CVE-2022-25389
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 · uneditedDCN Firewall DCME-520 was discovered to contain an arbitrary file download vulnerability via the path parameter in the file /audit/log/log_management.php.
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 · moderate confidenceDCN Firewall DCME-520 has an arbitrary file download vulnerability in /audit/log/log_management.php where the path parameter is not properly validated, allowing unauthenticated attackers to download any accessible file from the filesystem.
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 dataall 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
- 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 the device modelAccess the device's web interface or check the system information page. Look for 'DCME-520' or 'DCN Firewall' in the device identification or about page.Affected if The device is a DCN Firewall DCME-520 (all versions are affected)
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Check if the management interface is network accessibleVerify whether the web-based management interface (ports 80/443 or custom HTTP port) is reachable from the network. Attempt to access the device's IP address in a browser.Affected if The management interface is exposed to untrusted networks (attackers would have network access)
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Verify the vulnerable endpoint existsSend an HTTP GET request to /audit/log/log_management.php on the device. For example: GET /audit/log/log_management.php?path=testAffected if The endpoint responds (status 200 or error), indicating the vulnerable script exists on the device
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Test for path traversal vulnerabilitySend a request with path parameter containing traversal sequences such as /audit/log/log_management.php?path=../../../../etc/passwd or ?path=../../boot.iniAffected if The response returns content from files outside the intended directory, confirming the arbitrary file download vulnerability
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Check if authentication is requiredAttempt to access /audit/log/log_management.php without providing any login credentials or session cookieAffected if The endpoint is accessible without authentication, confirming the unauthenticated attack vector
If the device is a DCN Firewall DCME-520 with an accessible /audit/log/log_management.php endpoint that allows path traversal without authentication, the environment is affected by CVE-2022-25389.
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 vendor firmware patch if available; otherwise, implement strict input validation on the path parameter or restrict network access to the management interface.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-25389 — 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-2022-25389 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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