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JunosOperating system · Juniper

CVE-2014-6448

HIGH · 7.8 CVSS v3.1 Published 2020-01-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
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 OS 13.2 before 13.2R5, 13.2X51, 13.2X52, and 13.3 before 13.3R3 allow local users to bypass intended restrictions and execute arbitrary Python code via vectors involving shell access.

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

Local privilege escalation vulnerability in Juniper Junos OS where authenticated local users with shell access can bypass intended restrictions and execute arbitrary Python code.

MitigationUpgrade Junos OS to version 13.2R5 or 13.3R3 or later to patch the code execution bypass.

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:= 13.2= 13.2x51= 13.2x52= 13.3

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/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 checks

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

  1. Identify Junos OS installation
    Run 'show version' or 'show version detail' on the Juniper device CLI to confirm Junos OS is running
    Affected if Device is running any Junos OS version
  2. Check installed Junos version
    Run 'show version' and locate the firmware version string (e.g., 13.2, 13.2X51, 13.2X52, 13.3)
    Affected if Version matches exactly 13.2, 13.2X51, 13.2X52, or 13.3
  3. Verify shell access is configured
    Check configuration with 'show configuration system services' and look for 'system services shell' or 'system services ssh' with shell permission
    Affected if Shell access is enabled via 'system services shell' configuration allowing user shell access
  4. Confirm Python execution access
    Review user permissions and shell access level: users with shell access can invoke python interpreter via CLI command 'start shell' then 'python'
    Affected if Authenticated users have shell access and can execute Python commands

Device is affected if it runs Junos OS version 13.2, 13.2X51, 13.2X52, or 13.3 AND has shell access enabled for local users, allowing authenticated users to bypass restrictions and execute arbitrary Python code.

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 13.2R5 or 13.3R3 or later to patch the code execution bypass.

Fix this in Junos Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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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-2014-6448 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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