Vulnerability in Juniper Junos
CVE-2021-0246
On SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, devices using tenant services on Juniper Networks Junos OS, due to incorrect default permissions assigned to tenant system administrators a tenant system administrator may inadvertently send their network traffic to one or more tenants while concurrently modifying the overall device system traffic management, affecting all tenants and the service provider. Further, a tenant may inadvertently receive traffic from another tenant. This issue affects: Juniper Networks Junos OS 18.3 version 18.3R1 and later versions on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2; 18.3 versions prior to 18.3R3 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2; 18.4 versions prior to 18.4R2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3; 19.1 versions prior to 19.1R2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3. This issue does not affect: Juniper Networks Junos OS versions prior to 18.3R1.
EPSS: 0.002 (14.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:L.
Affected products
- Juniper Junos — versions 18.3, 18.4, 19.1
- Juniper Srx1500
- Juniper Srx4100
- Juniper Srx4200
- Juniper Srx4600
- Juniper Srx5400
- Juniper Srx5600
- Juniper Srx5800
- Juniper Networks Junos Os — versions unspecified, 18.4, 19.1
Weakness classification (CWE)
References
- sirt@juniper.net (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-0246?
- CVE-2021-0246 is a high-severity vulnerability in Juniper Junos, classified under Incorrect Default Permissions. CVSS score: 7.3/10. Published 2021-04-22.
- How severe is CVE-2021-0246?
- High severity. CVSS v3 base score is 7.3 out of 10.