← Back
CVE-2017-17742
Vulnerability in CVE-2017-17742 (CVE-2017-17742)
Summary
vulnerability in CVE-2017-17742 (CVE-2017-17742). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2017-17742** has been found in CVE-2017-17742.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2017-17742 CVE-2017-17742" on the vendor's site.
CVE-2017-17742 (CVE-2017-17742) —
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
**A vulnerability** (unclassified) exists in CVE-2017-17742.
📍 Affected scope
CVE-2017-17742 — .
🔥 Severity
Severity: ?. 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. Audit SBOM/dependencies to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.依存マニフェストで影響コンポーネントを特定する。
-
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.securityfocus.com/bid/103684
- advisory https://access.redhat.com/errata/RHSA-2018:3729
- advisory https://access.redhat.com/errata/RHSA-2018:3730
- advisory https://access.redhat.com/errata/RHSA-2018:3731
- advisory https://access.redhat.com/errata/RHSA-2019:2028
- advisory https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html
- advisory https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html
- advisory https://www.debian.org/security/2018/dsa-4259
- advisory https://www.ruby-lang.org/en/news/2018/03/28/http-response-splitting-in-webrick-cve-2017-17742/
- patch https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/
- patch https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/
- patch https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/
- patch https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/
- web http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- web http://www.securitytracker.com/id/1042004
- web https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- web https://lists.debian.org/debian-lts-announce/2019/12/msg00009.html
- web https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html
- web https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- web https://usn.ubuntu.com/3685-1/