Vulnerability identifier: #VU52324

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0246

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system
SRX1500
Hardware solutions / Routers & switches, VoIP, GSM, etc
SRX4100
Hardware solutions / Routers & switches, VoIP, GSM, etc
SRX4200
Hardware solutions / Routers & switches, VoIP, GSM, etc
SRX4600
Hardware solutions / Routers & switches, VoIP, GSM, etc
SRX5000
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A local administrator can 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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 18.3R1 - 18.3R2-S4, 18.3R2-S3, 18.4R1 - 18.4R1-S8, 18.4R1-S5, 19.1R1 - 19.1R1-S6, 19.1R1-S4

SRX1500: All versions

SRX4100: All versions

SRX4200: All versions

SRX4600: All versions

SRX5000: All versions

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External links
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11139&cat=SIRT_1&actp=LIST

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.