CVE-2017-8943
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe PUMA PUMATRAC app 3.0.2 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe PUMA PUMATRAC app 3.0.2 for iOS fails to validate X.509 certificates from SSL servers, accepting any certificate presented during TLS handshakes. This allows attackers on the same network to perform man-in-the-middle attacks, intercepting and modifying encrypted traffic between the app and legitimate servers.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 3.0.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed Pumatrac app versionOn the iOS device, go to Settings > General > iPhone Storage (or Apps), find the Pumatrac app, and note the version number displayed. Alternatively, view the app in the App Store to see the installed version.Affected if The displayed version is exactly 3.0.2
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Verify certificate validation behavior (if possible)Use a network proxy tool (such as Burp Suite or mitmproxy) with a self-signed certificate and attempt to intercept traffic from the Pumatrac app. If the app successfully connects without rejecting the invalid certificate, the vulnerability is present.Affected if The app accepts the invalid certificate and allows traffic to flow through the proxy without certificate validation errors
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Check for subsequent patched versionsCheck the App Store for any available updates to the Pumatrac app that may have addressed certificate validation issues.Affected if The currently installed version 3.0.2 has no available patch, and newer versions exist that may have fixed the issue
If the installed Pumatrac app version is exactly 3.0.2 and accepts invalid SSL certificates during MITM testing, the environment is affected by CVE-2017-8943.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement proper SSL/TLS certificate validation in the app, including verification of the certificate chain, hostname validation, and checking against the device's trusted CA store.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,512.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-8943 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2017-8943 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data