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CVE-2017-18635
Vulnerability in CVE-2017-18635 (CVE-2017-18635)
Summary
vulnerability in CVE-2017-18635 (CVE-2017-18635). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2017-18635** has been found in CVE-2017-18635.
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-2017-18635 CVE-2017-18635" on the vendor's site.
CVE-2017-18635 (CVE-2017-18635) —
Attack vector: remote (network-reachable) / unauthenticated
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-2017-18635.
📍 Affected scope
CVE-2017-18635 — .
🔥 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 https://access.redhat.com/errata/RHSA-2020:0754
- advisory https://github.com/ShielderSec/cve-2017-18635
- advisory https://github.com/novnc/noVNC/releases/tag/v0.6.2
- advisory https://lists.debian.org/debian-lts-announce/2019/10/msg00004.html
- advisory https://lists.debian.org/debian-lts-announce/2021/12/msg00024.html
- advisory https://usn.ubuntu.com/4522-1/
- patch https://github.com/novnc/noVNC/commit/6048299a138e078aed210f163111698c8c526a13#diff-286f7dc7b881e942e97cd50c10898f03L534
- patch https://github.com/novnc/noVNC/issues/748
- report https://bugs.launchpad.net/horizon/+bug/1656435
- report https://www.shielder.it/blog/exploiting-an-old-novnc-xss-cve-2017-18635-in-openstack/