collector: tag CVEs yours/upstream/update + stop flagging the edge
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cve: each image now carries an UPDATE STATUS in its title — [yours] (git.skui.io image,
fix in its repo), [update] (third-party, a NEWER image is published -> pull it), or
[upstream] (already running the latest published image -> clears only when the maintainer
rebuilds). 'Fixable' just means a patched package exists, not that you can apply it; the
status makes that explicit, and actionable findings now sort above the can't-touch ones.

config: the designated edge (SOC_EDGE, default 'traefik') is allowed to own 0.0.0.0:80/443
-- that is its job -- so it's reported as good rather than a false-positive finding.
This commit is contained in:
Steffen Skui
2026-06-24 21:46:24 +02:00
parent 67eaf409b9
commit 9277db02a5
2 changed files with 81 additions and 19 deletions
+17 -4
View File
@@ -1,15 +1,23 @@
"""Config-drift source: read-only Docker socket -> 0.0.0.0 binds, privileged, rw-socket mounts."""
"""Config-drift source: read-only Docker socket -> 0.0.0.0 binds, privileged, rw-socket mounts.
The designated edge proxy (SOC_EDGE, default 'traefik') is SUPPOSED to own 0.0.0.0:80/443 —
that's its whole job — so its public binds are reported as good, not flagged (false positive)."""
import os
from soc import finding
from . import _docker
# Containers that are the public edge: allowed to bind 0.0.0.0 (they front the estate).
EDGE = {x.strip() for x in os.environ.get("SOC_EDGE", "traefik").replace(";", ",").split(",") if x.strip()}
def run():
if not _docker.available():
return None # socket not mounted -> skip
conts = _docker.get("/containers/json") or []
findings = []
findings, edge_ok = [], []
for c in conts:
name = (c.get("Names") or ["?"])[0].lstrip("/")
cid = c.get("Id", "")[:12]
@@ -25,7 +33,9 @@ def run():
for b in (binds or []):
if b.get("HostIp") in ("0.0.0.0", "::", ""):
exposed.append(f"{b.get('HostIp') or '0.0.0.0'}:{b.get('HostPort')}->{port}")
if exposed:
if exposed and name in EDGE:
edge_ok.append(f"{name} ({'; '.join(exposed)})") # the edge — public by design
elif exposed:
findings.append(finding(
f"drift-bind-{name}", "high", f"{name} publishes ports on all interfaces",
host=name, evidence="; ".join(exposed),
@@ -47,8 +57,11 @@ def run():
impact=["the container can control the host's Docker = host root"],
fix=["mount it :ro, or put a scoped socket-proxy in front"]))
good = [f"edge {e} binds 0.0.0.0:80/443 by design (allowed)" for e in edge_ok]
if not findings and not good:
good.append("No 0.0.0.0 binds, privileged, or rw-socket containers")
return {
"scope": f"{len(conts)} container(s)",
"findings": findings,
"good": [] if findings else ["No 0.0.0.0 binds, privileged, or rw-socket containers"],
"good": good,
}
+64 -15
View File
@@ -1,8 +1,16 @@
"""Container-CVE source: Trivy-scan running images, reporting only FIXABLE HIGH/CRITICAL CVEs.
"""Container-CVE source: Trivy-scan running images for FIXABLE HIGH/CRITICAL CVEs,
and — critically — label each with an UPDATE STATUS so the report distinguishes
what's yours to fix from what's the maintainer's:
`--ignore-unfixed` is the whole point: a CVE with no available patch isn't a to-do item,
it's noise. We report only vulns that have a fix, grouped by package with the version to
bump to — so each finding is a short, actionable list instead of a wall of CVE IDs.
[yours] git.skui.io/* image -> bump deps in its repo + rebuild (CI). Actionable.
[update] third-party, a NEWER image is published -> pull + recreate. Actionable.
[upstream] third-party, already on the latest published image -> clears only when
the maintainer rebuilds. NOT actionable here; re-pull periodically.
"Fixable" (Trivy --ignore-unfixed) only means a patched package version EXISTS — not
that you can apply it. For an image you don't build and already run :latest of, the
"bump X / rebuild base" advice is the maintainer's, not yours. The status makes that
explicit, and actionable findings sort above the can't-do-anything ones.
"""
import json
import subprocess
@@ -11,6 +19,9 @@ from soc import finding
from . import _docker
OWN_PREFIX = "git.skui.io/"
STATUS_RANK = {"yours": 0, "update": 1, "upstream": 2}
def _running_images():
conts = _docker.get("/containers/json") or []
@@ -35,9 +46,42 @@ def _scan(img):
return [v for res in (rep.get("Results") or []) for v in (res.get("Vulnerabilities") or [])]
def _registry_digest(img):
"""The registry's current digest for img's tag, via the daemon (no pull). '' on error."""
try:
d = _docker.get(f"/distribution/{img}/json") or {}
return (d.get("Descriptor") or {}).get("digest", "")
except Exception:
return ""
def _local_digests(img):
try:
info = _docker.get(f"/images/{img}/json") or {}
return [r.split("@")[-1] for r in (info.get("RepoDigests") or [])]
except Exception:
return []
def _classify(img, pkgs):
"""Return (status, fix_lines) — is this image actionable, and how?"""
bump = ", ".join(pkgs[:6]) + ("" if len(pkgs) > 6 else "")
if img.startswith(OWN_PREFIX):
return "yours", [f"YOURS — bump {bump} in this repo, then rebuild (CI)"]
reg = _registry_digest(img)
if reg and reg in _local_digests(img):
return "upstream", [
"UPSTREAM — you already run the latest published image; this clears only when "
f"the maintainer rebuilds (with {bump}). Re-pull periodically; nothing to do here."]
if reg:
return "update", ["UPDATE AVAILABLE — a newer image is published; pull + recreate to get it"]
return "upstream", [
f"UPSTREAM — third-party image; the fix ({bump}) comes from the maintainer's rebuild"]
def run():
if not _docker.available():
return None # socket not mounted -> skip
return None
images = _running_images()
if not images:
return None
@@ -49,7 +93,6 @@ def run():
clean += 1
continue
worst = "crit" if any(v.get("Severity") == "CRITICAL" for v in vulns) else "high"
# Group by package: which to bump, installed -> fixed, and how many CVEs it clears.
pkgs = {}
for v in vulns:
p = v.get("PkgName", "?")
@@ -60,22 +103,28 @@ def run():
evidence = "; ".join(f"{p} {d['inst']}{d['fix']} ({d['n']})" for p, d in top)
if len(pkgs) > 6:
evidence += f"; +{len(pkgs) - 6} more package(s)"
findings.append(finding(
f"cve-{img}", worst,
f"{len(vulns)} fixable HIGH/CRITICAL CVE(s) in {img}", host=img,
evidence=evidence,
impact=[f"{len(vulns)} CVEs with an available patch across {len(pkgs)} package(s)"],
fix=[f"bump: {', '.join(p for p, _ in top)}" + ("" if len(pkgs) > 6 else ""),
f"or pull/rebuild a newer {img.split(':')[0]} base image"]))
findings.sort(key=lambda f: (f["sev"] != "crit", f["title"])) # criticals first
status, fix = _classify(img, [p for p, _ in sorted(pkgs.items(), key=lambda kv: -kv[1]["n"])])
f = finding(
f"cve-{img}", worst,
f"[{status}] {len(vulns)} fixable HIGH/CRITICAL CVE(s) in {img}", host=img,
evidence=evidence,
impact=[f"{len(vulns)} CVEs with a published patch across {len(pkgs)} package(s)"],
fix=fix)
f["_status"] = status
findings.append(f)
# actionable first (yours, then update), then upstream; criticals first within each
sev = {"crit": 0, "high": 1, "med": 2, "low": 3}
findings.sort(key=lambda f: (STATUS_RANK.get(f.pop("_status", "upstream"), 2), sev.get(f["sev"], 9)))
good = []
if clean:
good.append(f"{clean} of {len(images)} image(s) have no fixable HIGH/CRITICAL CVEs")
if not findings and not good:
good.append("No fixable HIGH/CRITICAL CVEs in any running image")
return {
"scope": f"{len(images)} running image(s) — fixable HIGH/CRITICAL only",
"scope": f"{len(images)} running image(s) — fixable HIGH/CRITICAL, tagged yours/upstream/update",
"findings": findings,
"good": good,
}