CVE-2017-2323
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 · uneditedA denial of service vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow a malicious attacker crafting packets destined to the device to cause a persistent denial of service to the path computation server service.
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 confidenceA denial of service vulnerability in Juniper Networks NorthStar Controller Application versions prior to 2.1.0 Service Pack 1 allows remote attackers to cause a persistent DoS condition by sending specially crafted packets to the path computation server service.
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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/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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Confirm NorthStar Controller is installedIdentify whether the Juniper NorthStar Controller Application is present in your environment by checking running processes, installed software listings, or application directoriesAffected if The NorthStar Controller Application is found on the system
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Determine installed versionLocate the version information for the NorthStar Controller Application via its web UI, CLI interface, or version file within the installation directoryAffected if The installed version is 2.1.0 or earlier, or cannot be determined to be 2.1.0 Service Pack 1 or later
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Verify path computation server service statusCheck whether the path computation server (PCS) service is enabled and running on the NorthStar Controller, typically via the application's service management interface or system processesAffected if The path computation server service is actively running and reachable
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Assess network exposure of management interfaceReview firewall rules and network configuration to determine if the NorthStar Controller management interface or path computation server service ports are exposed to untrusted networksAffected if The management interface or PCS service ports are accessible from untrusted or external networks
You are affected if the NorthStar Controller Application version is 2.1.0 or earlier and the path computation server service is exposed on the network.
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 Juniper NorthStar Controller Application version 2.1.0 Service Pack 1 or later to patch the vulnerability. Implement network segmentation and firewall rules to limit exposure of the management interface to untrusted networks.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-2323 — 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-2017-2323 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