CVE-2020-8477
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 installations for ABB System 800xA Information Manager versions 5.1, 6.0 to 6.0.3.2 and 6.1 wrongly contain an auxiliary component. An attacker is able to use this for an XSS-like attack to an authenticated local user, which might lead to execution of arbitrary code.
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 confidenceABB System 800xA Information Manager versions 5.1, 6.0-6.0.3.2, and 6.1 contain an auxiliary component that introduces a vulnerability allowing XSS-like attacks against authenticated local users, potentially enabling arbitrary code execution.
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>= 6.0.0, <= 6.0.3.2= 5.1= 6.1CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 installed ABB 800xA Information Manager versionCheck the product version through the Windows Add/Remove Programs list, or locate the version information in the installation directory's README or version file, or query the application's About dialog if accessible.Affected if The installed version is 5.1, any version from 6.0.0 through 6.0.3.2, or exactly version 6.1.
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Locate the auxiliary component directoryBrowse the ABB 800xA Information Manager installation folder (typically under C:\Program Files\ABB\ or C:\Program Files (x86)\ABB\) and locate subfolders or modules labeled as 'auxiliary', 'add-on', 'plugin', or similar. Check both the main application directory and any child directories named for optional components.Affected if The auxiliary component directory or module exists within the ABB installation folder.
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Verify the auxiliary component is present and enabledInspect the auxiliary component's configuration files (look for .config, .xml, or .ini files in the component's directory) to confirm the component is installed. Check whether the component is referenced in any main application configuration files or manifests.Affected if The auxiliary component files are present and registered within the ABB Information Manager configuration.
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Check if the web interface or service is accessibleDetermine whether the ABB Information Manager web server or associated service is running and accessible. Check Windows Services for ABB-related services, or attempt to access the web interface on typical ports if exposed.Affected if The ABB Information Manager service or web interface is running and accepts authenticated user connections.
You are affected if your installed ABB 800xA Information Manager version falls within 5.1, 6.0-6.0.3.2, or 6.1, AND the vulnerable auxiliary component is present and enabled in your environment.
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 dataIdentify and remove the auxiliary component from affected installations, or contact ABB for a patched version and guidance on secure configuration.
- Consultation4.0 h
- Implementation3.0 h
- Testing3.0 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 $3,440.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-8477 — 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-2020-8477 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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