dbcve.org
Manageengine Supportcenter PlusApplication · Zohocorp

CVE-2021-43296

HIGH · 7.5 CVSS v3.1 Published 2021-11-30
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
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 SupportCenter Plus before 11016 is vulnerable to an SSRF attack in ActionExecutor.

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 SupportCenter Plus before version 11016 contains a Server-Side Request Forgery (SSRF) vulnerability in the ActionExecutor component. This allows remote attackers to induce the server to make arbitrary HTTP requests to internal or external resources, potentially accessing sensitive internal services or bypassing network segmentation.

MitigationUpgrade to SupportCenter Plus version 11016 or later to remediate this vulnerability.

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 Supportcenter PlusApplication
Affected:= 11.0

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
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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. Verify SupportCenter Plus installation
    Locate the SupportCenter Plus installation directory and check for common installation paths (e.g., C:\SupportCenter Plus or /opt/SupportCenterPlus). Identify the service process running on typical ports (8080, 8443, or 9090).
    Affected if SupportCenter Plus is installed and running on the system
  2. Determine installed version
    Locate the version file or check within the application admin interface (typically found in About or Support section). Common version file locations include <install_dir>/conf/server.xml or check the build number in the application startup logs.
    Affected if Installed version is 11.0 or any version prior to 11016
  3. Confirm ActionExecutor component exposure
    Identify if the web application is exposed externally or to untrusted networks. Check for the ActionExecutor endpoint accessibility via HTTP/HTTPS (typically accessed at paths like /servlets/ActionExecutor or similar URL patterns under the application's servlet mapping).
    Affected if The application web interface (including ActionExecutor) is accessible from network locations beyond trusted internal users
  4. Test for SSRF vector availability
    If authorized and within scope, analyze HTTP access logs or attempt a benign test request to internal resources via the ActionExecutor component. This check requires careful scoping and authorization.
    Affected if The ActionExecutor component accepts and processes external request parameters that control server-side HTTP request destinations

The environment is affected if Zoho ManageEngine SupportCenter Plus version 11.0 or any version before 11016 is installed and the web application with the ActionExecutor component is network-accessible.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to SupportCenter Plus version 11016 or later to remediate this vulnerability.

Recommended fix High confidence

SupportCenter Plus 11016 or later

  1. Create a complete backup of the SupportCenter Plus database and configuration files
  2. Download SupportCenter Plus version 11016 or later from the official ManageEngine download portal
  3. Review the official upgrade documentation for SupportCenter Plus before proceeding
  4. Execute the upgrade installer on the production server
  5. After upgrade completes, verify the ActionExecutor component is functioning correctly
  6. Confirm the application is accessible and all services are running

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

Fix this in Manageengine Supportcenter Plus Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,720
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.

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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-2021-43296 in production — separate from our analysis above.

No notes yet

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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
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