CVE-2021-21469
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 · uneditedWhen security guidelines for SAP NetWeaver Master Data Management running on windows have not been thoroughly reviewed, it might be possible for an external operator to try and set custom paths in the MDS server configuration. When no adequate protection has been enforced on any level (e.g., MDS Server password not set, network and OS configuration not properly secured, etc.), a malicious user might define UNC paths which could then be exploited to put the system at risk using a so-called SMB relay attack and obtain highly sensitive data, which leads to Information Disclosure.
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 confidenceIn SAP NetWeaver Master Data Management on Windows, inadequate security guidelines allow an external operator to set custom paths in the MDS server configuration. When protections are insufficient (no MDS password, unsecure network/OS configuration), attackers can define UNC paths to perform SMB relay attacks and obtain highly sensitive data, resulting in information disclosure.
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= 7.10= 7.10.750= 710CVSS 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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Identify the installed SAP NetWeaver MDM versionUse SAP transaction MDMA or check the SAP MDG/MDM installation files to determine the exact version number. Compare against the affected versions: 7.10, 7.10.750, and 710.Affected if The installed version matches 7.10, 7.10.750, or 710 exactly.
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Verify if MDS server password is configuredAccess the SAP MDM Configuration or use transaction MDMC to check whether a password has been set for the MDS server. An unset or empty password indicates insufficient protection.Affected if No MDS server password is configured or the password is left blank.
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Inspect MDS server configuration for custom path settingsAccess the MDM Server configuration interface (via MDMA or MDM Administration) and review the path settings where custom directories can be defined.Affected if Custom path configuration options are accessible without proper authentication or there are configured paths that were not set by an administrator.
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Review network and OS security configurationExamine the Windows host and network configuration where MDM is installed. Check for SMB signing disabled, lack of network segmentation, or other unsecure network/OS settings.Affected if Network or OS security hardening is missing or inadequate for the MDM server.
A user is affected if running version 7.10, 7.10.750, or 710 AND the MDS server lacks a password AND custom path configuration is accessible, allowing potential SMB relay attack vectors.
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 dataSet a strong MDS server password and thoroughly review security guidelines for network and OS configuration to prevent unauthorized path configuration and SMB relay attacks.
- Consultation4.0 h
- Implementation6.0 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 $4,304.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-21469 — 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-2021-21469 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
- No spam, self-promotion, credentials, or personal data