CVE-2017-2310
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 firewall bypass vulnerability in the host based firewall of Juniper Networks Junos Space versions prior to 16.1R1 may permit certain crafted packets, representing a network integrity risk.
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 confidenceThis is a firewall bypass vulnerability in the host-based firewall of Juniper Networks Junos Space network management platform. Versions prior to 16.1R1 fail to properly filter or block certain crafted packets, allowing them to pass through the firewall when they should be blocked. This compromises the network integrity boundary that the host-based firewall is meant to enforce.
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<= 15.2CVSS 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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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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Identify Junos Space installationLocate the Junos Space platform in your environment and confirm it is the network management platform from Juniper NetworksAffected if Junos Space is present in the environment
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Determine installed Junos Space versionAccess the Junos Space web interface or CLI and retrieve the exact version number runningAffected if The version is 15.2 or any version prior to 15.2 (versions <= 15.2 are affected)
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Verify host-based firewall is enabledCheck the Junos Space firewall configuration to confirm the host-based firewall feature is turned on and activeAffected if The host-based firewall is enabled - if disabled, the bypass cannot be exploited
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Review firewall rule configurationInspect the host-based firewall ruleset to see which traffic types are being filtered or permittedAffected if Firewall rules exist that should block certain packet types but the bypass allows them through
You are affected if Junos Space version 15.2 or earlier is running AND the host-based firewall is enabled, as the firewall will fail to properly filter the specified crafted packets.
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 16.1R1 or later to obtain the patched host-based firewall behavior. If immediate upgrade is not possible, restrict network access to the Junos Space management interfaces and implement additional perimeter filtering as a compensating control.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2017-2310 — 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-2017-2310 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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