CVE-2023-33364
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 · uneditedAn OS Command injection vulnerability exists in Suprema BioStar 2 before V2.9.1, which allows authenticated users to execute arbitrary OS commands on the BioStar 2 server.
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 confidenceOS command injection vulnerability in Suprema BioStar 2 access control software versions before V2.9.1 allows authenticated users to execute arbitrary operating system commands on the server hosting the BioStar 2 application, potentially leading to complete system compromise.
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< 2.9.1CVSS 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
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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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Locate installed BioStar 2 versionLog into the BioStar 2 web interface and navigate to the Settings or About section to view the software version. Alternatively, check the BioStar 2 server for version information in the application installation directory or configuration files.Affected if Displayed version number is less than 2.9.1
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Verify version via API endpointIf you have API access, query the BioStar 2 API endpoint that returns version information, or examine server-side logs for the version string.Affected if Returned or logged version is < 2.9.1
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Confirm web interface accessibilityDetermine whether the BioStar 2 web interface is reachable from the network where potential attackers could authenticate.Affected if The interface is accessible over the network and accepts user authentication
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Check if authentication is enabledVerify that user authentication is active on the BioStar 2 system by confirming the login page loads and user accounts exist in the system.Affected if Authentication mechanism is enabled and functional, allowing user login
Environment is affected if BioStar 2 version is identified as less than 2.9.1 and the web interface is accessible with valid credentials.
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.
dbcve · scoped2.9.1
Upgrade BioStar 2 to version V2.9.1 or later. Additionally, enforce least-privilege access for admin accounts and monitor for suspicious command execution activity.
Biostar 2 version 2.9.1
- Download Biostar 2 version 2.9.1 or later from the official Suprema support portal (kb.supremainc.com)
- Review the release notes and migration guide for version 2.9.1
- Ensure you have a complete backup of the current BioStar 2 installation and database
- Stop the BioStar 2 server services before upgrading
- Install Biostar 2 version 2.9.1 using the official upgrade procedure
- Verify the installation completed successfully
- Restart the BioStar 2 server services
- Confirm the web interface is accessible and the version shows 2.9.1 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-33364 — 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-2023-33364 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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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.
- 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