CVE-2020-7847
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 ipTIME NAS product allows an arbitrary file upload vulnerability in the Manage Bulletins/Upload feature, which can be leveraged to gain remote code execution. This issue affects: pTIME NAS 1.4.36.
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 ipTIME NAS 1.4.36 product contains an arbitrary file upload vulnerability in its Manage Bulletins/Upload feature. An attacker can upload malicious files to the server without proper validation, enabling remote code execution.
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< 1.4.36< 1.4.36< 1.4.36< 1.4.36< 1.4.36< 1.4.36< 1.4.36< 1.4.36CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 firmware versionAccess the device web interface or use the command line interface (typically via telnet/ssh if enabled) and locate the firmware version information, usually found in System Settings, Status, or About pages. Alternatively, check the device startup logs or the web interface footer for version numbers.Affected if The installed firmware version is any version prior to 1.4.36 (for example, 1.4.35, 1.4.30, etc.)
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Locate the Manage Bulletins featureLog into the ipTIME NAS web administration panel and navigate through the menu options to find the Manage Bulletins section, which may be under Administration, Management, or similar menu categories.Affected if The Manage Bulletins/Upload feature is present and accessible in the web interface
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Verify the upload functionalityIn the Manage Bulletins section, locate the Upload function used for uploading bulletins or files. Identify whether the upload form accepts file input without visible file type restrictions or validation.Affected if The upload feature accepts file uploads without proper validation controls (such as MIME type checking, file extension filtering, or content-type validation)
The device is affected if it runs firmware version prior to 1.4.36 and has the Manage Bulletins/Upload feature accessible without proper file validation controls.
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 data1.4.36
Apply vendor patches when available; otherwise, disable the Manage Bulletins/Upload feature until a fix can be implemented, and implement strict file type validation and upload directory isolation.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-7847 — 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-2020-7847 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
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