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OS Command InjectionWeakness · CWE-78

CVE-2024-5421

HIGH · 8.7 CVSS v4.0 Published 2024-06-04
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
93/100
Remediation priority · Urgent
Remotely reachable Zero-click

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 · unedited
Missing input validation and OS command integration of the input in the utnserver Pro, utnserver ProMAX, INU-100 web-interface allows authenticated command injection.This issue affects utnserver Pro, utnserver ProMAX, INU-100 version 20.1.22 and below.

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 confidence

Authenticated command injection vulnerability in the web interface of utnserver Pro, utnserver ProMAX, and INU-100 devices. Missing input validation allows authenticated attackers to inject and execute arbitrary OS commands through unsanitized user input being passed to system calls.

MitigationUpdate device firmware to a version above 20.1.22 which should include proper input validation. Until patched, restrict network access to the web interface and enforce strong authentication credentials to reduce attack surface.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS 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
Low
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify your device model
    Locate the device label or access the web interface to confirm the model is utnserver Pro, utnserver ProMAX, or INU-100
    Affected if The device is one of these three models
  2. Check the installed firmware version
    Access the device web interface settings or use the device administration console to view the firmware version number
    Affected if The firmware version is below 20.1.22 (the fixed version)
  3. Verify web interface accessibility
    Determine if the device web interface is accessible from untrusted networks or the internet
    Affected if The web interface is exposed to networks where untrusted users can reach it
  4. Assess authentication status
    Review whether the web interface uses default credentials or weak passwords
    Affected if Default credentials are unchanged or weak authentication is configured, making authenticated access easier for attackers

You are affected if you own a utnserver Pro, ProMAX, or INU-100 device running firmware below version 20.1.22 with an accessible web interface that accepts your credentials.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update device firmware to a version above 20.1.22 which should include proper input validation. Until patched, restrict network access to the web interface and enforce strong authentication credentials to reduce attack surface.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,120
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-5421 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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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