CVE-2020-9050
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 · uneditedPath Traversal vulnerability exists in Metasys Reporting Engine (MRE) Web Services which could allow a remote unauthenticated attacker to access and download arbitrary files from the system.
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 confidencePath Traversal vulnerability in Metasys Reporting Engine (MRE) Web Services allows remote unauthenticated attackers to access and download arbitrary files from the host system by manipulating file path parameters with directory traversal sequences (e.g., ../). The lack of proper input validation on file path parameters permits attackers to escape the intended web root directory and read sensitive system files, configuration data, or other confidential information.
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= 2.0= 2.1CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Confirm Metasys Reporting Engine installationLocate the Metasys Reporting Engine application on the system. Check for the MRE service or installed components, typically found in the Johnson Controls or Metasys installation directories.Affected if Metasys Reporting Engine is installed and running on the system.
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Determine installed MRE versionAccess the Metasys Reporting Engine application or check its version information through the installed software properties, About dialog, or version file within the MRE installation directory.Affected if The installed version is exactly 2.0 or exactly 2.1.
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Verify MRE Web Services are enabledCheck the MRE configuration or services panel to confirm that Web Services component is currently enabled and running.Affected if MRE Web Services module is enabled and operational.
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Assess network exposure of MRE Web ServicesDetermine if the MRE Web Services are accessible over the network by reviewing firewall rules, network configuration, or by attempting to access the Web Services endpoint from an external location.Affected if MRE Web Services are accessible from untrusted network segments or the public internet.
If Metasys Reporting Engine versions 2.0 or 2.1 are installed with Web Services enabled and exposed to untrusted networks, the environment is likely affected by this path traversal vulnerability.
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 dataApply vendor patches when available; if no patch exists, implement web application firewall rules or input validation to block traversal sequences, and restrict network access to MRE Web Services to trusted IPs.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9050 — 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-2020-9050 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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