CVE-2022-34824
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 · uneditedWeak File and Folder Permissions vulnerability in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 5.0 SingleServerSafe for Windows and earlier allows a remote unauthenticated attacker to overwrite existing files on the file system and to potentially 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 confidenceCLUSTERPRO and EXPRESSCLUSTER X 5.0 for Windows contain weak file and folder permissions that allow a remote unauthenticated attacker to overwrite existing files on the filesystem. This can lead to arbitrary code execution. The vulnerability stems from improper NTFS permission configurations on the application directories.
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<= 5.0<= 5.0CVSS 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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Confirm Expresscluster X installationLocate the EXPRESSCLUSTER installation directory - typically found under C:\Program Files\NEC\EXPRESSCLUSTER or C:\Program Files (x86)\NEC\EXPRESSCLUSTER. Verify the presence of Clusterpro or Expresscluster executables and configuration files.Affected if The product is installed in the default or custom location on the system.
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Check installed versionOpen the Windows Registry under HKLM\SOFTWARE\NEC\EXPRESSCLUSTER or HKLM\SOFTWARE\Wow6432Node\NEC\EXPRESSCLUSTER and retrieve the 'Version' value, or right-click the main executable and view Properties > Details for the version number.Affected if The installed version is 5.0 or any version lower than 5.0.
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Inspect NTFS permissions on installation folderRight-click the main EXPRESSCLUSTER installation folder, select Properties > Security tab. Review the entries under 'Group or user names' and check the 'Write' permission column for each account.Affected if Any user account, non-service account, or Everyone/Users group has Write or Modify permissions granted beyond what is required for operation.
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Verify service account permissionsIn the Security tab of the installation folder, identify which accounts are listed as having Write access. Cross-reference these against the designated service accounts that actually run EXPRESSCLUSTER services.Affected if Accounts that do not correspond to authorized system or service accounts have Write or Full Control permissions on the installation directory.
A system is affected if EXPRESSCLUSTER X or Singleserversafe version 5.0 or lower is installed and the installation directories grant Write permissions to unauthorized or overly broad user groups.
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 dataCorrect NTFS file and folder permissions on the CLUSTERPRO/EXPRESSCLUSTER installation directories to follow least-privilege principles, restricting write access to only authorized system and service accounts. Verify cluster functionality after permission changes.
- Consultation6.0 h
- Implementation4.0 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-2022-34824 — 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-2022-34824 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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