Home/CVE/NFX Series devices using Juniper Networks Junos OS are susceptible to a local code execution vulnerability thereby allow
CVE

CVE-2021-0252

NFX Series devices using Juniper Networks Junos OS are susceptible to a local code execution vulnerability thereby allow

NFX Series devices using Juniper Networks Junos OS are susceptible to a local code execution vulnerability thereby allowing an attacker to elevate their privileges via the Junos Device Management Daemon (JDMD) process. This issue affects Juniper Networks Junos OS on NFX Series: 18.1 version 18.1R1 and later versions prior to 18.2R3-S5.

18.3 versions prior to 18.3R2-S4, 18.3R3-S3.

18.4 versions prior to 18.4R2-S5, 18.4R3-S4.

19.1 versions prior to 19.1R1-S3, 19.1R2.

19.2 versions prior to 19.2R1-S5, 19.2R2. This issue does not affect: Juniper Networks Junos OS versions prior to 18.1R1. This issue does not affect the JDMD as used by Junos Node Slicing such as External Servers use in conjunction with Junos Node Slicing and In-Chassis Junos Node Slicing on MX480, MX960, MX2008, MX2010, MX2020.

HIGH · CVSS 7.8 EPSS 0.00165
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
▤

Affected Products & Versions

1
juniper junosall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-gr7j-26pv-5v57github.com
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · sirt@juniper.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Apr 2021 · 08:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://kb.juniper.net/JSA11145Vendor Advisory
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