CVE-2013-0142
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 VioStor NVR devices with firmware 4.0.3, and the Surveillance Station Pro component in QNAP NAS, have a hardcoded guest account, which allows remote attackers to obtain web-server login access via unspecified vectors.
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 VioStor NVR devices and Surveillance Station Pro contain a hardcoded guest account with credentials embedded in the firmware, allowing remote attackers to obtain web-server login access without authentication.
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= 4.0.3all versionsall versionsall versionsCVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/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 the QNAP device modelLog into the QNAP admin interface and navigate to System Settings > System > Device Information, or check the product label/sticker on the hardware itselfAffected if The device is a QNAP Viostor NVR, Surveillance Station Pro, or QNAP NAS
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Check firmware versionIn the QNAP admin interface, go to System Settings > System > Firmware Update, or use the Qfinder utility to query the deviceAffected if The firmware version is 4.0.3 for Viostor NVR, or any version for Surveillance Station Pro or QNAP NAS (all versions are affected)
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Locate guest account in administration panelIn the QNAP admin interface, go to Privileges > Users > User Management, or System Administration > User AccountsAffected if A guest account exists and is enabled in the user management panel
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Attempt web interface login with guest credentialsNavigate to the web login page (port 8080 or 443 typically) and attempt to log in using the guest account credentials known to be embedded in the firmwareAffected if Authentication succeeds without requiring modification of the default configuration or additional credentials
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Check for unauthenticated access via guest accountUse a web browser or curl to access QNAP web services endpoints (like /cgi-bin/authLogin.cgi) with guest account credentials and observe if a valid session is returnedAffected if The device returns a valid authentication token or session without rejecting the guest credentials
The environment is affected if the device is a QNAP Viostor NVR, Surveillance Station Pro, or QNAP NAS running any firmware version, and the hardcoded guest account can authenticate to the web interface without being explicitly enabled or created by an administrator.
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 dataDisable or remove any hardcoded guest accounts through the QNAP admin interface, and update to the latest firmware version that removes this vulnerability.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-0142 — 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-2013-0142 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