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JunosOperating system · Juniper

CVE-2014-3816

HIGH · 9.0 CVSS v2.0 Published 2014-07-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
96/100
Remediation priority · Urgent
Remotely reachable 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 Junos 11.4 before 11.4R12, 12.1 before 12.1R11, 12.1X44 before 12.1X44-D35, 12.1X45 before 12.1X45-D30, 12.1X46 before 12.1X46-D20, 12.1X47 before 12.1X47-D10, 12.2 before 12.2R8-S2, 12.3 before 12.3R7, 13.1 before 13.1R4-S2, 13.2 before 13.2R5, 13.3 before 13.3R2-S2, and 14.1 before 14.1R1 allows remote authenticated users to gain privileges via unspecified combinations of CLI commands and arguments.

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

Juniper Junos contains a privilege escalation vulnerability allowing remote authenticated users to gain elevated privileges through unspecified CLI command and argument combinations. The vulnerability affects multiple version branches from 11.4 through 14.1, and is rated high severity (CVSS 9) due to the complete privilege escalation capability available to authenticated attackers.

MitigationUpgrade Junos to versions 11.4R12, 12.1R11, 12.1X44-D35, 12.1X45-D30, 12.1X46-D20, 12.1X47-D10, 12.2R8-S2, 12.3R7, 13.1R4-S2, 13.2R5, 13.3R2-S2, or 14.1R1 and later as appropriate for the deployed platform.

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:= 11.4= 12.1= 12.1x44= 12.1x45= 12.1x46= 12.1x47= 12.2= 12.3= 13.1= 13.2= 13.3= 14.1

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
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:S/C:C/I:C/A:C

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. Confirm Junos is installed
    Run 'show version' or 'show version detail' on the device CLI to identify the operating system
    Affected if The device is not running Juniper Junos (not affected)
  2. Identify the Junos base version
    Parse the output of 'show version' to find the base version number (e.g., 11.4, 12.1, 12.2, 13.1, 13.2, 13.3, or 14.1)
    Affected if The base version falls within 11.4 through 14.1 and is not at or above the fixed patch levels listed in the advisory (potentially affected)
  3. Determine the exact Junos build version
    Check the full version string from 'show version' (e.g., 11.4R12, 12.1R11, 12.2R8-S2, 13.2R5, 14.1R1) and compare against the fixed versions provided in the advisory
    Affected if The installed build is earlier than 11.4R12, 12.1R11, 12.1X44-D35, 12.1X45-D30, 12.1X46-D20, 12.1X47-D10, 12.2R8-S2, 12.3R7, 13.1R4-S2, 13.2R5, 13.3R2-S2, or 14.1R1 (vulnerable)
  4. Verify remote access authentication is enabled
    Check configuration with 'show configuration system services' to confirm remote access services (ssh, web, etc.) are configured
    Affected if Remote authentication is enabled - the vulnerability affects remote authenticated users, so this configuration is required for the attack surface to exist

A user is affected if their Junos device runs a version between 11.4 and 14.1 that is earlier than the specific fixed patch levels for their branch, AND remote authentication services are enabled on the device.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade Junos to versions 11.4R12, 12.1R11, 12.1X44-D35, 12.1X45-D30, 12.1X46-D20, 12.1X47-D10, 12.2R8-S2, 12.3R7, 13.1R4-S2, 13.2R5, 13.3R2-S2, or 14.1R1 and later as appropriate for the deployed platform.

Recommended fix High confidence

Upgrade to the fixed release for your branch: 11.4R12, 12.1R11, 12.1X44-D35, 12.1X45-D30, 12.1X46-D20, 12.1X47-D10, 12.2R8-S2, 12.3R7, 13.1R4-S2, 13.2R5, 13.3R2-S2, or 14.1R1

  1. Identify the currently installed Junos version using 'show version' command
  2. Determine which branch your version belongs to (11.4, 12.1, 12.1X44, 12.1X45, 12.2, 12.3, 13.1, 13.2, 13.3, or 14.1)
  3. Download the appropriate fixed release for your branch from the Juniper downloads page: 11.4R12, 12.1R11, 12.1X44-D35, 12.1X45-D30, 12.1X46-D20, 12.1X47-D10, 12.2R8-S2, 12.3R7, 13.1R4-S2, 13.2R5, 13.3R2-S2, or 14.1R1
  4. Upload the Junos upgrade package to the device using 'file copy' or FTP/SCP
  5. Install the upgrade using 'request system software add <package> reboot'
  6. Verify the upgrade was successful and the new version is installed
Caveat Review Juniper release notes for any compatibility notices or configuration changes required for the target version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Junos Scoped from the published advisory
  • Consultation8.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,680
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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-2014-3816 in production — separate from our analysis above.

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