CVE-2017-10623
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 · uneditedLack of authentication and authorization of cluster messages in Juniper Networks Junos Space may allow a man-in-the-middle type of attacker to intercept, inject or disrupt Junos Space cluster operations between two nodes. Affected releases are Juniper Networks Junos Space all versions prior to 17.1R1.
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 confidenceJunos Space cluster communications lack authentication and authorization controls, allowing a man-in-the-middle attacker to intercept, inject, or disrupt cluster operations between two nodes. The vulnerability exists because cluster messages are transmitted without verification of source legitimacy, enabling unauthorized injection or interception of sensitive cluster traffic.
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<= 16.2CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:H/PR:N/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 Junos Space installationLocate the Junos Space application on your system or check the version via the management interfaceAffected if Junos Space is installed and running
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Determine Junos Space versionAccess the Junos Space web interface or use the CLI to check the installed version numberAffected if Version is 16.2 or earlier (any version <= 16.2)
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Verify if clustering is enabledCheck the Junos Space configuration to determine whether the cluster feature is active (two-node or multi-node setup)Affected if Cluster mode is enabled and nodes are configured to communicate with each other
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Assess network exposure of cluster trafficExamine network segmentation and access controls around the inter-node communication channels used by the clusterAffected if Cluster communication traffic is on an accessible network segment where an attacker could intercept or inject traffic
You are affected if you are running Junos Space version 16.2 or earlier with clustering enabled and cluster traffic is reachable by an untrusted network segment.
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 Junos Space to version 17.1R1 or later to obtain the patched version. If immediate upgrade is not feasible, implement network segmentation using VLANs or firewalls to isolate cluster communication channels and prevent unauthorized access to inter-node traffic.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-10623 — 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-2017-10623 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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- Version or environment caveats, and links to real fixes
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