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CVE-2024-21733
Vulnerability in org.apache.tomcat:tomcat-coyote (CVE-2024-21733)
Summary
vulnerability in org.apache.tomcat:tomcat-coyote (CVE-2024-21733). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `8.5.64` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2024-21733** has been found in org.apache.tomcat:tomcat-coyote.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade org.apache.tomcat:tomcat-coyote to **8.5.64** or later.
If unsure, ask your IT team or search "org.apache.tomcat:tomcat-coyote CVE-2024-21733" on the vendor's site.
CVE-2024-21733 (org.apache.tomcat:tomcat-coyote) — CWE-209 /
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: `8.5.64` — 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-209) exists in org.apache.tomcat:tomcat-coyote.
📍 Affected scope
org.apache.tomcat:tomcat-coyote — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **8.5.64**.
🛡️ 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 'org.apache.tomcat:tomcat-coyote' .` 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 'org.apache.tomcat:tomcat-coyote' . | 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 `org.apache.tomcat:tomcat-coyote` 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 org.apache.tomcat:tomcat-coyote to 8.5.64ステージング環境で 8.5.64 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
maven
org.apache.tomcat:tomcat-coyote
[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.7"},{"fixed":"8.5.64"}]}]
maven
org.apache.tomcat.embed:tomcat-embed-core
[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0-M11"},{"fixed":"9.0.44"}]}]
maven
org.apache.tomcat.experimental:tomcat-embed-programmatic
[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.43"},{"fixed":"9.0.44"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2024-21733
- package https://github.com/apache/tomcat
- web https://lists.apache.org/thread/h9bjqdd0odj6lhs2o96qgowcc6hb0cfz
- web http://www.openwall.com/lists/oss-security/2024/01/19/2
- web http://packetstormsecurity.com/files/176951/Apache-Tomcat-8.5.63-9.0.43-HTTP-Response-Smuggling.html
- web https://security.netapp.com/advisory/ntap-20240216-0005
- web https://github.com/apache/tomcat/commit/86ccc43940861703c2be96a5f35384407522125a
- web https://github.com/apache/tomcat/commit/ce4b154e7b48f66bd98858626347747cd2514311
- web https://tomcat.apache.org/security-8.html
- web https://tomcat.apache.org/security-9.html
- web https://lists.debian.org/debian-lts-announce/2025/01/msg00009.html
- web https://github.com/advisories/GHSA-f4qf-m5gf-8jm8