Vulnerability in django (CVE-2012-4520)

Summary

vulnerability in django (CVE-2012-4520). Risk of unauthorized operations or information disclosure. Exploitable via `Host header`. Mitigation: upgrade to `9305c0e12d43c4df999c3301a1f0c742264a657e, b45c377f8f488955e0c7069cad3f3dd21910b071, 92d3430f12171f16f566c9050c40feefb830a4a3, 1.3.4, 1.4.2` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2012-4520** has been found in django. Attackers can target a specific entry point like `Host header` over the network to misuse the product. Risk of unauthorized operations or information disclosure. CVSS score: ?/10. What to do: upgrade django to **9305c0e12d43c4df999c3301a1f0c742264a657e, b45c377f8f488955e0c7069cad3f3dd21910b071, 92d3430f12171f16f566c9050c40feefb830a4a3, 1.3.4, 1.4.2** or later. If unsure, ask your IT team or search "django CVE-2012-4520" on the vendor's site.

CVE-2012-4520 (django) — Attack surface: Host header Patched: `9305c0e12d43c4df999c3301a1f0c742264a657e, b45c377f8f488955e0c7069cad3f3dd21910b071, 92d3430f12171f16f566c9050c40feefb830a4a3, 1.3.4, 1.4.2` — 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** (unclassified) exists in django. Attackers reach the vulnerable code path via `Host header` without authentication.

📍 Affected scope

django — . Attack surface: Host header.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure

🔧 How to fix

Update to **9305c0e12d43c4df999c3301a1f0c742264a657e, b45c377f8f488955e0c7069cad3f3dd21910b071, 92d3430f12171f16f566c9050c40feefb830a4a3, 1.3.4, 1.4.2**.

🛡️ 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' .` 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
Identify exposure identify
```
grep -r 'django' . | 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` を grep し、稼働しているサービス・バージョンを把握する。
6
Apply patch patch
```
Upgrade django to 9305c0e12d43c4df999c3301a1f0c742264a657e, b45c377f8f488955e0c7069cad3f3dd21910b071, 92d3430f12171f16f566c9050c40feefb830a4a3, 1.3.4, 1.4.2
```
ステージング環境で 9305c0e12d43c4df999c3301a1f0c742264a657e, b45c377f8f488955e0c7069cad3f3dd21910b071, 92d3430f12171f16f566c9050c40feefb830a4a3, 1.3.4, 1.4.2 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。
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

PyPI django

[{"repo":"https:\/\/github.com\/django\/django","type":"GIT","events":[{"introduced":"0"},{"fixed":"9305c0e12d43c4df999c3301a1f0c742264a657e"},{"fixed":"b45c377f8f488955e0c7069cad3f3dd21910b071"},{"fixed":"92d3430f12171f16f566c9050c40feefb830a4a3"}]},{"type":"ECOSYSTEM","events":[{"introduced":"1.3"},{"fixed":"1.3.4"},{"introduced":"1.4"},{"fixed":"1.4.2"}]}]