Riskcovery

CVE-2021-31384

Junos OS: SRX Series: Under a specific device configuration an attacker can access the devices J-Web management services from any interface, regardless of security settings protecting the service

State
Published
Severity
7.2 High
Published
Oct 19, 2021
Updated
Sep 16, 2024
Reserved
Apr 15, 2021

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Njuniper

Weaknesses

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

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 20.4R1Not affected
  • 20.4R1 to before 20.4*Affectedfrom 20.4R2-S1, 20.4R3Not affected
  • 21.1 to before 21.1R1-S1, 21.1R2Affected

References

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