CVE-2021-31384 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Reference

https://kb.juniper.net/ https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11252

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

10.0