CVE-2017-7630
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 · uneditedQNAP QTS 4.2.6 build 20171026, QTS 4.3.3 build 20170727 and earlier allows remote attackers to obtain potentially sensitive information (firmware version and running services) via a request to sysinfoReq.cgi.
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 confidenceQNAP QTS firmware versions 4.2.6 (build 20171026) and 4.3.3 (build 20170727) and earlier contain an information disclosure vulnerability in the sysinfoReq.cgi web script. The endpoint returns sensitive system information including firmware version and running services to unauthenticated remote attackers, enabling reconnaissance for further attacks.
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= 4.2.6= 4.3.3CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 QNAP QTS firmware versionLog into the QNAP web administration interface and view the version information typically found in Control Panel > System > System Status, or access the device via SSH and run the command to display firmware versionAffected if The displayed firmware version is 4.2.6 (build 20171026) or earlier, or 4.3.3 (build 20170727) or earlier
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Identify if sysinfoReq.cgi is reachableSend an HTTP GET request to the sysinfoReq.cgi endpoint on the QNAP device (for example: http://[device-ip]/cgi-bin/sysinfoReq.cgi) without providing any authentication credentialsAffected if The endpoint responds with an HTTP 200 status code and returns system information without requiring login credentials
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Verify information disclosure contentExamine the response from the sysinfoReq.cgi endpoint and check if it contains sensitive system details such as firmware version, build number, or list of running services without authenticationAffected if The response includes firmware version details, build numbers, or service information that should only be visible to authenticated administrators
A system is affected if it is running QNAP QTS version 4.2.6 build 20171026 or earlier, or 4.3.3 build 20170727 or earlier, AND the sysinfoReq.cgi endpoint is accessible without authentication and returns sensitive system information.
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 dataUpgrade QNAP QTS firmware to version 4.2.6 build 20171027 or later, or 4.3.3 build 20170728 or later. If upgrading is not immediately possible, restrict access to the web administration interface to trusted networks or VPN.
- Consultation3.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-7630 — 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-2017-7630 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