CVE-2020-6366
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 · uneditedSAP NetWeaver (Compare Systems) versions - 7.20, 7.30, 7.40, 7.50, does not sufficiently validate uploaded XML documents. An attacker with administrative privileges can retrieve arbitrary files including files on OS level from the server and/or can execute a denial-of-service.
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 confidenceSAP NetWeaver Compare Systems component does not properly validate uploaded XML documents, allowing authenticated administrators to perform XML injection attacks (likely XXE) that can read arbitrary files from the server filesystem or cause denial of service.
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= 7.20= 7.30= 7.31= 7.40= 7.50CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/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 SAP NetWeaver installation and versionRun transaction SM51 to display the SAP System version, or check the kernel version using the 'sapkernel' executable version. Alternatively, examine the SAP NOTE 2945909 for this CVE which lists specific version information.Affected if The installed NetWeaver version matches 7.20, 7.30, 7.31, 7.40, or 7.50 exactly
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Verify Compare Systems component is availableCheck if the Compare Systems (transaction SCOL) or related system comparison functionality is accessible in the SAP system. Use transaction SE16 to query table TADIR for objects related to 'COMPARESYSTEMS' or check via SAP MII transaction if available.Affected if The Compare Systems component is installed and accessible in the environment
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Confirm administrative access to Compare SystemsUse transaction SU01 or SUIM to review user assignments to roles containing authorization for Compare Systems functionality (object S_RSCOL or S_RS_COMP). Check if any administrator-level users have this authorization.Affected if Authenticated administrator users exist with access to Compare Systems functionality
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Test XML upload capability in Compare SystemsAccess the Compare Systems transaction and examine whether XML document upload or import features are available. Review the configuration at transaction SCOL and related system settings.Affected if XML upload or import functionality is enabled within Compare Systems
A user is affected if they run SAP NetWeaver versions 7.20-7.50 with the Compare Systems component enabled and accessible to authenticated administrators, allowing XXE attacks via XML document upload.
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 the relevant SAP security patch for CVE-2020-6366. Until patched, restrict administrative access to the Compare Systems functionality and disable it if not business-critical.
- Consultation4.0 h
- Implementation4.0 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 $4,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-6366 — 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-2020-6366 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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