CVE-2020-23584
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 · uneditedUnauthenticated remote code execution in OPTILINK OP-XT71000N, Hardware Version: V2.2 occurs when the attacker passes arbitrary commands with IP-ADDRESS using " | " to execute commands on " /diag_tracert_admin.asp " in the "PingTest" parameter that leads to command execution.
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 confidenceUnauthenticated command injection in OPTILINK OP-XT71000N router allows remote attackers to execute arbitrary OS commands via the PingTest parameter in /diag_tracert_admin.asp by injecting shell commands using the pipe (|) operator.
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= 3.3.1-191028CVSS 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 device modelAccess the router's web interface and look for the model name in the header, footer, or status page, or check the label on the device hardware itselfAffected if Device is not an OPTILINK OP-XT71000N router
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Check firmware versionIn the router web interface, navigate to the status or firmware upgrade page to view the installed firmware version, or check via telnet/SSH if availableAffected if Firmware version is 3.3.1-191028 or any version of this specific model since the vulnerability exists in this firmware
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Verify vulnerable endpoint existsAttempt to access http://<router-ip>/diag_tracert_admin.asp in a web browser or via curl. If the page loads, the diagnostic feature is presentAffected if The /diag_tracert_admin.asp page is accessible and accepts a PingTest parameter
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Check network exposureDetermine if the router's management web interface (port 80/443) is exposed to the internet by checking your firewall rules or external port scansAffected if The router's management interface is directly reachable from the internet without VPN or firewall restriction
You are affected if you have an OPTILINK OP-XT71000N router with firmware 3.3.1-191028 and the diagnostic web interface at /diag_tracert_admin.asp is accessible, especially from untrusted networks.
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 update if available; otherwise restrict network access to the device's management interface or replace the device since end-of-life consumer routers often lack security patches.
- Consultation2.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-23584 — 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-2020-23584 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
- No spam, self-promotion, credentials, or personal data