Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-0253

Severity CVSS v4.0:
Pending analysis
Type:
CWE-77 Command Injection
Publication date:
22/04/2021
Last modified:
12/05/2022

Description

NFX Series devices using Juniper Networks Junos OS are susceptible to a local command 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 17.2 version 17.2R1 and later versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R2-S5, 18.4R3-S5; 19.1 versions prior to 19.1R1-S3; 19.2 version 19.1R2 and later versions prior to 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2-S2. 19.4 versions 19.4R3 and above. This issue does not affect Juniper Networks Junos OS versions prior to 17.2R1. 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.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
4.60
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r2-s11:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r2-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r2-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r3:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools