CVEvulnerability

CVE-2021-31384

10.0 CRITICAL Published 2021-10-19 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-10-19
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS 3.1 ([email protected])
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-1220, CWE-285, CWE-551, CWE-862, CWE-939

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.

Affected configurations

• juniper junos 20.4 • juniper junos 21.1

Related

Weakness · CWE (5)

  • CWE-1220 Insufficient Granularity of Access Control weakness
  • CWE-285 Improper Authorization weakness
  • CWE-551 Incorrect Behavior Order: Authorization Before Parsing and Canonicalization weakness
  • CWE-862 Missing Authorization weakness
  • CWE-939 Improper Authorization in Handler for Custom URL Scheme weakness

References