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CVE-2020-8554 medium CVSS 6.3

Vulnerability in k8s.io/kubernetes (CVE-2020-8554)

Summary

vulnerability in k8s.io/kubernetes (CVE-2020-8554). Risk of unauthorized operations or information disclosure.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2020-8554** has been found in k8s.io/kubernetes. Risk of unauthorized operations or information disclosure. CVSS score: 6.3/10. What to do: apply the vendor's official patched release. If unsure, ask your IT team or search "k8s.io/kubernetes CVE-2020-8554" on the vendor's site.
CVE-2020-8554 (k8s.io/kubernetes) — CWE-283 / CVSS v3 6.3 Attack vector: remote (network-reachable) / no user interaction Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs. Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-283) exists in k8s.io/kubernetes.
📍 Affected scope
k8s.io/kubernetes — .
🔥 Severity
Severity: Medium (CVSS 6.3/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'k8s.io/kubernetes' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response Actions (7 steps)

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'k8s.io/kubernetes' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `k8s.io/kubernetes` を grep し、稼働しているサービス・バージョンを把握する。

  2. 7
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。

Affected packages

go k8s.io/kubernetes
[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.22.0"}]}]

References

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