CVE-2017-9809
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 · uneditedOX Software GmbH OX App Suite 7.8.4 and earlier is affected by: Information Exposure.
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 · low confidenceOX App Suite versions 7.8.4 and earlier contain an information exposure vulnerability. The specific nature of the exposed information and the attack vector are not detailed in the available sources. CVSS 5.3 indicates network-exploitable, low-complexity access with low confidentiality impact.
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<= 7.8.4CVSS 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:3.0/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.
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Determine installed OX App Suite versionAccess the OX Admin panel or run the command line tool typically found at /opt/open-xchange/bin/listversions to retrieve the exact version number of the installed OX App Suite packagesAffected if The displayed version number is 7.8.4 or any earlier version (such as 7.8.3, 7.8.2, etc.)
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Verify OX middleware versionCheck the open-xchange-server bundle version using the command 'swadmin -l -A <adminuser>' or inspect the package manager output for open-xchange-server package versionAffected if The open-xchange-server package version corresponds to App Suite 7.8.4 or earlier
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Confirm the deployment uses unpatched OX App SuiteReview any system documentation, change logs, or configuration management records that document the OX App Suite release version deployed in the environmentAffected if Documentation confirms deployment of version 7.8.4 or earlier of OX App Suite
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Check network accessibility of OX App SuiteDetermine if the OX App Suite web interface (typically ports 80 or 443, or custom HTTPS port) is exposed to untrusted networks by reviewing firewall rules, load balancer configurations, or network segmentation settingsAffected if The application is reachable from networks outside the trusted internal environment
The environment is affected if OX App Suite version 7.8.4 or earlier is installed and exposed to network access, regardless of authentication status, since the information exposure flaw can be exploited remotely without special privileges.
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 dataUpgrade to a version newer than 7.8.4 or contact OX Software GmbH for vendor-supplied patches. As a general measure for information exposure vulnerabilities, restrict network access to the application and ensure proper authentication and authorization controls are in place.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-9809 — 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-2017-9809 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