CVE-2018-2409
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 · uneditedImproper session management when using SAP Cloud Platform 2.0 (Connectivity Service and Cloud Connector). Under certain conditions, data of some other user may be shown or modified when using an application built on top of SAP Cloud Platform.
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 confidenceImproper session management in SAP Cloud Platform 2.0's Connectivity Service and Cloud Connector allows session data to be improperly shared or accessed between users under certain conditions, potentially leading to unauthorized cross-user data exposure or modification.
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= 2.0CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/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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Identify your SAP Cloud Platform versionAccess the SAP Cloud Platform cockpit and navigate to the account overview or system information section to confirm the exact version number deployed in your environment.Affected if The version is exactly 2.0 (version 2.0 without additional patches or updates applied)
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Determine if Connectivity Service is enabledIn the SAP Cloud Platform cockpit, navigate to the Services or Subscriptions section and check whether the Connectivity Service is provisioned or enabled for your subaccount.Affected if Connectivity Service is active and no security patches addressing CVE-2018-2409 have been applied to the 2.0 environment
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Determine if Cloud Connector is configuredAccess the Cloud Connector administration interface and verify whether it is configured and linked to your SAP Cloud Platform 2.0 subaccount for on-premise connectivity.Affected if Cloud Connector is configured and linked to an unpatched SAP Cloud Platform 2.0 instance
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Review session isolation configurationExamine the session management settings within the Connectivity Service and Cloud Connector admin interfaces, looking for configuration parameters related to session token handling, user session isolation, or session sharing between users.Affected if Session isolation is not explicitly enforced or configured, allowing potential cross-user session data access
You are affected if you are running SAP Cloud Platform version 2.0 with Connectivity Service or Cloud Connector enabled and have not applied the corresponding security patches for CVE-2018-2409.
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 SAP security patches and updates for Cloud Platform 2.0, and review session management configurations in the Connectivity Service and Cloud Connector to enforce proper user session isolation.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $12,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-2409 — 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-2018-2409 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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