CVE-2021-44077
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 ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution. This is related to /RestAPI URLs in a servlet, and ImportTechnicians in the Struts configuration.
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 confidenceUnauthenticated remote code execution vulnerability in Zoho ManageEngine ServiceDesk Plus, ServiceDesk Plus MSP, and SupportCenter Plus. The flaw resides in the /RestAPI servlet and is tied to the ImportTechnicians functionality in Struts configuration, allowing remote attackers to execute arbitrary code without any authentication.
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< 11.1= 11.1= 11.2= 11.3< 10.5= 10.5< 11.0= 11.0CVSS 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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Identify the installed product and versionAccess the application admin console or check the application's 'About' or 'Version' page typically found in the Help or Administrator settings. For Zoho ManageEngine products, the version is often displayed on the login page or in the header area.Affected if The installed version is ServiceDesk Plus 11.1, 11.2, or 11.3; ServiceDesk Plus MSP 10.5 or below; or SupportCenter Plus 11.0 or below.
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Confirm the product typeDetermine whether the installation is ServiceDesk Plus, ServiceDesk Plus MSP, or SupportCenter Plus. This is visible in the product name on the login page or in the application header.Affected if The product is any of the three affected products: ServiceDesk Plus, ServiceDesk Plus MSP, or SupportCenter Plus.
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Check for /RestAPI endpoint exposureAttempt to access the /RestAPI endpoint by sending a request to https://<your-server>/RestAPI/ or check network logs and firewall rules to see if this endpoint is externally accessible.Affected if The /RestAPI endpoint is reachable from an untrusted network without authentication.
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Verify ImportTechnicians action availabilityCheck if the ImportTechnicians Struts action is present by examining the application's web.xml or struts configuration files, or by attempting to access a URL pattern like /RestAPI/ImportTechnicians (note: do not actually exploit, only verify the endpoint exists).Affected if The ImportTechnicians action is accessible and responds to requests.
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Review authentication enforcement on affected endpointsTest the /RestAPI endpoint with an unauthenticated request to confirm whether the application requires valid credentials before allowing access to sensitive API functions.Affected if The /RestAPI endpoint or ImportTechnicians action can be accessed without providing any authentication credentials.
You are affected if you are running any of the vulnerable versions (ServiceDesk Plus 11.1-11.3, ServiceDesk Plus MSP 10.5 or lower, or SupportCenter Plus 11.0 or lower) AND the /RestAPI endpoint is accessible without authentication.
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.
dbcve · scoped10.511.011.1
Immediately upgrade to patched versions: ServiceDesk Plus 11306+, ServiceDesk Plus MSP 10530+, or SupportCenter Plus 11014+. Until patched, consider network segmentation or restricting access to /RestAPI endpoints.
ServiceDesk Plus: 11.1 build 11306+ (latest 11.x); ServiceDesk Plus MSP: 10.5 build 10530+ (latest 10.x); SupportCenter Plus: 11.0 build 11014+ (latest 11.x)
- 1. Identify the currently installed ManageEngine product and version (ServiceDesk Plus, ServiceDesk Plus MSP, or SupportCenter Plus)
- 2. For ServiceDesk Plus: Upgrade to version 11.1 build 11306 or later (or the latest 11.x stable release)
- 3. For ServiceDesk Plus MSP: Upgrade to version 10.5 build 10530 or later (or the latest 10.x stable release)
- 4. For SupportCenter Plus: Upgrade to version 11.0 build 11014 or later (or the latest 11.x stable release)
- 5. Download the patch from the official ManageEngine support portal (pitstop.manageengine.com)
- 6. Back up the current installation and database before applying the upgrade
- 7. Apply the upgrade following ManageEngine's documented upgrade procedure
- 8. Verify the upgrade was successful and the /RestAPI endpoints now require authentication
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-44077 — 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-2021-44077 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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