CVE-2019-3783
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, deploys with a public default session store secret. A malicious user with default session store secret can brute force another user's current Stratos session, and act on behalf of that user.
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 deployed with a hardcoded/default session store secret that is publicly known. An attacker who knows this secret can perform brute force attacks against active user sessions to hijack them and impersonate legitimate users, performing actions as that user.
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
- 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 Stratos versionLocate and inspect the Stratos version information, typically found in the product UI, about page, or via command line tools provided by your deployment methodAffected if The installed version is less than 2.3.0
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Locate session store configurationFind the Stratos configuration file or environment variables where the session store secret is definedAffected if A session store secret is defined in the configuration
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Verify custom secret is in useExamine the configured session store secret value. Compare it against any publicly known default values for StratosAffected if The configured secret matches a known default or hardcoded value rather than a unique, randomly-generated secret
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Check for secret rotation historyReview deployment documentation, configuration management records, or secret management systems to determine if the session store secret has ever been changed from defaultsAffected if No evidence exists of the secret being changed from the default since initial deployment
User is affected if Stratos version is below 2.3.0 AND the session store secret is still set to the known default value rather than a unique custom secret.
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
Change the default session store secret to a unique, strong, randomly-generated value in the Stratos configuration and restart the service. Ensure the new secret is stored securely and not committed to version control.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-3783 — 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-2019-3783 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