CVE-2017-2329
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 · uneditedAn insufficient authentication vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow an unprivileged, authenticated, user to execute certain specific unprivileged system files capable of causing widespread denials of system services.
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 confidenceThe vulnerability allows an unprivileged authenticated user on the Juniper NorthStar Controller Application to execute certain specific system files that should be restricted. This authentication bypass enables a low-privilege user to cause denial of service by executing unprivileged system files that can disrupt system services.
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<= 2.1.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 installed NorthStar Controller versionCheck the application version via the web UI under Help > About, or run 'rpm -qa | grep northstar' or 'cat /opt/northstar/version' on the server if you have shell accessAffected if Version is 2.1.0 or earlier (the installed version falls within the <=2.1.0 range)
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Confirm NorthStar Controller service is runningCheck if the NorthStar application processes are active: run 'ps -ef | grep northstar' or check service status via 'systemctl status northstar' or equivalent init systemAffected if The service is running and accessible (the vulnerability requires the application to be active to exploit the auth bypass)
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Verify web/API interface accessibilityAttempt to access the NorthStar web UI or API endpoints (typically ports 8443 or 443) from a network perspective to confirm the management interface is exposedAffected if The web interface is reachable over the network (exploitation occurs through the HTTP/HTTPS interface)
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Review authentication configurationCheck the authentication settings in the NorthStar configuration files (typically under /opt/northstar/etc/ or via the web UI under Administration > Users) to confirm user authentication is enabledAffected if User authentication is configured and the application uses its internal auth (the bypass affects the internal authentication mechanism)
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Check for low-privilege user accountsList user accounts in NorthStar (via web UI or API) to see if there are any non-admin authenticated users with limited privilegesAffected if Low-privilege or standard user accounts exist in the system (the vulnerability allows these users to escalate access to restricted files)
If the installed NorthStar Controller version is 2.1.0 or earlier, the service is running, and low-privilege authenticated users exist, the environment is affected by this authentication bypass vulnerability.
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 Juniper NorthStar Controller Application to version 2.1.0 Service Pack 1 or later to address the insufficient authentication control.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,096.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-2329 — 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-2017-2329 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
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