Denial of service in Junos OS Evolved AFT manager process

1) Uncaught Exception

EUVDB-ID: #VU54989

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-0286

CWE-ID: CWE-248 - Uncaught Exception

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper handling of exceptional conditions when processing packets in Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx). A remote attacker can send specially crafted packets to the affected device and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Junos OS Evolved: 20.4R1-EVO - 21.2-EVO

CPE2.3

• cpe:2.3:o:juniper_networks:junos_os_evolved:20.4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:21.1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:21.2-EVO:*:*:*:*:*:*:*

External links

https://kb.juniper.net/JSA11188

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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