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CVE-2004-2320
medium
CVSS 5.3
Information Disclosure in express (CVE-2004-2320)
Summary
vulnerability in express (CVE-2004-2320). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2004-2320** has been found in express.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "express CVE-2004-2320" on the vendor's site.
CVE-2004-2320 (express) — CWE-200 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / 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
**information disclosure** (CWE-200) exists in express.
📍 Affected scope
express — .
🔥 Severity
Severity: Medium (CVSS 5.3/10). 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 'express' .` 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 'express' . | 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 `express` 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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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。
References
- web http://dev2dev.bea.com/pub/advisory/68
- web http://secunia.com/advisories/10726
- web http://www.kb.cert.org/vuls/id/867593
- web http://www.osvdb.org/3726
- web http://www.securityfocus.com/bid/9506
- web http://www.securitytracker.com/alerts/2004/Jan/1008866.html
- web https://exchange.xforce.ibmcloud.com/vulnerabilities/14959
- web https://nvd.nist.gov/vuln/detail/CVE-2004-2320
- web https://github.com/advisories/GHSA-j9r3-w4r5-872h