CVE-2022-47526
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 · uneditedFox-IT DataDiode (aka Fox DataDiode) 3.4.3 suffers from a path traversal vulnerability with resultant arbitrary writing of files. A remote attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the downstream node user. Exploitation of this issue does not require user interaction.
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 confidenceFox-IT DataDiode version 3.4.3 contains a path traversal vulnerability that allows remote attackers to write arbitrary files to the filesystem. By exploiting this file write capability, an attacker can achieve arbitrary code execution in the context of the downstream node user without any user interaction.
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= 3.4.3CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 DataDiode firmware versionAccess the DataDiode management interface or check the system firmware version through the vendor-provided administration console or CLI tool. Look for a version display or run 'show version' or similar command as documented in the Fox-IT administration guide.Affected if The installed firmware version is exactly 3.4.3.
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Verify management interface network exposureCheck network configuration or firewall rules to determine if the DataDiode management interface (typically ports 443, 80, or vendor-specific management ports) is accessible from untrusted networks or the internet. Use 'netstat -an' or review firewall configuration files.Affected if The management interface is exposed to untrusted networks without proper network segmentation or access controls.
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Inspect for unauthorized file creationsReview the filesystem for unexpected files in writable directories, particularly in web root directories (/var/www, /www, or similar), system bin directories, or configuration directories. Use 'find' commands or compare file hashes against known-good baselines.Affected if Unexpected or unauthorized files exist in directories that should not be writable by the DataDiode application.
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Examine authentication and authorization configurationReview the DataDiode security configuration settings related to file write operations, upload functionality, and access controls. Check if the file write capability is exposed without proper authentication enforcement.Affected if File write or upload features are enabled without requiring strong authentication or are accessible to low-privilege users.
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Review system logs for exploitation indicatorsExamine DataDiode system logs, web server logs, and security logs for patterns indicative of path traversal attempts (such as '../', '..\', or unusual file write operations). Check logs for commands that may indicate code execution.Affected if Logs contain path traversal patterns or evidence of unauthorized file writes or script executions.
You are affected if your DataDiode firmware is exactly version 3.4.3 and the management interface or file write functionality is accessible to remote attackers.
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 the vendor patch or upgrade to a patched version of Fox DataDiode. If immediate patching is not possible, implement network segmentation and restrict unauthorized access to the DataDiode management interfaces to reduce attack surface.
- Consultation4.0 h
- Implementation4.0 h
- Testing4.0 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 $3,968.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-47526 — 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-2022-47526 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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