CVE-2021-31384

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.

Scoring

Severity

HIGH

CVSS base score

7.2

CVSS vector

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

EPSS probability

0.36%

CWE

CWE-285, CWE-862, CWE-551, CWE-939, CWE-1220

Published

2021-10-19

Last modified

2026-03-13

Affected products

• Juniper Networks Junos OS
• Juniper Networks Junos OS
• Juniper Networks Junos OS

Weakness type

• CWE-285
• CWE-862
• CWE-551
• CWE-939
• CWE-1220

Related vulnerabilities

• CVE-2026-66422 — Apache Tomcat: Servlet role references can bypass declarative role constraints
• CVE-2026-55166 — Lemur: any SSO-authenticated user achieves AWS IAM compromise and permanent PKI key access via ACME acme_url SSRF and creator-equality IDOR
• CVE-2026-53952 — GetSimple CMS & GetSimpleCMS-CE have an Unauthenticated Admin Account Creation via Setup Logic Flaw
• CVE-2026-53548 — Termix: IDOR — Authenticated user can fetch SSH passwords for hosts owned by other users
• CVE-2026-73644 — OpenDJ: Authorization bypass in SASL PLAIN allowing a `proxied-auth` holder to impersonate any resolvable non-root user without an ACI proxy grant
• CVE-2026-45052 — OpenAM Pre-auth User Profile Tampering via Anonymous SOAP Authn in Liberty IDPP/Discovery Endpoints
• CVE-2026-48499 — Activepieces: Cross-tenant data exposure and code injection via the Code piece sandbox cache
• CVE-2026-18367 — A privilege escalation vulnerability allows local users to execute arbitrary code as root via Sophos Endpoint for macOS

Markdown version · Browse all CVEs