CVE-2023-48185
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 · uneditedDirectory Traversal vulnerability in TerraMaster v.s1.0 through v.2.295 allows a remote attacker to obtain sensitive information via a crafted GET request.
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 confidenceDirectory traversal vulnerability in TerraMaster NAS devices (v.s1.0 through v.2.295) allows remote attackers to access sensitive files outside the web root by using '../' sequences in crafted GET requests. The vulnerability has a CVSS 7.5 due to the high confidentiality impact from potential exposure of system files, configurations, and credentials.
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>= 1.0, <= 2.295CVSS 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 TerraMaster NAS deviceCheck if the target system is a TerraMaster NAS by accessing the login page at / or /include/ajax.php?opt=get_conf and looking for TerraMaster branding, or check the HTTP server bannerAffected if The device is a TerraMaster NAS with web interface present
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Check firmware versionAccess the admin interface and navigate to 'General' > 'About' > 'Firmware Version' to view the installed version, or use the API endpoint /include/ajax.php?opt=get_conf to retrieve version information programmaticallyAffected if The installed firmware version is between 1.0 and 2.295 inclusive
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Verify web service is accessibleAttempt to access the TerraMaster web interface over HTTP/HTTPS on ports 80 or 443 to confirm the vulnerable service is runningAffected if The web administrative interface is reachable from the network being assessed
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Check for directory traversal mitigationReview any WAF, reverse proxy, or firewall configurations to determine if '../' sequences are being filtered, blocked, or logged in incoming HTTP requestsAffected if No traversal protection is in place AND the web interface is externally accessible
A TerraMaster NAS device running firmware version 2.295 or lower with an exposed web interface and no traversal filtering is vulnerable to CVE-2023-48185
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 if available; alternatively, implement a WAF or reverse proxy rule to filter or block directory traversal sequences ('../') in HTTP requests and restrict administrative interface access to trusted networks.
- Consultation4.0 h
- Implementation8.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-48185 — 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-2023-48185 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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