CVE-2018-2379
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 · uneditedIn SAP HANA Extended Application Services, 1.0, an unauthenticated user could test if a given username is valid by evaluating error messages of a specific endpoint.
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 HANA Extended Application Services 1.0, an information disclosure vulnerability allows unauthenticated attackers to enumerate valid usernames by analyzing差异化 error messages returned from a specific endpoint. The endpoint reveals whether a username exists based on error message content, enabling automated user enumeration attacks.
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= 1.0CVSS 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
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/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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Verify SAP HANA XS is runningCheck if SAP HANA Extended Application Services (XS) is accessible on the typical ports (8000, 8001, 8090, or 4300) by accessing the base URL or checking running processes for hdbxsengine or similar SAP HANA XS processesAffected if SAP HANA XS 1.0 is exposed and running
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Confirm the version is 1.0Access the SAP HANA XS admin endpoint or check the SAP HANA installation details to verify the version is exactly 1.0Affected if The installed version is SAP HANA XS 1.0
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Identify if the vulnerable endpoint is accessibleAttempt to access common SAP HANA XS endpoints that handle user authentication or account-related requests, such as /sap/hana/xs/sec/ or endpoints under the security moduleAffected if The endpoint is reachable without authentication
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Test for differential error messagesSend HTTP requests with valid-looking usernames and invalid usernames to the endpoint, then compare the error responses. Look for differences in error message content, timing, or HTTP status codes between existing and non-existing usernamesAffected if Different error messages are returned for valid versus invalid usernames, revealing whether an account exists
A user is affected if SAP HANA Extended Application Services 1.0 is running with the vulnerable endpoint exposed and the error messages differ based on username validity, allowing user enumeration.
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 dataImplement generic error messages that do not disclose whether a username is valid or invalid, and restrict or disable the vulnerable endpoint. Additionally, apply rate limiting to mitigate automated enumeration attempts.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-2379 — 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-2018-2379 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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