CVE-2023-0356
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 · uneditedSOCOMEC MODULYS GP Netvision versions 7.20 and prior lack strong encryption for credentials on HTTP connections, which could result in threat actors obtaining sensitive information.
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 SOCOMEC MODULYS GP Netvision web interface versions 7.20 and prior transmits user credentials over HTTP without strong encryption, allowing network eavesdroppers to intercept and obtain sensitive authentication credentials in cleartext or with weak encoding.
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<= 7.20CVSS 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:3.1/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.
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Identify Netvision web interface accessibilityAttempt to access the Netvision web interface using HTTP (port 80) rather than HTTPS. Check if the device responds on port 80/tcp.Affected if The web interface is reachable over HTTP (unencrypted).
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Determine Netvision firmware versionLog into the Netvision web interface and navigate to the About or System Information section to view the firmware/software version.Affected if The displayed version is 7.20 or lower.
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Verify HTTPS enforcement configurationCheck the web interface security settings or network configuration to determine if HTTPS-only access is enabled or if HTTP is permitted as an alternative.Affected if HTTP access is enabled or HTTPS enforcement is disabled.
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Inspect credential transmission methodUse a network capture tool (such as Wireshark or tcpdump) to capture traffic while authenticating to the Netvision web interface. Analyze the HTTP traffic to see if credentials are sent in cleartext or base64 encoding.Affected if Authentication credentials are transmitted over HTTP without TLS encryption.
Your environment is affected if the Netvision web interface is accessible over HTTP (unencrypted) and transmits authentication credentials without TLS encryption, particularly on versions 7.20 or lower.
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 dataEnable TLS/SSL encryption on the web interface and enforce HTTPS-only access. If a patched version is available from SOCOMEC, upgrade to the fixed release.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-0356 — 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-2023-0356 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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- 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