unsloth/tests/security/test_scan_npm_packages.py
Daniel Han 187144d4e7
Reduce and tighten code comments and docstrings repo-wide (#6095)
Trim and tighten code comments and docstrings across the repository. Comment-only: every changed file verified code-identical to main via AST/token comparison.
2026-06-08 23:09:51 -07:00

232 lines
8.9 KiB
Python

"""Regression tests for `scripts/scan_npm_packages.py`.
These tests must run fully offline. The `network_blocker` fixture in
conftest.py refuses any non-loopback socket connect from the test
process; scanner subprocesses are invoked against fixtures that never
trigger an HTTP fetch.
"""
from __future__ import annotations
import io
import json
import subprocess
import sys
import tarfile
from pathlib import Path
import pytest
REPO_ROOT = Path(__file__).resolve().parents[2]
SCRIPT = REPO_ROOT / "scripts" / "scan_npm_packages.py"
FIXTURES = Path(__file__).resolve().parent / "fixtures"
# Import the module so we can introspect the IOC tables directly.
sys.path.insert(0, str(REPO_ROOT))
from scripts import scan_npm_packages as snp # noqa: E402
# ---------------------------------------------------------------------------
# Subprocess helpers.
# ---------------------------------------------------------------------------
def _run_scanner(lockfile: Path, *, timeout: int = 30) -> subprocess.CompletedProcess:
return subprocess.run(
[sys.executable, str(SCRIPT), "--lockfile", str(lockfile)],
capture_output = True,
text = True,
timeout = timeout,
)
# ---------------------------------------------------------------------------
# Lockfile pass: structural-only fixtures (no network).
# ---------------------------------------------------------------------------
def test_malicious_lockfile_exits_1():
"""Structural IOCs alone must fail the scanner. The fixture has a
non-registry `resolved` URL and a missing `integrity` field, both caught in
`parse_lockfile()` before any tarball download, so the test is offline."""
fixture = FIXTURES / "structural_only_lockfile.json"
assert fixture.is_file(), fixture
proc = _run_scanner(fixture)
assert proc.returncode == 1, (
f"expected exit 1, got {proc.returncode}\n"
f"--- stdout ---\n{proc.stdout}\n--- stderr ---\n{proc.stderr}"
)
combined = proc.stdout + proc.stderr
# The scanner aggregates structural findings into the summary
# rather than printing each one individually. Assert on the
# count + the FAIL banner instead.
assert "2 structural finding(s)" in combined
assert "FAIL" in combined
# And confirm `parse_lockfile()` actually surfaces the right
# `pattern` codes via the in-process API.
entries, struct = snp.parse_lockfile(fixture)
patterns = {f.pattern for f in struct}
assert {"non-registry-resolved-url", "missing-integrity-hash"} <= patterns
def test_clean_lockfile_exits_0():
"""The clean fixture only contains entries that `parse_lockfile()`
skips entirely (workspace root + workspace `link` symlink +
nested fold-in), so the scanner exits 0 with no network access.
"""
fixture = FIXTURES / "clean_lockfile.json"
assert fixture.is_file(), fixture
proc = _run_scanner(fixture)
assert proc.returncode == 0, (
f"expected exit 0, got {proc.returncode}\n"
f"--- stdout ---\n{proc.stdout}\n--- stderr ---\n{proc.stderr}"
)
assert "0 finding(s)" in proc.stdout
assert "0 hard error(s)" in proc.stdout
# ---------------------------------------------------------------------------
# BLOCKED_NPM_VERSIONS table -- gated on Fork 1.
# ---------------------------------------------------------------------------
_BLOCKED_AVAILABLE = hasattr(snp, "BLOCKED_NPM_VERSIONS")
@pytest.mark.skipif(
not _BLOCKED_AVAILABLE,
reason = "Fork 1 (BLOCKED_NPM_VERSIONS constant) not merged yet",
)
def test_blocked_npm_versions_complete():
table = snp.BLOCKED_NPM_VERSIONS
tanstack_keys = [k for k in table if k.startswith("@tanstack/")]
assert len(tanstack_keys) == 42, (
f"expected 42 @tanstack/* entries, got {len(tanstack_keys)}: " f"{sorted(tanstack_keys)}"
)
assert "@opensearch-project/opensearch" in table
assert table["@opensearch-project/opensearch"] == {"3.5.3", "3.6.2", "3.7.0", "3.8.0"}
squawk = [k for k in table if k.startswith("@squawk/")]
assert len(squawk) >= 22, (
f"expected at least 22 @squawk/* entries (full safedep.io enumeration), "
f"got {len(squawk)}: {sorted(squawk)}"
)
# @squawk/mcp must cover the full malicious range 0.9.1 .. 0.9.5
# (safedep.io enumeration; we initially had only 0.9.5).
assert {"0.9.1", "0.9.2", "0.9.3", "0.9.4", "0.9.5"} <= table["@squawk/mcp"]
uipath = [k for k in table if k.startswith("@uipath/")]
assert len(uipath) >= 64, (
f"expected at least 64 @uipath/* entries (Aikido enumeration), "
f"got {len(uipath)}: {sorted(uipath)}"
)
# Anchor a known entry: the rpa-tool 0.9.5 version is in the published list.
assert "0.9.5" in table["@uipath/rpa-tool"]
# Aikido (May-12 wave): @mistralai/* npm scope (separate from PyPI mistralai).
assert table["@mistralai/mistralai"] == {"2.2.2", "2.2.3", "2.2.4"}
assert table["@mistralai/mistralai-gcp"] == {"1.7.1", "1.7.2", "1.7.3"}
assert table["@mistralai/mistralai-azure"] == {"1.7.1", "1.7.2", "1.7.3"}
# Aikido: @tallyui/* (10 packages x 3 versions).
tallyui = [k for k in table if k.startswith("@tallyui/")]
assert len(tallyui) == 10, f"expected 10 @tallyui/*, got {sorted(tallyui)}"
# Aikido: @beproduct/nestjs-auth covers the 0.1.2 .. 0.1.19 range (18 versions).
assert table["@beproduct/nestjs-auth"] == {f"0.1.{i}" for i in range(2, 20)}
# Aikido: unscoped infostealer packages (10 total).
for unscoped in (
"safe-action",
"ts-dna",
"cross-stitch",
"cmux-agent-mcp",
"agentwork-cli",
"git-branch-selector",
"wot-api",
"git-git-git",
"nextmove-mcp",
"ml-toolkit-ts",
):
assert unscoped in table, f"missing unscoped malicious pkg: {unscoped}"
# Aikido: payload SHA-256 hashes wired into KNOWN_IOC_STRINGS.
ioc = snp.KNOWN_IOC_STRINGS
assert "ab4fcadaec49c03278063dd269ea5eef82d24f2124a8e15d7b90f2fa8601266c" in ioc
assert "2ec78d556d696e208927cc503d48e4b5eb56b31abc2870c2ed2e98d6be27fc96" in ioc
assert "bun run tanstack_runner.js" in ioc
@pytest.mark.skipif(
not _BLOCKED_AVAILABLE,
reason = "Fork 1 (BLOCKED_NPM_VERSIONS pre-fetch hook) not merged yet",
)
def test_blocked_npm_versions_short_circuits_download():
"""The pre-fetch hook must flag the malicious tanstack entry as
`blocked-known-malicious` (exit 1) without hitting the npm registry."""
fixture = FIXTURES / "malicious_lockfile.json"
proc = _run_scanner(fixture, timeout = 10)
assert proc.returncode == 1
combined = proc.stdout + proc.stderr
assert "blocked-known-malicious" in combined or "BLOCKED_NPM_VERSIONS" in combined
# ---------------------------------------------------------------------------
# KNOWN_IOC_STRINGS coverage -- every IOC must trip the scanner.
# ---------------------------------------------------------------------------
def _extract_pkg_with_ioc(ioc: str, tmp_path: Path) -> Path:
"""Build a one-file npm package extract tree embedding `ioc` in
`package.json`. Returns the extract root.
"""
pkg_json = {
"name": "ioc-fixture",
"version": "0.0.1",
"description": f"contains literal: {ioc}",
}
root = tmp_path / f"pkg_{abs(hash(ioc)) % 10**8}"
(root / "package").mkdir(parents = True)
(root / "package" / "package.json").write_text(
json.dumps(pkg_json),
encoding = "utf-8",
)
return root
def test_every_known_ioc_string_caught(tmp_path):
"""Embed each `KNOWN_IOC_STRINGS` entry in a one-file package tree and
confirm `scan_extracted_tree()` surfaces it. Guards against table drift."""
iocs = snp.KNOWN_IOC_STRINGS
assert iocs, "KNOWN_IOC_STRINGS unexpectedly empty"
pkg = snp.PackageEntry(
name = "ioc-fixture",
version = "0.0.1",
resolved = "https://registry.npmjs.org/ioc-fixture/-/ioc-fixture-0.0.1.tgz",
integrity = "sha512-stub",
lockfile_key = "node_modules/ioc-fixture",
)
for ioc in iocs:
root = _extract_pkg_with_ioc(ioc, tmp_path)
findings = snp.scan_extracted_tree(pkg = pkg, root = root)
hit = any(ioc in f.evidence or ioc in f.detail for f in findings)
assert hit, (
f"KNOWN_IOC_STRINGS[{ioc!r}] not detected by scan_extracted_tree; "
f"findings = {[str(f) for f in findings]}"
)
# ---------------------------------------------------------------------------
# Sanity: lockfile parse pass surfaces the structural findings we expect.
# ---------------------------------------------------------------------------
def test_parse_lockfile_structural_findings():
"""The structural-only fixture yields 2 structural findings and 0 entries
(both bad entries are `continue`d in `parse_lockfile()`)."""
entries, struct = snp.parse_lockfile(FIXTURES / "structural_only_lockfile.json")
assert entries == []
patterns = {f.pattern for f in struct}
assert "non-registry-resolved-url" in patterns
assert "missing-integrity-hash" in patterns