CVE-2020-9407
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 · uneditedIBL Online Weather before 4.3.5a allows attackers to obtain sensitive information by reading the IWEBSERVICE_JSONRPC_COOKIE cookie.
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 · moderate confidenceIBL Online Weather before version 4.3.5a stores sensitive information in the IWEBSERVICE_JSONRPC_COOKIE cookie, which can be read by attackers to obtain potentially sensitive data such as session tokens or credentials.
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< 4.3.5CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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.
-
Identify the installed version of IBL Online WeatherLocate the application version in the software itself, typically found in the About section, version file, or header of the main interfaceAffected if The version is displayed as less than 4.3.5a (for example, 4.3.4, 4.3.0, or any version prior to 4.3.5)
-
Confirm the presence of the IWEBSERVICE_JSONRPC_COOKIE cookieInspect browser developer tools (Application/Storage tab) or capture HTTP traffic to identify if the IWEBSERVICE_JSONRPC_COOKIE is being set by the applicationAffected if The cookie named IWEBSERVICE_JSONRPC_COOKIE is present in the response headers or browser storage
-
Examine cookie contents for sensitive dataDecode the cookie value (it may be Base64 or otherwise encoded) and inspect whether it contains credentials, session tokens, user identifiers, or other sensitive informationAffected if The decoded cookie value reveals plaintext or encoded sensitive data such as usernames, passwords, session IDs, or authentication tokens
-
Verify authentication mechanismCheck the application configuration or documentation to determine if user authentication is required and if the cookie is used to store authentication stateAffected if The application uses authentication and the IWEBSERVICE_JSONRPC_COOKIE cookie is involved in maintaining authenticated sessions
-
Review application configuration for cookie security settingsInspect the application's cookie configuration or HTTP response headers to check if HttpOnly, Secure, or SameSite attributes are properly set on the IWEBSERVICE_JSONRPC_COOKIEAffected if The cookie lacks appropriate security flags (HttpOnly, Secure) or contains sensitive data without proper protection
You are affected if IBL Online Weather is installed at a version below 4.3.5a and the IWEBSERVICE_JSONRPC_COOKIE cookie is present and contains sensitive data such as credentials or session tokens.
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 data4.3.5
Upgrade IBL Online Weather to version 4.3.5a or later to remediate the vulnerability; until then, consider monitoring or restricting access to endpoints that return this cookie.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 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 $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9407 — 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-2020-9407 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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