CVE-2023-52324
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 unrestricted file upload vulnerability in Trend Micro Apex Central could allow a remote attacker to create arbitrary files on affected installations. Please note: although authentication is required to exploit this vulnerability, this vulnerability could be exploited when the attacker has any valid set of credentials. Also, this vulnerability could be potentially used in combination with another vulnerability to execute arbitrary code.
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 confidenceThis is an unrestricted file upload vulnerability in Trend Micro Apex Central that allows an authenticated remote attacker to create arbitrary files on the affected system. Although authentication is required, any valid set of credentials can be used, significantly lowering the exploitation门槛. The ability to write arbitrary files could potentially be chained with other vulnerabilities to achieve remote code execution.
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= 2019CVSS 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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Identify Apex Central versionCheck the installed version of Trend Micro Apex Central through the product's web console (typically found in Help > About) or by querying the product's registry or configuration filesAffected if The installed version is 2019 (exactly) and authentication is enabled for the web console
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Verify authentication is requiredConfirm that the Apex Central web console requires authentication. Try accessing the login page and verify session tokens are enforced for file upload functionalityAffected if Any valid user credentials can access the file upload feature, meaning the authentication requirement exists but the upload functionality has no additional restrictions beyond basic login
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Locate file upload functionalityIdentify if the report import, backup/restore, or certificate upload features are accessible through the web interfaceAffected if File upload features are accessible to authenticated users (any valid user role)
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Inspect web root and upload directoriesExamine the directories where uploaded files are stored (typically within the Apex Central installation directory or designated upload folders) for unexpected or suspicious filesAffected if Arbitrary files exist in upload directories that do not match expected upload patterns or contain executable content (scripts, executables)
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Review server logs for upload activityCheck Apex Central server logs and IIS/Apache logs for POST requests to file upload endpoints, focusing on requests creating unexpected file typesAffected if Logs show file uploads to non-standard locations or creation of files with extensions like .asp, .aspx, .jsp, .php, .exe, or .dll
You are affected if you are running Apex Central version 2019 and the file upload functionality is accessible to authenticated users without additional file type restrictions.
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 dataImplement strict server-side file validation including file type whitelisting, content inspection, filename sanitization, and store uploads outside the web root; apply vendor patches when available. Restrict upload functionality to necessary file types only.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,504.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-52324 — 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-2023-52324 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