Manageengine Admanager PlusApplication · Zohocorp

CVE-2021-37929

CRITICAL · 9.8 CVSS v3.1 Published 2021-10-07
Fix available
A fix is available. Upgrade to 7.1 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Zoho 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 · high confidence

Zoho ManageEngine ADManager Plus versions 7110 and prior contains an unrestricted file upload vulnerability that allows attackers to upload malicious files (such as web shells) to the server, leading to arbitrary code execution with the privileges of the affected service.

MitigationUpgrade to a version newer than 7110 or apply the vendor-supplied patch. If immediate patching is not possible, restrict upload functionality to trusted IP addresses and monitor for suspicious file uploads.

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
Manageengine Admanager PlusApplication
Affected:< 7.1= 7.1

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed ADManager Plus version
    Locate the version information in the product installation directory (typically in a version.txt file or through Help > About in the application web interface)
    Affected if The installed version is 7110 or earlier (version < 7.1 or = 7.1)
  2. Inspect web application directories for suspicious files
    Examine the webapps directory (particularly the adsrep folder and other web-accessible paths) for unknown .jsp, .asp, .php, .exe, or .sh files with unusual names or recent modification timestamps
    Affected if Unexpected script or executable files are present in web-accessible directories
  3. Review upload-related logs for exploitation attempts
    Search application and web server logs for POST requests to upload endpoints, focusing on unusual file extensions or high-volume upload activity
    Affected if Logs show uploads of potentially malicious file types (.jsp, .exe, .war) or requests to known web shell filenames

A user is affected if the installed version is 7110 or earlier, or if suspicious uploaded files exist in web directories or exploitation attempts appear in logs.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 7.1 or later
Fixed in 7.1
Interim mitigation

Upgrade to a version newer than 7110 or apply the vendor-supplied patch. If immediate patching is not possible, restrict upload functionality to trusted IP addresses and monitor for suspicious file uploads.

Recommended fix High confidence

Upgrade to ADManager Plus version 7.2 or later (or latest stable release)

  1. 1. Back up the current ADManager Plus installation and configuration
  2. 2. Download the latest version of ManageEngine ADManager Plus from the official ManageEngine download page
  3. 3. Stop the ADManager Plus service before upgrading
  4. 4. Install the new version following the standard upgrade procedure
  5. 5. Verify the upgrade was successful by checking the build version in the About section
  6. 6. Restart the ADManager Plus service
  7. 7. Test that the unrestricted file upload vulnerability is no longer exploitable
Caveat Review release notes for any changes to features or configuration requirements before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Manageengine Admanager Plus Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing4.0 h
  • Review / QA2.0 h
9.0 hours of engineering $1,540
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,464.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2021-37929 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-37929 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

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.

What belongs here
  • 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