CVE-2017-2220 — Untrusted search path vulnerability in Installer of CASL II simulator (self-extr

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.

01What is this vulnerability?

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.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-07-07T13:29:00.677
• Last modified: 2026-05-13T00:24:29.033

09References

• jvn.jp — https://jvn.jp/en/jp/JVN67305782/index.html
• www.jitec.ipa.go.jp — https://www.jitec.ipa.go.jp/1_20casl2/casl2dl_2017_01.html
• jvn.jp — https://jvn.jp/en/jp/JVN67305782/index.html
• www.jitec.ipa.go.jp — https://www.jitec.ipa.go.jp/1_20casl2/casl2dl_2017_01.html