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JunosOperating system · Juniper

CVE-2017-10607

HIGH · 7.5 CVSS v3.0 Published 2017-10-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Juniper Networks Junos OS 16.1R1, and services releases based off of 16.1R1, are vulnerable to the receipt of a crafted BGP Protocol Data Unit (PDU) sent directly to the router, which can cause the RPD routing process to crash and restart. Unlike BGP UPDATEs, which are transitive in nature, this issue can only be triggered by a packet sent directly to the IP address of the router. Repeated crashes of the rpd daemon can result in an extended denial of service condition. This issue only affects devices running Junos OS 16.1R1 and services releases based off of 16.1R1 (e.g. 16.1R1-S1, 16.1R1-S2, 16.1R1-S3). No prior versions of Junos OS are affected by this vulnerability, and this issue was resolved in Junos OS 16.2 prior to 16.2R1. No other Juniper Networks products or platforms are affected by this issue. This issue was found during internal product security testing.

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 confidence

Junos OS 16.1R1 contains a vulnerability in the RPD routing daemon's handling of specially crafted BGP Protocol Data Units sent directly to the router's IP address, causing the daemon to crash and restart. Unlike standard BGP UPDATEs which traverse networks, this attack requires direct packet delivery to the target. Repeated crashes can lead to extended denial of service.

MitigationUpgrade Junos OS to version 16.2 or later (prior to 16.2R1), or apply appropriate Junos service releases that include the fix. Implement network segmentation and access controls to limit direct access to router management interfaces.

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
JunosOperating system
Affected:= 16.1

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Junos OS version
    Run 'show version' or 'show version detail' on the device CLI to retrieve the installed Junos version
    Affected if The displayed version is 16.1 (any 16.1R1 through 16.1.x release)
  2. Verify BGP is configured
    Run 'show configuration protocols bgp' or 'show bgp summary' to check if BGP is enabled on the router
    Affected if BGP is actively configured or running on the device
  3. Confirm RPD daemon is running
    Run 'show routing daemon' or 'show system processes routing' to verify the RPD process is active
    Affected if RPD daemon is running (the vulnerability affects the RPD routing daemon)
  4. Check interface exposure
    Review 'show interface' output, specifically loopback (lo0) and management interfaces (em0, fxp0), and check if they are reachable from untrusted networks
    Affected if Management or loopback interfaces accepting BGP packets are directly accessible from external networks (the attack requires direct packet delivery to the router's IP address)

The device is affected if it runs Junos 16.1, has BGP configured, and has interfaces accepting direct BGP packets exposed to untrusted networks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade Junos OS to version 16.2 or later (prior to 16.2R1), or apply appropriate Junos service releases that include the fix. Implement network segmentation and access controls to limit direct access to router management interfaces.

Fix this in Junos Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,480
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-10607 in production — separate from our analysis above.

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What this is

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What belongs here
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