startup and instantiates itsFetcherclass, placing the dependency within the application's trusted execution path.This issue does not establish that the current
scraplingpackage is malicious. It creates a supply-chain exposure if the upstream project, maintainer account, release process, distribution infrastructure, or a future release is compromised.Attack Path
- An attacker compromises the upstream package maintainer account, build pipeline, or package distribution channel.
- The attacker publishes a malicious or backdoored release under the expected
scraplingpackage name. - A user follows the documented command and runs
pip install scrapling. - Because no version or hash is pinned, the package installer resolves and installs the attacker-controlled release.
- Malicious code may run during installation or when
scripts/scrape.pyimportsscrapling.fetchers. - The ...[truncated 777 chars]
- Remediation
View remediation
Remediation Suggestions
- Pin
scraplingto a specifically reviewed version rather than installing the latest available release:text scrapling==REVIEWED_VERSION - Store dependencies in a committed requirements or lock file.
- Generate and verify cryptographic hashes, then install with hash enforcement:
bash python -m pip install --require-hashes -r requirements.txt - Explicitly use the intended package index and avoid untrusted extra indexes:
bash python -m pip install --index-url https://pypi.org/simple --require-hashes -r requirements.txt - Review the pinned package version and its transitive dependencies before release.
- Run the scraper in a dedicated virtual environment or restricted container under a non-privileged account.
- Use automated dependency monitoring, but require review and testing before updating the lockfile.
- Update
SKILL.mdand the import-error message inscripts/scrape.pyso they direct users to the locked installation procedure instead of an unrestrictedpip install scraplingcommand.
- Pin
