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CVE-2021-32648
CISA KEV
high
[KEV] Authentication Bypass in October cms october/system (CVE-2021-32648)
Summary
authentication bypass in October cms october/system (CVE-2021-32648). Confidential information can be exposed externally. Listed in CISA KEV — actively exploited. Mitigation: upgrade to `1.1.5` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2021-32648** has been found in October cms october/system.
Confidential information can be exposed externally. CVSS score: ?/10.
Note: CISA has officially confirmed this is **actively exploited in the wild**. Treat it with elevated urgency.
What to do: upgrade October cms october/system to **1.1.5** or later.
If unsure, ask your IT team or search "October cms october/system CVE-2021-32648" on the vendor's site.
CVE-2021-32648 (October cms october/system) — CWE-287 /
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: `1.1.5` — apply immediately
Listed in CISA KEV — actively exploited, treat as top priority.
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
**authentication bypass** (CWE-287) exists in October cms october/system.
📍 Affected scope
October cms october/system — .
🔥 Severity
Severity: High. Confidential information can be exposed externally **Listed in CISA KEV** — actively exploited in the wild, treat as top priority.
🔧 How to fix
Update to **1.1.5**.
🛡️ 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 'october/system' .` 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
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1Identify exposure identify
grep -r 'october/system' . | 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 `october/system` を grep し、稼働しているサービス・バージョンを把握する。
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4Consider incident declaration escalate
Notify SOC / on-callCISA KEV登録済 = 実環境で悪用が観測されている。Step 3 で兆候があればインシデント対応宣言、無くてもパッチ適用までWAF強化を最優先で。
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6Apply patch patch
Upgrade october/system to 1.1.5ステージング環境で 1.1.5 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-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
Packagist
october/system
[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.1"},{"fixed":"1.1.5"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2021-32648
- package https://github.com/octobercms/october
- web https://github.com/octobercms/october/security/advisories/GHSA-mxr5-mc97-63rc
- web https://github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374
- web https://github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9
- web https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-32648