#VU21703 Input validation error in Juniper Junos OS - CVE-2019-0070

Vulnerability identifier: #VU21703

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-0070

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A local authenticated user can elevate his permissions to take control of other portions of the NFX platform and execute arbitrary commands outside their authorized scope of control.

Note: This vulnerability affects only Junos OS on NFX Series.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 18.2

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External links
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10977&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.