CVE-2017-9583 — The "Charlevoix State Bank" by Charlevoix State Bank app 3

The "Charlevoix State Bank" by Charlevoix State Bank app 3.0.1 -- aka charlevoix-state-bank/id1128963717 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted

01What is this vulnerability?

The "Charlevoix State Bank" by Charlevoix State Bank app 3.0.1 -- aka charlevoix-state-bank/id1128963717 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

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: 2017-06-16T12:29:00.973
• Last modified: 2026-05-13T00:24:29.033

09References

• medium.com — https://medium.com/%40chronic_9612/advisory-44-credit-union-apps-for-ios-may-all…
• medium.com — https://medium.com/%40chronic_9612/advisory-44-credit-union-apps-for-ios-may-all…