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CVE-2022-42731
Vulnerability in django-mfa2 (CVE-2022-42731)
Summary
vulnerability in django-mfa2 (CVE-2022-42731). Data can be tampered with by attackers. Mitigation: upgrade to `2.6.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2022-42731** has been found in django-mfa2.
Data can be tampered with by attackers. CVSS score: ?/10.
What to do: upgrade django-mfa2 to **2.6.1** or later.
If unsure, ask your IT team or search "django-mfa2 CVE-2022-42731" on the vendor's site.
CVE-2022-42731 (django-mfa2) — CWE-294 /
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: `2.6.1` — apply immediately
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-294) exists in django-mfa2.
📍 Affected scope
django-mfa2 — .
🔥 Severity
Severity: ?. Data can be tampered with by attackers
🔧 How to fix
Update to **2.6.1**.
🛡️ 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 'django-mfa2' .` 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 'django-mfa2' . | 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 `django-mfa2` 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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6Apply patch patch
Upgrade django-mfa2 to 2.6.1ステージング環境で 2.6.1 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
PyPI
django-mfa2
[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.0"},{"fixed":"2.6.1"}]}]
References
- advisory https://github.com/advisories/GHSA-vw39-2wj9-4q86
- advisory https://nvd.nist.gov/vuln/detail/CVE-2022-42731
- package https://github.com/mkalioby/django-mfa2
- web https://github.com/mkalioby/django-mfa2/releases/tag/v2.6.1-release
- web https://github.com/mkalioby/django-mfa2/releases/tag/v2.5.1-release
- web https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58
- web https://github.com/mkalioby/django-mfa2/commit/54db5a513bcafa97a36e9f6dfa31d3c61fa8217b
- web https://github.com/mkalioby/django-mfa2/commit/5fbb505e98ecdd409330a5c336ad5ec49631b0db
- web https://github.com/pypa/advisory-database/tree/main/vulns/django-mfa2/PYSEC-2022-303.yaml