CVE-2019-7280
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 · uneditedPrima Systems FlexAir, Versions 2.3.38 and prior. The session-ID is of an insufficient length and can be exploited by brute force, which may allow a remote attacker to obtain a valid session and bypass authentication.
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 confidencePrima Systems FlexAir versions 2.3.38 and prior generate session IDs with insufficient entropy, making them vulnerable to brute-force attacks. The weak session-ID generation allows a remote attacker to iteratively guess session identifiers until obtaining a valid authenticated session, thereby bypassing the authentication mechanism entirely.
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<= 2.3.38CVSS 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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Identify FlexAir versionLocate the installed FlexAir version number in the application (typically in About section, version info page, or HTTP server headers) and compare it to 2.3.38Affected if The installed version is 2.3.38 or any earlier version (e.g., 2.3.37, 2.3.30, etc.)
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Confirm session functionality is activeLog into FlexAir and obtain a session cookie or session identifier. Verify that the application uses session-based authentication by inspecting HTTP requests for session tokensAffected if Session-based authentication is in use and the version check above is positive
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Analyze session ID entropyCollect multiple session IDs from different login attempts and examine their format. Check if they appear predictable, sequential, or use limited character setsAffected if Session IDs show patterns, predictable sequences, or use a limited character set indicating low entropy
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Inspect session configurationIf accessible, examine FlexAir configuration files or admin settings for session management parameters such as session-ID generation method or timeout valuesAffected if Configuration reveals weak session-ID generation or no cryptographic random generation is specified
The environment is affected if FlexAir version is 2.3.38 or prior AND session-based authentication is active with weak session identifiers.
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 cryptographically secure session-ID generation using sufficient entropy (minimum 128-bit random values) and ensure proper session validation and timeout policies are enforced.
- 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-2019-7280 — 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-2019-7280 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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