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CVE-2016-4055
medium
CVSS 6.5
Vulnerability in dos (CVE-2016-4055)
Summary
vulnerability in dos (CVE-2016-4055). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2016-4055** has been found in dos.
Risk of unauthorized operations or information disclosure. CVSS score: 6.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "dos CVE-2016-4055" on the vendor's site.
CVE-2016-4055 (dos) — CWE-400 / CVSS v3 6.5
Attack vector: remote (network-reachable) / 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
**A vulnerability** (CWE-400) exists in dos.
📍 Affected scope
dos — .
🔥 Severity
Severity: Medium (CVSS 6.5/10). 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 'dos' .` 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
-
1Identify exposure identify
grep -r 'dos' . | 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 `dos` を grep し、稼働しているサービス・バージョンを把握する。
-
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
- advisory http://www.openwall.com/lists/oss-security/2016/04/20/11
- advisory http://www.securityfocus.com/bid/95849
- patch http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- patch https://www.tenable.com/security/tns-2019-02
- report https://nodesecurity.io/advisories/55
- web https://lists.apache.org/thread.html/10f0f3aefd51444d1198c65f44ffdf2d78ca3359423dbc1c168c9731%40%3Cdev.flink.apache.org%3E
- web https://lists.apache.org/thread.html/17ff53f7999e74fbe3cc0ceb4e1c3b00b180b7c5afec8e978837bc49%40%3Cuser.flink.apache.org%3E
- web https://lists.apache.org/thread.html/52bafac05ad174000ea465fe275fd3cc7bd5c25535a7631c0bc9bfb2%40%3Cuser.flink.apache.org%3E
- web https://lists.apache.org/thread.html/54df3aeb4239b64b50b356f0ca6f986e3c4ca5b84c515dce077c7854%40%3Cuser.flink.apache.org%3E