CVE-2017-13699
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 · uneditedAn issue was discovered on MOXA EDS-G512E 5.1 build 16072215 devices. The password encryption method can be retrieved from the firmware. This encryption method is based on a chall value that is sent in cleartext as a POST parameter. An attacker could reverse the password encryption algorithm to retrieve it.
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 MOXA EDS-G512E switch firmware (v5.1 build 16072215) contains a reversible password encryption algorithm that can be extracted. The device sends a cleartext 'chall' value as a POST parameter during authentication, which combined with the extracted firmware encryption method allows attackers to reverse and recover user passwords.
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= 5.1CVSS 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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/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.
-
Identify the device modelAccess the device web interface or use SNMP/SSH to query the device and confirm it is an EDS-G512E switch modelAffected if The device is a Moxa EDS-G512E switch
-
Check the firmware versionNavigate to the web interface System > Firmware or use console/SSH to run 'show system' or similar command to retrieve the firmware versionAffected if Firmware version is 5.1 (build 16072215)
-
Verify web-based authentication is enabledConfirm the device web interface is accessible and authentication is performed via HTTP/HTTPS POST requestsAffected if Web authentication interface is exposed and functional
-
Inspect authentication POST parametersUse a browser developer tool or packet capture to observe the authentication POST request; look for the 'chall' parameter being transmitted in cleartextAffected if The 'chall' parameter is sent as a cleartext POST parameter during login
You are affected if you have a Moxa EDS-G512E switch running firmware version 5.1 with web authentication enabled, as the cleartext 'chall' parameter combined with the reversible encryption in this firmware version allows password recovery.
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 dataApply vendor firmware updates if available; otherwise, implement network segmentation to isolate affected devices and monitor for unauthorized access attempts leveraging this vulnerability.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $10,240.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-13699 — 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-2017-13699 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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