CVE-2021-37918
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 · uneditedZoho ManageEngine ADManager Plus version 7110 and prior allows unrestricted file upload which leads to remote code execution.
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 · moderate confidenceZoho ManageEngine ADManager Plus versions 7110 and prior contains an unrestricted file upload vulnerability in its web interface. An attacker can upload malicious files (such as web shells) to the server without proper validation, leading to 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< 7.1= 7.1CVSS 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
- 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 ADManager Plus installation and locate version fileNavigate to the ADManager Plus installation directory (commonly C:\ManageEngine\ADManager Plus or /opt/ManageEngine/ADManagerPlus) and locate the version.txt or build.txt file. Alternatively, access the application's About page via the web interface at /jsp/index.jsp or /home.jsp and look for the build number.Affected if The installed build number is 7110 or lower (for example, 7100, 7080, etc.)
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Check the build number in product.confIn the installation directory, open the conf/product.conf file and look for the 'buildNumber' or 'version' entry. ManageEngine uses build numbers rather than semantic versioning.Affected if The buildNumber value is 7110 or less
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Verify the running service version via Windows Registry or processOn Windows, check the installed version via Registry at HKEY_LOCAL_MACHINE\SOFTWARE\ManageEngine\ADManager Plus or by examining the running ADManager Plus service process properties. On Linux, check the running process or service for version indicators.Affected if The registered or running version shows 7110 or prior
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Identify web interface exposureDetermine if the ADManager Plus web interface (default ports 8080 or 8443) is accessible from untrusted networks. Check firewall rules, reverse proxy configurations, and network segmentation around the server.Affected if Port 8080/8443 or the configured web port is open to the internet or untrusted internal networks without proper access controls
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Audit uploaded files in the web rootInspect the directory where uploaded files are stored (typically the 'work' or 'temp' subdirectories within the ADManager Plus installation) for unexpected .jsp, .asp, .php, or executable files with suspicious names or recent creation timestamps.Affected if Unexpected script files (especially .jsp shells) or executables are found in upload directories with dates coinciding with potential exploitation
The environment is affected if ManageEngine ADManager Plus build number is 7110 or lower AND the web interface is network-accessible to potential attackers.
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 data7.1
Upgrade ManageEngine ADManager Plus to a version newer than 7110. If immediate patching is not possible, restrict network access to the application's management interface and monitor for suspicious file uploads.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-37918 — 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-2021-37918 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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