CVE-2019-3784
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 · uneditedCloud Foundry Stratos, versions prior to 2.3.0, contains an insecure session that can be spoofed. When deployed on cloud foundry with multiple instances using the default embedded SQLite database, a remote authenticated malicious user can switch sessions to another user with the same session id.
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 confidenceCloud Foundry Stratos versions prior to 2.3.0 have insecure session management when deployed with multiple instances using the default embedded SQLite database. An authenticated remote attacker can exploit session ID collision to switch sessions and impersonate other users, as the session store does not properly validate user ownership of session IDs across instances.
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< 2.3.0CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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 Stratos versionCheck the installed Stratos version by reviewing the deployment manifests, container images, or the Stratos UI footer which displays the version number. Compare against the affected range: versions prior to 2.3.0 are vulnerable.Affected if The installed version is Stratos < 2.3.0
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Confirm multi-instance deploymentReview the deployment configuration to determine if Stratos is deployed with multiple replicas or instances. Check for Kubernetes deployment replicas count, Cloud Foundry app instance count, or load balancer configuration showing multiple backend Stratos instances.Affected if Stratos is deployed with multiple instances (2 or more)
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Verify SQLite is the session storeExamine the Stratos configuration files (such as console-config.yaml or environment variables) for the session store type. The default embedded SQLite database is used unless an external database (like MySQL or PostgreSQL) has been explicitly configured.Affected if Using the default embedded SQLite database as the session store (no external session database configured)
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Inspect session validation behaviorReview session management configuration for evidence of proper user ownership validation. Check if session IDs are being validated against user context across instances, or examine logs for session collision warnings.Affected if Session store lacks proper user ownership validation for session IDs across instances
A user is affected if Stratos version is below 2.3.0 AND the deployment uses multiple instances with the default embedded SQLite database for session storage.
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 data2.3.0
Upgrade to Stratos version 2.3.0 or later which contains the fix for proper session isolation and validation. For existing deployments, verify session management behavior and consider implementing session invalidation for affected users.
- Consultation4.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-3784 — 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-2019-3784 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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