Vulnerability in CASL II simulator (CVE-2017-2220)
Summary
Vulnerability in CASL II simulator (CVE-2017-2220). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
Untrusted search path vulnerability in Installer of CASL II simulator (self-extract format) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2017-2220 has been found in CASL II simulator.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CASL II simulator CVE-2017-2220" on the vendor's site.
CVE-2017-2220 (CASL II simulator) — CWE-426 / CVSS v3 7.8
Attack vector: local / 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.
A vulnerability (CWE-426) exists in CASL II simulator.
Check the vendor advisory for the affected versions of CASL II simulator.
Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで CASL II simulator を使っているサービスとバージョンを洗い出す。
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2Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- advisory jvn.jp
- patch jitec.ipa.go.jp