CVE-2020-15087
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 Presto before version 337, authenticated users can bypass authorization checks by directly accessing internal APIs. This impacts Presto server installations with secure internal communication configured. This does not affect installations that have not configured secure internal communication, as these installations are inherently insecure. This only affects Presto server installations. This does NOT affect clients such as the CLI or JDBC driver. This vulnerability has been fixed in version 337. Additionally, this issue can be mitigated by blocking network access to internal APIs on the coordinator and workers.
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 Presto before version 337, authenticated users can bypass authorization checks by directly accessing internal APIs, which should be restricted to internal communication only. This allows privilege escalation on installations with secure internal communication configured.
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< 337CVSS 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:3.1/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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Determine installed Presto versionRun 'presto-server --version' or check the version file in the Presto installation directory, or query the Presto coordinator's /v1/info endpointAffected if The version is lower than 337 (e.g., 336, 335, etc.)
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Identify internal API endpoints configurationExamine Presto configuration files (config.properties) for 'http-server.http.port', 'http-server.https.port', and any 'internal-communication' related settingsAffected if HTTP/HTTPS ports are exposed externally or internal communication is configured without proper network restrictions
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Verify authentication is enabledCheck config.properties for 'authentication.type' setting (e.g., password, kerberos, jwt)Affected if Authentication is configured (indicating the internal API could be accessed by authenticated users)
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Test internal API accessibilityAttempt to access internal-only endpoints such as /v1/cluster, /v1/query, or worker-to-worker APIs from an external network location using valid credentialsAffected if Internal APIs are reachable from outside the trusted network and accept authenticated requests
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Check authorization model configurationReview access control configuration files (access-control.properties) and any defined rules for internal API pathsAffected if Authorization rules exist but do not explicitly deny access to internal API endpoints for authenticated users
The environment is affected if Presto version is below 337 AND internal API endpoints are network-accessible to authenticated users, allowing privilege escalation through authorization bypass.
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 data337
Upgrade Presto to version 337 or later, or block network access to internal APIs on both coordinator and workers via firewall rules or network policies.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-15087 — 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-2020-15087 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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- Version or environment caveats, and links to real fixes
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