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CVE-2021-31384 Detail

Current Description

Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an attacker who attempts to access J-Web administrative interfaces can successfully do so from any device interface regardless of the web-management configuration and filter rules which may otherwise protect access to J-Web. This issue affects: Juniper Networks Junos OS SRX Series 20.4 version 20.4R1 and later versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  10.0 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  Juniper Networks, Inc.
Base Score:  7.2 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://kb.juniper.net/ Permissions Required 
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11252 Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-862 Missing Authorization cwe source acceptance level NIST   Contributor acceptance level Juniper Networks, Inc.  
CWE-1220 Insufficient Granularity of Access Control Contributor acceptance level Juniper Networks, Inc.  
CWE-285 Improper Authorization Contributor acceptance level Juniper Networks, Inc.  
CWE-939 Improper Authorization in Handler for Custom URL Scheme Contributor acceptance level Juniper Networks, Inc.  
CWE-551 Incorrect Behavior Order: Authorization Before Parsing and Canonicalization Contributor acceptance level Juniper Networks, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-31384
NVD Published Date:
10/19/2021
NVD Last Modified:
10/25/2021
Source:
Juniper Networks, Inc.