CVE-2020-23620
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 · uneditedThe Java Remote Management Interface of all versions of Orlansoft ERP was discovered to contain a vulnerability due to insecure deserialization of user-supplied content, which can allow attackers to execute arbitrary code via a crafted serialized Java object.
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 confidenceAll versions of Orlansoft ERP contain an insecure deserialization vulnerability in the Java Remote Management Interface. Attackers can send crafted serialized Java objects that, when deserialized by the application, execute arbitrary code on the affected system.
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 dataall versionsCVSS 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 Orlansoft ERP installationLocate Orlansoft ERP installation directory or check system for Orlansoft ERP software components. Look for application binaries, services, or installed packages named 'Orlansoft' or 'Orlansoft ERP'.Affected if Orlansoft ERP software is present on the system
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Identify Java Remote Management InterfaceReview application configuration files, startup scripts, or documentation for references to 'Java Remote Management', 'JMX', 'Remote Manager', or similar remote management functionality. Check for configured management ports in the application.Affected if Java Remote Management Interface is configured or enabled in the application
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Verify network exposure of management interfaceUse netstat, ss, or similar tools to check if management ports (commonly JMX ports like 9010-9099, or custom management ports) are listening on network interfaces accessible from outside localhost. Review firewall rules and network configurations.Affected if The Java Remote Management Interface is listening on a non-localhost address or is network-accessible
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Inspect deserialization configurationExamine application configuration files for deserialization settings. Look for patterns indicating Java object serialization is used for remote communication, such as ObjectInputStream usage, serialized object endpoints, or lack of whitelisting controls.Affected if Java object deserialization is used for the remote management interface without class whitelisting or safe alternatives
If Orlansoft ERP is installed and its Java Remote Management Interface is network-accessible or uses unsafe deserialization, the system is vulnerable to remote code execution.
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 dataReplace the insecure deserialization implementation with a safe alternative (e.g., JSON, XML with strict schema validation), implement whitelisting for allowed classes, or apply any vendor-provided patch. Network-segment the affected interface if immediate patching is not feasible.
- Consultation6.0 h
- Implementation16.0 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-2020-23620 — 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-2020-23620 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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