Manageengine Applications ManagerApplication · Zohocorp

CVE-2020-24743

CRITICAL · 9.8 CVSS v3.1 Published 2021-11-03
Fix available
A fix is available. Upgrade to 14.5 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
An issue was found in /showReports.do Zoho ManageEngine Applications Manager up to 14550, allows attackers to gain escalated privileges via the resourceid parameter.

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 confidence

Zoho ManageEngine Applications Manager versions up to 14550 contain a privilege escalation vulnerability in the /showReports.do endpoint. The resourceid parameter is not properly validated or authorized, allowing authenticated attackers to manipulate this parameter to access reports and resources outside their assigned permissions, effectively escalating privileges to higher-privileged users.

MitigationImplement proper authorization checks on the resourceid parameter in /showReports.do to ensure users can only access resources they are explicitly permitted to view, and validate all user-supplied resource identifiers against the authenticated user's permission set.

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 Applications ManagerApplication
Affected:< 14.5= 14.5

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 Applications Manager version
    Locate the installed version of Zoho ManageEngine Applications Manager. This is typically visible in the product UI header, about page, or in the installation directory version file. Compare against the affected version range (versions up to and including 14.5 / build 14550).
    Affected if Installed version is 14.5 or lower (build 14550 or below)
  2. Confirm /showReports.do endpoint exists
    Verify that the /showReports.do web endpoint is present and accessible in the Applications Manager installation. This is typically found at http(s)://[hostname]:[port]/showReports.do.
    Affected if The endpoint exists and responds to requests in the affected version range
  3. Verify authenticated user access
    Log into Applications Manager with a standard user account that has limited permissions. Confirm the user role assigned and the scope of reports/resources they are authorized to access.
    Affected if User authentication is functional and role-based access controls are in use
  4. Test resourceid parameter manipulation
    Using an authenticated low-privilege session, make a request to /showReports.do with a resourceid parameter value referencing a resource (such as a report or data) that the current user should NOT have permission to view. Observe whether the server returns the unauthorized resource.
    Affected if The server returns data for resourceid values outside the user's assigned permissions, indicating broken access control
  5. Check authorization headers in responses
    Examine HTTP responses when requesting /showReports.do with different resourceid values. Look for signs that authorization checks are not being enforced, such as successful 200 responses for cross-privilege-level resources.
    Affected if Responses indicate unauthorized resources are accessible without proper authorization validation

The environment is affected if Applications Manager version is 14.5 or lower and the /showReports.do endpoint permits authenticated users to access resources outside their assigned permission scope via manipulation of the resourceid parameter.

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 14.5 or later
Fixed in 14.5
Interim mitigation

Implement proper authorization checks on the resourceid parameter in /showReports.do to ensure users can only access resources they are explicitly permitted to view, and validate all user-supplied resource identifiers against the authenticated user's permission set.

Recommended fix Moderate confidence

Applications Manager version 14.6 or later

  1. 1. Backup the current Applications Manager installation and database before proceeding with any upgrade.
  2. 2. Download the latest version of ManageEngine Applications Manager from the official ManageEngine downloads page (www.manageengine.com).
  3. 3. Stop the Applications Manager service.
  4. 4. Install/upgrade to version 14.6 or later (the fixed release that addresses the privilege escalation vulnerability in /showReports.do).
  5. 5. Start the Applications Manager service.
  6. 6. Verify the upgrade was successful by logging into the admin console.
  7. 7. Confirm the resourceid parameter vulnerability is no longer exploitable by testing the /showReports.do endpoint with a non-privileged account.
Caveat Review release notes for any changes to functionality or configuration settings between version 14.5 and the target upgrade version

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

Fix this in Manageengine Applications Manager Scoped from the published advisory
  • Consultation4.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,600
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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-2020-24743 in production — separate from our analysis above.

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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
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