CVE-2021-33523
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 · uneditedMashZone NextGen through 10.7 GA allows a remote authenticated user, with access to the admin console, to upload a new JDBC driver that can execute arbitrary commands on the underlying host. This occurs in com.idsscheer.ppmmashup.business.jdbc.DriverUploadController.
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 confidenceMashZone NextGen through version 10.7 GA contains an authenticated remote code execution vulnerability in the DriverUploadController (com.idsscheer.ppmmashup.business.jdbc.DriverUploadController). An authenticated user with admin console access can upload a malicious JDBC driver that executes arbitrary commands on the underlying host, 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<= 10.7CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/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 MashZone NextGen installation and versionLocate the MashZone NextGen installation directory and check the version file (typically found in the product's versioninfo or release notes). Common paths include /opt/softwareag/MashZoneNextGen/ or C:\SoftwareAG\MashZoneNextGen\. Run: ls -la <install_dir>/version or check the product's about page in the admin console.Affected if The installed version is 10.7 or any version prior to 10.7, indicating the vulnerable component is present.
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Verify admin console accessibilityCheck if the MashZone admin console is accessible over the network. Attempt to access the console URL (typically http(s)://<host>:8080/mashzone/ or similar). Review web server configuration and authentication settings to confirm admin console access controls.Affected if The admin console is exposed and reachable, meaning an authenticated attacker could potentially reach the vulnerable DriverUploadController endpoint.
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Confirm DriverUploadController endpoint existsInspect the deployed MashZone application WAR files or exploded directory for the presence of DriverUploadController class (com.idsscheer.ppmmashup.business.jdbc.DriverUploadController). Check the web.xml deployment descriptor for servlet mappings related to driver upload functionality.Affected if The DriverUploadController class is present in the deployed application, enabling the vulnerable upload functionality.
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Review JDBC driver upload logs and artifactsExamine MashZone NextGen logs (typically in <install_dir>/profiles/MashZone/profile/logs/ or similar) for entries related to JDBC driver uploads, DriverUpload, or class loading. Search for recent uploads in the upload directories or temporary directories.Affected if Recent JDBC driver uploads are present that were not explicitly authorized or expected, indicating potential exploitation activity.
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Check for web shells or malicious artifactsSearch the web application directory for unexpected .jsp, .class, or .jar files, particularly in publicly accessible paths. Review file system for newly created executables or scripts in system temp directories or application working directories.Affected if Unexpected files are found that were not part of the original MashZone installation, suggesting possible RCE payload deployment.
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Audit user accounts with admin privilegesReview MashZone NextGen user administration to identify accounts with admin console access. Check for any unauthorized or unexpected admin accounts created recently.Affected if There are admin accounts beyond those expected or created recently, suggesting an attacker may have gained admin access to exploit the RCE vulnerability.
You are affected if MashZone NextGen version 10.7 or earlier is installed and the admin console is accessible, as the DriverUploadController vulnerable to authenticated RCE would be available to any user with admin 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.
From vendor dataRestrict admin console access to trusted users only, implement strict validation and verification of uploaded JDBC drivers before acceptance, and apply vendor-provided security patches when available.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 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 $9,024.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-33523 — 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-2021-33523 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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